DC Elseworlds List

I've liked the odd "DC Imaginary Story", which were a periodic DC gimmick to create "out of continuity" stories, primarily for the Superman family.  These were often "Superman marries Lois"-type stories, where the writers can play with the key characters without messing up the "real universe". 

In later decades, DC more formally set about "out of continuity  stories with Elseworlds, which started with "Gotham by Gaslight (1989)" a Batman story, and came to be more prominent by being the theme for all main DC 1991 annuals, 1996 annuals and other mini-series and events.

Both Marvel and DC periodically engaged in cross-over storylines (e.g. Superman and Spider-Man, or Batman and Daredevil), which can be considered "Elseworlds" or "What Ifs", though not labelled as such, though I've included them here.

I've included the earlier DC "Imaginary Stories" that I've found in the "Elseworlds" lists, and have identified as such.

I've sorted by date of publication, and the full reference to the comic book series (e.g. "EW 1959 - Imaginary Stories - Action Comics (1938) 259"   - refers to issue #259 of Action Comics, which began publication in 1938 - the actual issue was published in 1959, and was one of the pre-Elseworlds "Imaginary Stories").  This sorts the issues in mostly chronological order, though no attempt was made to order by months within years, as most stories were "stand-alone" anyway and didn't require that level of organization.

I've included the "Super Sons" stories of the mid-1970's World Finest Comics, as I remember these, and they tend to mirror the earlier Imaginary Stories where one of Superman or Batman were married with kids - I don't think they were acknowledged as "Imaginary Stories" when first published, and they pre-date "Elseworlds" but are nonetheless a non-continuity, possible world.

*** Update

As per the comics below, shadzane (http://shadzane.livejournal.com/) has provided me with some missed "Elseworlds/Imaginary Story" issues.  Thanks very much.

Here are the additions suggested by shadzane:

EW 1962 Lois Lane (1958) 037

EW 1965 Lois Lane (1958) 060

EW 1969 Lois Lane (1958) 089

EW 1966 Action Comics (1938) 333

EW 1966 Action Comics (1938) 332

EW 1984 Superman (1939) 404

EW 1985 Superman (1939) 417

EW 1958 Superman (1939) 122

EW 1966 Worlds Finest (1958) 157

EW 1967 Worlds Finest (1958) 167

EW 1968 Worlds Finest (1958) 178

EW 1968 Worlds Finest (1958) 180

Here is the updated list (with the above additions)

EW 1946 - Imaginary Stories - Captain Marvel Adventures (1941) 66

EW 1958 - Imaginary Stories - Jimmy Olsen (1954) 029

EW 1958 - Imaginary Stories - Superman (1939) 122

EW 1958 - Imaginary Stories - Superman (1939) 125

EW 1959 - Imaginary Stories - Action Comics (1938) 259

EW 1959 - Imaginary Stories - Batman (1940) 127

EW 1959 - Imaginary Stories - Superman (1939) 122

EW 1960 - Imaginary Stories - Action Comics (1938) 270

EW 1960 - Imaginary Stories - Batman (1940) 131

EW 1960 - Imaginary Stories - Batman (1940) 135

EW 1960 - Imaginary Stories - Lois Lane (1958) 019

EW 1960 - Imaginary Stories - Lois Lane (1958) 020

EW 1960 - Imaginary Stories - Superboy (1949) 078

EW 1960 - Imaginary Stories - Superman (1939) 132

EW 1960 - Imaginary Stories - Superman (1939) 137

EW 1961 - Imaginary Stories - Action Comics (1938) 275

EW 1961 - Imaginary Stories - Action Comics (1938) 279

EW 1961 - Imaginary Stories - Jimmy Olsen (1954) 056

EW 1961 - Imaginary Stories - Jimmy Olsen (1954) 057

EW 1961 - Imaginary Stories - Lois Lane (1958) 023

EW 1961 - Imaginary Stories - Lois Lane (1958) 025

EW 1961 - Imaginary Stories - Lois Lane (1958) 026

EW 1961 - Imaginary Stories - Superman (1939) 149

EW 1962 - Imaginary Stories - Adventure Comics (1938) 299

EW 1962 - Imaginary Stories - Batman (1940) 145

EW 1962 - Imaginary Stories - Batman (1940) 151

EW 1962 - Imaginary Stories - Flash (1959) 128

EW 1962 - Imaginary Stories - Lois Lane (1958) 037

EW 1962 - Imaginary Stories - Superboy (1949) 095

EW 1963 - Imaginary Stories - Superman (1939) 162

EW 1964 - Imaginary Stories - 80 Page Giant 01 (Superman)

EW 1964 - Imaginary Stories - 80 Page Giant 05 (Batman) (1964)

