Want list (loose carts preferred).

2600:

Air Raid
Artillery Duel/Spike's Peak
Assault
Asterix
Atlantis II
Bachelor Party/Gigolo
Bachelorette Party/Burning Desire
Beat 'Em & Eat 'Em/Lady in Wading
Berenstain Bears
Birthday Mania
BMX Airmaster (Atari version)
Busy Police
Cakewalk
Cannon Man
Chuck Norris Superkicks
Chuck Norris Superkicks/Ghost Manor
Chuck Norris Superkicks/Spike's Peak
Condor Attack
Cosmic