EW 1964 - Imaginary Stories - Lois Lane (1958) 051

EW 1964 - Imaginary Stories - Superman (1939) 166

EW 1965 - Imaginary 1965 - Worlds Finest Comics (1941) 153

EW 1965 - Imaginary 1965 - Worlds Finest Comics (1941) 154

EW 1965 - Imaginary Stories - Lois Lane (1958) 060

EW 1965 - Imaginary Stories - Superboy (1949) 124

EW 1965 - Imaginary Stories - Superman (1939) 175

EW 1966 - Imaginary Stories - Action Comics (1938) 332

EW 1966 - Imaginary Stories - Action Comics (1938) 333

EW 1966 - Imaginary Stories - Batman (1940) 145

EW 1966 - Super-Sons - Worlds Finest Comics (1941) 157

EW 1967 - Imaginary Stories - Superman (1939) 200

EW 1967 - Imaginary Stories - Worlds Finest Comics (1941) 167

EW 1967 - Imaginary Stories - Worlds Finest Comics (1941) 172

EW 1968 - Imaginary Stories - Worlds Finest Comics (1941) 178

EW 1968 - Imaginary Stories - Worlds Finest Comics (1941) 180

EW 1969 - Imaginary Stories - Jimmy Olsen (1954) 117

EW 1969 - Imaginary Stories - Lois Lane (1958) 089

EW 1969 - Imaginary Stories - Lois Lane (1958) 091

EW 1969 - Imaginary Stories - Worlds Finest Comics (1941) 184

EW 1970 - Imaginary Stories - Superman (1939) 230

EW 1972 - Imaginary Stories - Lois Lane (1958) 125

EW 1972 - Imaginary Stories - Lois Lane (1958) 126

EW 1972 - Super-Sons - Worlds Finest Comics (1941) 215

EW 1973 - Super-Sons - Worlds Finest Comics (1941) 216

EW 1974 - Super-Sons - Worlds Finest Comics (1941) 221

EW 1974 - Super-Sons - Worlds Finest Comics (1941) 222

EW 1974 - Super-Sons - Worlds Finest Comics (1941) 224

EW 1975 - Super-Sons - Worlds Finest Comics (1941) 228

EW 1975 - Super-Sons - Worlds Finest Comics (1941) 230

EW 1975 - Super-Sons - Worlds Finest Comics (1941) 231

EW 1975 - Super-Sons - Worlds Finest Comics (1941) 233

EW 1976 - Imaginary Stories - Superman (1939) 300

EW 1976 - Super-Sons - Worlds Finest Comics (1941) 238

EW 1976 - Super-Sons - Worlds Finest Comics (1941) 242

EW 1976 - Superman vs Spider-Man (1976) (1995 Reprint)

EW 1978 - Imaginary Stories - Batman (1940) 300

EW 1978 - Imaginary Stories - Superman Family (1974) 192

EW 1978 - Superman Vs. Muhammed Ali

EW 1980 - Super-Sons - Worlds Finest Comics (1941) 263

EW 1981 - Batman vs Hulk (DC-27)

EW 1981 - DC Special Series 027 (1981) - BM vs Hulk

EW 1981 - Superman-Spider-Man (Marvel Treasury Edition 28)

EW 1982 - The Uncanny X-Men & The New Teen Titans

EW 1984 - Imaginary Stories - Superman (1939) 404

EW 1985 - Imaginary Stories - Superman (1939) 417

EW 1986 - Batman The Dark Knight Returns - 00 - Introduction

EW 1986 - Batman The Dark Knight Returns - 01 - The Dark Knight Returns

EW 1986 - Batman The Dark Knight Returns - 02 - The Dark Knight Triumphant

EW 1986 - Batman The Dark Knight Returns - 03 - Hunt The Dark Knight

EW 1986 - Batman The Dark Knight Returns - 04 - The Dark Knight Falls

EW 1986 - Watchmen (1986) 01

EW 1986 - Watchmen (1986) 02

EW 1986 - Watchmen (1986) 03

EW 1986 - Watchmen (1986) 04

EW 1986 - Watchmen (1986) 05

EW 1986 - Watchmen (1986) 06

EW 1986 - Watchmen (1986) 07

EW 1986 - Watchmen (1986) 08

EW 1986 - Watchmen (1986) 09

EW 1986 - Watchmen (1986) 10

EW 1986 - Watchmen (1986) 11

EW 1986 - Watchmen (1986) 12

EW 1986 - Whatever Happened to the Man of Tomorrow Pt 1 - Superman 423

EW 1986 - Whatever Happened to the Man of Tomorrow Pt 2 - Action Comics 583

EW 1986 - World of the Watchmen, The

EW 1989 - Batman - Gotham by Gaslight

EW 1990 - Batman - Digital Justice

EW 1991 - Armageddon 2001 - 01 - Armageddon 2001 1

EW 1991 - Armageddon 2001 - 02 - Superman (1987) Annual 03

EW 1991 - Armageddon 2001 - 03 - Batman Annual 15 (1991)

EW 1991 - Armageddon 2001 - 04 - JLA (1987) Annual 005

EW 1991 - Armageddon 2001 - 05 - Hawk & Dove v3 Annual 2

EW 1991 - Armageddon 2001 - 06 - Hawkworld Annual #02

EW 1991 - Armageddon 2001 - 07 - Flash v2 Annual 04

EW 1991 - Armageddon 2001 - 08 - Action Comics (1938) Annual 03 - 1991

EW 1991 - Armageddon 2001 - 09 - L.E.G.I.O.N. '91 Annual 02

EW 1991 - Armageddon 2001 - 10 - New Titans Annual 07

EW 1991 - Armageddon 2001 - 11 - Adventures of Superman (1987) Annual 03

EW 1991 - Armageddon 2001 - 12 - Detective Comics (1937) Annual 04

EW 1991 - Armageddon 2001 - 13 - Justice League Europe (1989) Annual 02

EW 1991 - Armageddon 2001 - 14 - Armageddon 2001 2

EW 1991 - Armageddon 2001 - 15 - The Alien Agenda 01

EW 1991 - Armageddon 2001 - 16 - The Alien Agenda 02

EW 1991 - Armageddon 2001 - 17 - The Alien Agenda 03

EW 1991 - Armageddon 2001 - 18 - The Alien Agenda 04

EW 1991 - Batman - Holy Terror

EW 1991 - Batman - Master of the Future (Sequel to Gotham by Gaslight)

EW 1991 - Batman - Red Rain

EW 1991 - Batman vs Predator 01

EW 1991 - Batman vs Predator 02

EW 1991 - Batman vs Predator 03

EW 1992 - Armageddon Inferno 01

EW 1992 - Armageddon Inferno 02

EW 1992 - Armageddon Inferno 03

EW 1992 - Armageddon Inferno 04

EW 1992 - Batman - The Blue, The Grey and the Bat

EW 1992 - Batman and Spawn

EW 1992 - Batman vs Judge Dredd - Judgement On Gotham

EW 1992 - Robin 3000 1

EW 1992 - Robin 3000 2

EW 1993 - Batman & Houdini - The Devil's Workshop

EW 1993 - Batman - Dark Joker - The Wild

EW 1993 - Batman - Grendel 1 Devil's Riddle

EW 1993 - Batman - Grendel 2 Devil's Masque

EW 1993 - Kamandi - At Earth's End 01

EW 1993 - Kamandi - At Earth's End 02

EW 1993 - Kamandi - At Earth's End 03

EW 1993 - Kamandi - At Earth's End 04

EW 1993 - Kamandi - At Earth's End 05

EW 1993 - Kamandi - At Earth's End 06

EW 1993 - Superman Batman - Speeding Bullets

EW 1993 - The Golden Age 1

EW 1993 - The Golden Age 2

EW 1993 - The Golden Age 3

EW 1993 - The Golden Age 4

EW 1994 - Adventures of Superman Annual 6 -The Super Seven Part 1

EW 1994 - Batman & Spawn - War Devil

EW 1994 - Batman - Batman Annual 18 - Black Masterpiece

EW 1994 - Batman - Bloodstorm

EW 1994 - Batman - Castle of the Bat

EW 1994 - Batman - Detective Annual 07

EW 1994 - Batman - In Darkest Knight

EW 1994 - Batman vs The Punisher

EW 1994 - Batman-Punisher - Lake Of Fire

EW 1994 - Catwoman Annual 01 - The Last Man

EW 1994 - Deathstroke The Terminator Annual 03

EW 1994 - Flash Annual 07 - The Barry Allen Story

EW 1994 - Green Lantern Annual 03

EW 1994 - JLA Annual 8  - The Once And Future League

EW 1994 - Justice League International Annual 5 - No Rules To Follow

EW 1994 - L.E.G.I.O.N. Annual 05 - The Man from Legion '007

EW 1994 - Legends of The Dark Knight Annual 4 - Citizen Wayne

EW 1994 - Legion of Super-Heroes Annual 05 - Long Road Home

EW 1994 - Legionnaires Annual 01 - Castles in the Air

EW 1994 - Lobo Annual 02 - A Fistful of Bastiches

EW 1994 - New Titans Annual - Facets

EW 1994 - New Titans Annual 10 - Facets

EW 1994 - Punisher-Batman - Deadly Knights

EW 1994 - Robin Annual 03 - the Narrow Path

EW 1994 - Shadow Of The Bat Annual - The Tyrant

EW 1994 - Steel Annual 01 - Crucible of Freedom

EW 1994 - Superboy Annual 1 The Super Seven Part 2

EW 1994 - Superman - Action Comics Annual 06

EW 1994 - Superman - Superman Annual 06 - The Feral Man of Steel

EW 1994 - Superman Man of Steel Annual 03 - Unforgiven

EW 1994 - Team Titans Annual 02

EW 1995 - Batman & Manbat - The Subterraneans 1

EW 1995 - Batman & Manbat - The Subterraneans 2

EW 1995 - Batman & Manbat - The Subterraneans 3

EW 1995 - Batman - Brotherhood of the Bat

EW 1995 - Batman - Knight Gallery

EW 1995 - Batman - Mitefall

EW 1995 - Batman vs Predator II 01

EW 1995 - Batman vs Predator II 02

EW 1995 - Batman vs Predator II 03

EW 1995 - Batman vs Predator II 04

EW 1995 - Darkseid vs Galactus

EW 1995 - Green Lantern and Silver Surfer - Unholy Alliances

EW 1995 - Green Lantern vs Silver Surfer

EW 1995 - Spider-Man-Batman - Disordered Minds

EW 1995 - Superman & Batman - Doom Link

EW 1995 - Superman - At Earth's End 001

EW 1995 - Superman - Kal

EW 1995 - Superman vs Aliens 01

EW 1995 - Superman vs Aliens 02

EW 1995 - Superman vs Aliens 03

EW 1996 - Batman & Captain America

EW 1996 - Batman - Dark Allegiances

EW 1996 - Batman - Grendel Book 1 Devil's Bones

EW 1996 - Batman - Grendel Book 2 Devil's Dance

EW 1996 - Batman - Scar of the bat

EW 1996 - DC vs Marvel (1996) 1

EW 1996 - DC vs Marvel (1996) 2

EW 1996 - DC vs Marvel (1996) 3

EW 1996 - DC vs Marvel (1996) 4

EW 1996 - DC vs Marvel (1996) Free Preview

EW 1996 - DC-Marvel All Access (1996) 1 - Superman & Spider-Man

EW 1996 - DC-Marvel All Access (1996) 2 - Jubilee and Robin

EW 1996 - DC-Marvel All Access (1996) 3 - Batman & Dr Strange

EW 1996 - DC-Marvel All Access (1996) 4 - X-Men & JLA

EW 1996 - Dead Worlds - Action Comics (1938) Annual 08 - 1996

EW 1996 - Dead Worlds - Adventures of Superman (1987) Annual 08 (1996)

EW 1996 - Dead Worlds - Aquaman (1994) Annual 02

EW 1996 - Dead Worlds - Azrael Annual 02 - 1996

EW 1996 - Dead Worlds - Batman - Legends of the Dark Knight (1992) Annual  6

EW 1996 - Dead Worlds - Batman - Shadow of the Bat Annual 004

EW 1996 - Dead Worlds - Batman Annual 20 (1996)

EW 1996 - Dead Worlds - Catwoman (1993) Annual 03 - Legends of the Dead Earth

EW 1996 - Dead Worlds - Detective Comics (1937) Annual 09

EW 1996 - Dead Worlds - Flash v2 Annual 09

EW 1996 - Dead Worlds - Green Lantern Annual 05 - 1996 - Legends of the Dead Earth

EW 1996 - Dead Worlds - Guy Gardner Warrior (1994) Annual 02 - 1996

EW 1996 - Dead Worlds - Impulse Annual 1996 - 01

EW 1996 - Dead Worlds - JLA (1987) Annual 010

EW 1996 - Dead Worlds - Legion of Super-Heroes v4 Annual 7

EW 1996 - Dead Worlds - Legionnaires (1993) Annual 03

EW 1996 - Dead Worlds - Power of Shazam (1995) Ann 001

EW 1996 - Dead Worlds - Robin Annual 05

EW 1996 - Dead Worlds - Sovereign Seven Annual 2

EW 1996 - Dead Worlds - Starman (1994) 019a - Ann 001 (1996)

EW 1996 - Dead Worlds - Superboy (1994) (Clone) Annual 03

EW 1996 - Dead Worlds - Supergirl (1996) Annual 01 1996

EW 1996 - Dead Worlds - Superman (1987) Annual 08

EW 1996 - Dead Worlds - Superman - The Man of Steel (1991) Annual 005

EW 1996 - Dead Worlds - Wonder Woman (1987) v2 Ann 005

EW 1996 - JLA - League of Justice 1

EW 1996 - JLA - League of Justice 2

EW 1996 - Kingdom Come TPB

EW 1996 - Silver Surfer-Superman - Pop

EW 1996 - Superman vs Silver Surfer

EW 1996 - Superman's Metropolis Part 1

EW 1996 - Superman's Metropolis Part 2 - Batman - Nosferatu

EW 1996 - Superman's Metropolis Part 3 - Wonder Woman - Blue Amazon

EW 1996 - The Dark Knight Returns Book 0 - Introduction

EW 1996 - The Dark Knight Returns Book 1 - The Dark Knight Returns

EW 1996 - The Dark Knight Returns Book 2 - The Dark Knight Triumphant

EW 1996 - The Dark Knight Returns Book 3 - Hunt The Dark Knight

EW 1996 - The Dark Knight Returns Book 4 - The Dark Knight Falls

EW 1997 - Batman - Dark Knight Dynasty

EW 1997 - Batman - Masque

EW 1997 - Batman - Thrillkiller

EW 1997 - Batman vs Predator III 01

EW 1997 - Batman vs Predator III 02

EW 1997 - Batman vs Predator III 03

EW 1997 - Batman vs Predator III 04

EW 1997 - Batman Vs. Aliens 01

EW 1997 - Batman Vs. Aliens 02

EW 1997 - Batman-Spider-Man - New Age Dawning

EW 1997 - Daredevil & Batman - Eye For An Eye

EW 1997 - Elseworld's Finest 001

EW 1997 - Elseworld's Finest 002

EW 1997 - JLA - Justice Riders

EW 1997 - Kingdom Come 0

EW 1997 - Kingdom Come 1

EW 1997 - Kingdom Come 2

EW 1997 - Kingdom Come 3

EW 1997 - Kingdom Come 4

EW 1997 - Kingdom Come 5

EW 1997 - Kingdom Come Epilogue

EW 1997 - Kingdom Come TPB

EW 1997 - Superman - The Kents 01

EW 1997 - Superman - The Kents 02

EW 1997 - Superman - The Kents 03

EW 1997 - Superman - The Kents 04

EW 1997 - Superman - The Kents 05

EW 1997 - Superman - The Kents 06

EW 1997 - Superman - The Kents 07

EW 1997 - Superman - The Kents 08

EW 1997 - Superman - The Kents 09

EW 1997 - Superman - The Kents 10

EW 1997 - Superman - The Kents 11

EW 1997 - Superman - The Kents 12

EW 1997 - Superman - Wonder Woman - Whom Gods Destroy 001

EW 1997 - Superman - Wonder Woman - Whom Gods Destroy 002

EW 1997 - Superman - Wonder Woman - Whom Gods Destroy 003

EW 1997 - Superman - Wonder Woman - Whom Gods Destroy 004

EW 1997 - Superman's Metropolis

EW 1997 - Titans - Scissors, Paper, Stone

EW 1997 - Wonder Woman - Amazonia

EW 1997 -Superman - Wonder Woman - Whom Gods Destroy 001

EW 1997 -Superman - Wonder Woman - Whom Gods Destroy 002

EW 1997 -Superman - Wonder Woman - Whom Gods Destroy 003

EW 1997 -Superman - Wonder Woman - Whom Gods Destroy 004

EW 1998 - Batman - Crimson Mist

EW 1998 - Batman - I Joker

EW 1998 - Batman - Judge Dredd - Die Laughing Book 1

EW 1998 - Batman - Judge Dredd - Die Laughing Book 2

EW 1998 - Batman - Other Realms - Destiny - Legends of the Dark Knight (1989) 035

EW 1998 - Batman - Other Realms - Destiny - Legends of the Dark Knight (1989) 036

EW 1998 - Batman - Other Realms - The Sleeping - Batman Legends of the Dark Knight (1992) 076

EW 1998 - Batman - Other Realms - The Sleeping - Batman Legends of the Dark Knight (1992) 077

EW 1998 - Batman - Other Realms - The Sleeping - Batman Legends of the Dark Knight (1992) 078

EW 1998 - Batman - The Batman Chronicles 11

EW 1998 - Batman - Thrillkiller

EW 1998 - Batman - Two Faces

EW 1998 - DCP Archive Edition - The Complete One Million Vol.01

EW 1998 - DCP Archive Edition - The Complete One Million Vol.02

EW 1998 - DCP Archive Edition - The Complete One Million Vol.03

EW 1998 - Elseworld's Finest - Supergirl & Batgirl

EW 1998 - JLA - The Nail 1

EW 1998 - JLA - The Nail 2

EW 1998 - JLA - The Nail 3

EW 1998 - Superman - A Nation Divided

EW 1998 - Superman - Distant Fires 01

EW 1998 - Superman - The Dark Side 001

EW 1999 - Batman  - Crimson Mist

EW 1999 - Batman - Dark Knight of the Round Table 001

EW 1999 - Batman - Dark Knight of the Round Table 002

EW 1999 - Batman - Nosferatu

EW 1999 - Batman - Reign of Terror

EW 1999 - Batman - Tarzan - Claws Of The Cat-woman 001

EW 1999 - Batman - Tarzan - Claws Of The Cat-woman 002

EW 1999 - Batman - Tarzan - Claws Of The Cat-woman 003

EW 1999 - Batman - Tarzan - Claws Of The Cat-woman 004

EW 1999 - Batman Hellboy Starman 1

EW 1999 - Batman Hellboy Starman 2

EW 1999 - Book of the Dead 1

EW 1999 - Book of the Dead 2

EW 1999 - Catwoman - Guardian of Gotham 1

EW 1999 - Catwoman - Guardian of Gotham 2

EW 1999 - Conjurors - 01

EW 1999 - Conjurors - 02

EW 1999 - Conjurors - 03

EW 1999 - Elseworlds 80-Page Giant 1

EW 1999 - Flash - Flashpoint 1

EW 1999 - Flash - Flashpoint 2

EW 1999 - Flash - Flashpoint 3

EW 1999 - Hulk vs Superman

EW 1999 - Superman - A Nation Divided

EW 1999 - Superman - Batman - Generations 001

EW 1999 - Superman - Batman - Generations 002

EW 1999 - Superman - Batman - Generations 003

EW 1999 - Superman - Batman - Generations 004

EW 1999 - Superman - King Of The World

EW 1999 - Superman - Son Of Superman

EW 1999 - Superman - Superman Inc

EW 1999 - Superman - The Superman Monster

EW 1999 - Superman - War of the Worlds

EW 1999 - Superman vs Fantastic Four

EW 1999 - Superman vs Terminator 01

EW 1999 - Superman vs Terminator 02

EW 1999 - Superman vs Terminator 03

EW 1999 - Superman vs Terminator 04

EW 1999 - Superman-Fantastic Four - The Infinite Destruction

EW 1999 - The Darkness - Batman

EW 1999 - The Kingdom 00 - Prologue - Gog

EW 1999 - The Kingdom 001

EW 1999 - The Kingdom 002

EW 1999 - The Kingdom 01 - The Kingdom 01

EW 1999 - The Kingdom 02 - Kid Flash

EW 1999 - The Kingdom 03 - Son Of The Bat

EW 1999 - The Kingdom 04 - Nightstar

EW 1999 - The Kingdom 05 - Offspring

EW 1999 - The Kingdom 06 - Planet Krypton

EW 1999 - The Kingdom 07 - The Kingdom 02

EW 2000 - Batman & Daredevil - King of New York

EW 2000 - Batman & Demon - A Tragedy

EW 2000 - Batman - Batman of Arkham

EW 2000 - Batman - Haunted Gotham 01

EW 2000 - Batman - Haunted Gotham 02

EW 2000 - Batman - Haunted Gotham 03

EW 2000 - Batman - Haunted Gotham 04

EW 2000 - Batman - The Batman Chronicles 21

EW 2000 - Batman - The Doom that Came to Gotham 1

EW 2000 - Batman - The Doom that Came to Gotham 2

EW 2000 - Batman - The Doom that Came to Gotham 3

EW 2000 - Batman vs Lobo

EW 2000 - Green Lantern vs Aliens 01

EW 2000 - Green Lantern vs Aliens 02

EW 2000 - Green Lantern vs Aliens 03

EW 2000 - Green Lantern vs Aliens 04

EW 2000 - JLA - Act of God 1

EW 2000 - JLA - Act of God 2

EW 2000 - JLA - Act of God 3

EW 2000 - JLA - Created Equal 1

EW 2000 - JLA - Created Equal 2

EW 2000 - JLA - Witchblade

EW 2000 - JLA- Secret Society of SuperHeroes 1

EW 2000 - JLA- Secret Society of SuperHeroes 2

EW 2000 - JSA - The Liberty File 1

EW 2000 - JSA - The Liberty File 2

EW 2000 - Realworlds  - Batman (2000)

EW 2000 - Realworlds  - Justice League Of America (2000)

EW 2000 - Realworlds  - Superman (2000)

EW 2000 - Realworlds  - Wonder Woman (2000)

EW 2000 - Superboy's Legion 001

EW 2000 - Superboy's Legion 002

EW 2000 - Superman & Batman - World's Funnest

EW 2000 - Superman - Last Son of Earth 001

EW 2000 - Superman - Last Son of Earth 002

EW 2000 - Superman vs Predator 01

EW 2000 - Superman vs Predator 02

EW 2000 - Superman vs Predator 03

EW 2001 - Batman - Gotham Noir

EW 2001 - Batman - Hollywood Knight 01

EW 2001 - Batman - Hollywood Knight 02

EW 2001 - Batman - Hollywood Knight 03

EW 2001 - Batman - League of Batmen 01

EW 2001 - Batman - League of Batmen 02

EW 2001 - Bizarro Comics (2001)

EW 2001 - Bizarro Comics 01

EW 2001 - Green Lantern - 1001 Emerald Nights

EW 2001 - Green Lantern - Dragon Lord 001

EW 2001 - Green Lantern - Dragon Lord 002

EW 2001 - Green Lantern - Dragon Lord 003

EW 2001 - JLA - Riddle of the Beast

EW 2001 - Justice League vs Predator

EW 2001 - Supergirl - Wings

EW 2001 - Superman & Bugs Bunny 1

EW 2001 - Superman & Bugs Bunny 2

EW 2001 - Superman & Bugs Bunny 3

EW 2001 - Superman & Bugs Bunny 4

EW 2001 - Superman - Batman - Generations II 001

EW 2001 - Superman - Batman - Generations II 002

EW 2001 - Superman - Batman - Generations II 003

EW 2001 - Superman - Batman - Generations II 004

EW 2001 - Superman - Tarzan - Sons Of The Jungle 001

EW 2001 - Superman - Tarzan - Sons Of The Jungle 002

EW 2001 - Superman - Tarzan - Sons Of The Jungle 003

EW 2002 - Batman - Nine Lives

EW 2002 - Green Lantern - Evil's Might 01

EW 2002 - Green Lantern - Evil's Might 02

EW 2002 - Green Lantern - Evil's Might 03

EW 2002 - JLA - Destiny 001

EW 2002 - JLA - Destiny 002

EW 2002 - JLA - Destiny 003

EW 2002 - JLA - Destiny 004

EW 2002 - JLA - Island of Dr Moreau

EW 2002 - JLA - Shogun of Steel

EW 2002 - Planetary - JLA - TerraOcculta

EW 2002 - Superman vs. Dracula

EW 2002 - The Dark Knight Strikes Again 01

EW 2002 - The Dark Knight Strikes Again 02

EW 2002 - The Dark Knight Strikes Again 03

EW 2002 - The Dark Knight Strikes Again TPB Extras

EW 2003 - Batman - Detective Comics #27

EW 2003 - Batman - Nevermore 1

EW 2003 - Batman - Nevermore 2

EW 2003 - Batman - Nevermore 3

EW 2003 - Batman - Nevermore 4

EW 2003 - Batman - Nevermore 5

EW 2003 - Batman - The Golden Streets Of Gotham

EW 2003 - JLA - Age of Wonder 1

EW 2003 - JLA - Age of Wonder 2

EW 2003 - JLA Avengers (2003) 1 of 4

EW 2003 - JLA Avengers (2003) 2 of 4

EW 2003 - JLA Avengers (2003) 3 of 4

EW 2003 - JLA Avengers (2003) 4 of 4

EW 2003 - JLA- Secret Society of SuperHeroes 1

EW 2003 - JLA- Secret Society of SuperHeroes 2

EW 2003 - JSA - The Liberty File 001

EW 2003 - JSA - The Liberty File 002

EW 2003 - JSA - The Unholy Three 01

EW 2003 - JSA - The Unholy Three 02

EW 2003 - Planetary & Batman

EW 2003 - Superman - Batman - Generations III 001

EW 2003 - Superman - Batman - Generations III 002

EW 2003 - Superman - Batman - Generations III 003

EW 2003 - Superman - Batman - Generations III 004

EW 2003 - Superman - Batman - Generations III 005

EW 2003 - Superman - Batman - Generations III 006

EW 2003 - Superman - Batman - Generations III 007

EW 2003 - Superman - Batman - Generations III 008

EW 2003 - Superman - Batman - Generations III 009

EW 2003 - Superman - Batman - Generations III 010

EW 2003 - Superman - Batman - Generations III 011

EW 2003 - Superman - Batman - Generations III 012

EW 2003 - Superman - Blood of My Ancestors

EW 2003 - Superman - Last Stand On Krypton 001

EW 2003 - Superman - Red Son 001

EW 2003 - Superman - Red Son 002

EW 2003 - Superman - Red Son 003

EW 2003 - Wonder Woman - Blue Amazon

EW 2003 -Superman - Batman - Generations III 001

EW 2003 -Superman - Batman - Generations III 002

EW 2003 -Superman - Batman - Generations III 003

EW 2003 -Superman - Batman - Generations III 004

EW 2003 -Superman - Batman - Generations III 005

EW 2003 -Superman - Batman - Generations III 006

EW 2003 -Superman - Batman - Generations III 007

EW 2003 -Superman - Batman - Generations III 008

EW 2003 -Superman - Batman - Generations III 009

EW 2003 -Superman - Batman - Generations III 010

EW 2003 -Superman - Batman - Generations III 011

EW 2003 -Superman - Batman - Generations III 012

EW 2004 - Batman - The Order of Beasts

EW 2004 - JLA - Another Nail 001 [2004]

EW 2004 - JLA - Another Nail 002 [2004]

EW 2004 - JLA - Another Nail 003 [2004]

EW 2004 - Planetary - Crossing Worlds

EW 2004 - Superman - Secret Identity 1

EW 2004 - Superman - Secret Identity 2

EW 2004 - Superman - Secret Identity 3

EW 2004 - Superman - Secret Identity 4

EW 2004 - Superman - True Brit

EW 2005 - Bizarro World

EW 2005 - JLA - Cyber Force

EW 2005 - The Darkness - Superman 01

EW 2005 - The Darkness - Superman 02

EW 2006 - Batman - Year 100 01

EW 2006 - Batman - Year 100 02

EW 2006 - Batman - Year 100 03

EW 2006 - Batman - Year 100 04

EW 2007 - Batman vs Lobo - Deadly Serious 01

EW 2007 - DCU Infinite Holiday Special

EW 2007 - Superman & Batman vs Aliens & Predator 01

EW 2007 - Superman & Batman vs Aliens & Predator 02

EW 2008 - Superman and Batman vs Vampires and Werewolves 01

EW 2008 - Superman and Batman vs Vampires and Werewolves 02

EW 2008 - Superman and Batman vs Vampires and Werewolves 03

EW 2008 - Superman and Batman vs Vampires and Werewolves 04

EW 2008 - Superman and Batman vs Vampires and Werewolves 05

EW 2008 - Superman and Batman vs Vampires and Werewolves 06

EW 2008 - Teen Titans Lost Annual 01 (2008)

DC Imaginary Stories

I've liked the odd "DC Imaginary Story", which were a periodic DC gimmick to create "out of continuity" stories, primarily for the Superman family.  These were often "Superman marries Lois"-type stories, where the writers can play with the key characters without messing up the "real universe".

Lois Lane (1958) #19 listed "#1 in an Imaginary Series" blurb on the cover.  "Whatever Happened to the Man of Tomorrow?" was a two part story in Superman (1939) #423 and Action Comics (1938) #583, which marked the end of the "Silver Age or Bronze Age" Superman, pending the John Byrne re-built and re-launched Superman in 1986, which featured a re-numbered Superman #1 after the Man of Steel (1986) six-issue mini-series which re-defined Superman for the 1980's and clarified and unified 50 years of continuity into a unified single history.

Marvel formalized the idea with their "What If" series, which created breakpoints in the Marvel Universe where thing diverged from what was portrayed in the regular stories. For example, "What If Spider-Man Joined the Fantastic Four" (What If (1977) #1)  diverged from Amazing Spider-Man (1963) #1, when Spider-Man asked to join the FF and was rebuffed when they told him that they weren't paid for their FF membership.  The What If version had them asking Spider-Man to stay and given all FF members salaries (FF became "Fantastic Five").

DC also more formally set about "out of continuity  stories with Elseworlds, which started with "Gotham by Gaslight (1989)" a Batman story, and continued through all main DC 1991 annuals, and onward. I'll publish a list of these separately.

Both Marvel and DC periodically engaged in cross-over storylines (e.g. Superman and Spider-Man, or Batman and Daredevil), which can be considered "Elseworlds" or "What Ifs", though not labelled as such.

I wasn't able to find a complete listing of DC Imaginary Stories, so have compiled from various message posts on the topic, and occasional lists and references in the comics themselves.  I doubt this is a complete listing, so additions are welcome.

I've sorted by date of publication, and the full reference to the comic book series (e.g. Imaginary 1959 - Action Comics (1938) 259   - refers to issue #259 of Action Comics, which began publication in 1938 - the actual issue was published in 1959).  This sorts the issues in mostly chronological order, though no attempt was made to order by months within years, as most stories were "stand-alone" anyway and didn't require that level of organization.

I've included the "Super Sons" stories of the mid-1970's World Finest Comics, as I remember these, and they tend to mirror the earlier Imaginary Stories where one of Superman or Batman were married with kids - I don't think they were acknowledged as "Imaginary Stories" when first published.

Imaginary 1946 - Captain Marvel Adventures (1941) 66.cbr- 'Captain Marvel and the Atomic War'

Imaginary 1958 - Jimmy Olsen (1954) 029.cbz- 'The Superman Book that Couldn't Be Finished'

Imaginary 1958 - Superman (1939) 125.cbz- 'Lois Lane's Super Dream'

Imaginary 1959 - Action Comics (1938) 259.cbr- 'The Revenge of Luthor'

Imaginary 1959 - Batman (1940) 127.cbz- 'The Second Life of Batman'

Imaginary 1959 - Superman (1939) 122.cbr- 'Superman in the White House'

Imaginary 1960 - Action Comics (1938) 270.cbr- 'Superman's Old Age'

Imaginary 1960 - Batman (1940) 131.cbz- 'The Second Batman and Robin Team'

Imaginary 1960 - Batman (1940) 135.cbz- 'The Return of the Second Batman and Robin Team'

Imaginary 1960 - Lois Lane (1958) 019.cbz- 'Mr. and Mrs. Clark (Superman) Kent'

Imaginary 1960 - Lois Lane (1958) 020.cbr- 'Lois Lane's Super Daughter'

Imaginary 1960 - Superboy (1949) 078 .cbz- 'Claire Kent - Alias Super-Sister'

Imaginary 1960 - Superman (1939) 132.cbr- 'Superman's Other Life'

Imaginary 1960 - Superman (1939) 137.cbz- 'The Young Super-Bully'

Imaginary 1961 - Action Comics (1938) 275.cbr- 'Ma and Pa Kent Adopt Super-Girl'

Imaginary 1961 - Action Comics (1938) 279.cbr- 'The Super-Rivals'

Imaginary 1961 - Jimmy Olsen (1954) 056.cbz- 'The Son of Jimmy Olsen'

Imaginary 1961 - Jimmy Olsen (1954) 057.cbz- 'Jimmy Olsen Marries Super-Girl'

Imaginary 1961 - Lois Lane (1958) 023.cbr- 'The Wife of Superman'

Imaginary 1961 - Lois Lane (1958) 025.cbr- 'Lois Lane and Superman - Newlyweds'

Imaginary 1961 - Lois Lane (1958) 026.cbr- 'The Day Superman Married Lana Lang'

Imaginary 1961 - Superman (1939) 149.cbr- 'The Death of Superman'

Imaginary 1962 - Adventure Comics (1938) 299 .cbz- 'The Unwanted Superbaby'

Imaginary 1962 - Batman (1940) 145.cbr- 'The Son of the Joker'

Imaginary 1962 - Batman (1940) 151.cbr- 'Batman's New Secret Identity'

Imaginary 1962 - Flash (1959) 128.CBZ- 'The Case of the Real-Gone Flash'

Imaginary 1962 - Superboy (1949) 095.cbz- 'The Super-Family from Krypton'

Imaginary 1963 - Superman (1939) 162.cbr- 'The Amazing Story of Superman-Red and Superman-Blue'

Imaginary 1964 - 80 Page Giant 01 (Superman) (B&W pp replaced).cbz- 'Reprints of serveral Imaginary Stories'

Imaginary 1964 - 80 Page Giant 05 (Batman) (1964).cbz- 'Reprints of serveral Imaginary Stories'

Imaginary 1964 - Lois Lane (1958) 051.cbr- 'The Three Wives of Superman'

Imaginary 1964 - Superman (1939) 166.cbr- 'The Fantastic Story of Superman's Sons'

Imaginary 1965 - Superboy (1949) 124.cbz- 'The Toughest Kid in Smallville'

Imaginary 1965 - Superman (1939) 175.cbr- 'Clark Kent's Brother'

Imaginary 1965 - Worlds Finest Comics (1941) 153.cbr- 'The Clash of Cape and Cowl'

Imaginary 1965 - Worlds Finest Comics (1941) 154.cbr- 'The Sons of Superman and Batman'

Imaginary 1966 - Worlds Finest Comics (1941) 157.cbr- 'The Abominable Brats'

Imaginary 1967 - Superman (1939) 200.cbr- 'Super-Brother against Super-Brother'

Imaginary 1967 - Worlds Finest Comics (1941) 172.cbz- 'Superman and Batman - Brothers'

Imaginary 1969 - Jimmy Olsen (1954) 117.cbz- 'The Son of Jimmy Olsen'

Imaginary 1969 - Lois Lane (1958) 091.cbr- 'Love is Blind'

Imaginary 1969 - Worlds Finest Comics (1941) 184.cbz- 'Robin's Revenge'

Imaginary 1970 - Superman (1939) 230.cbr- 'Killer Kent vs. Super Luthor'

Imaginary 1972 - Lois Lane (1958) 125.cbr- 'Death Rides the Wheels'

Imaginary 1972 - Lois Lane (1958) 126.cbr- 'The Brain Busters'

Imaginary 1972 - Super- Sons - Worlds Finest Comics (1941) 215.cbz- 'Saga of the Super-Sons'

Imaginary 1973 - Super- Sons - Worlds Finest Comics (1941) 216.cbr- 'Little Town with a Big Secret'

Imaginary 1974 - Super- Sons - Worlds Finest Comics (1941) 221.cbr- 'Cry not for my Forsaken Son'

Imaginary 1974 - Super- Sons - Worlds Finest Comics (1941) 222.cbr- 'Evil in Paradise'

Imaginary 1974 - Super- Sons - Worlds Finest Comics (1941) 224.cbr- 'The Shocking Switch of the Super-Sons'

Imaginary 1975 - Super- Sons - Worlds Finest Comics (1941) 228.cbr- 'Crown for a New Batman'

Imaginary 1975 - Super- Sons - Worlds Finest Comics (1941) 230.cbr- 'The Girl whom Time Forgot'

Imaginary 1975 - Super- Sons - Worlds Finest Comics (1941) 231.cbr- 'Hero is a Dirty Name'

Imaginary 1975 - Super- Sons - Worlds Finest Comics (1941) 233.cbr- 'World Without Men'

Imaginary 1976 - Super- Sons - Worlds Finest Comics (1941) 238.cbr- 'The Angel with a Dirty Name'

Imaginary 1976 - Super- Sons - Worlds Finest Comics (1941) 242.cbr- 'Town of the Timeless Killers'

Imaginary 1976 - Superman (1939) 300.cbr- 'Superman 2001'

Imaginary 1978 - Batman (1940) 300.cbr- 'The Last Batman Story'

Imaginary 1978 - Superman Family (1974) 192.cbr- 'My Father Superman'

Imaginary 1986a - Superman (1939) 423.cbz- 'Whatever Happened to the Man of Tomorrow - pt 1'

Imaginary 1986b - Action Comics (1938) 583.cbr- 'Whatever Happened to the Man of Tomorrow - pt 2'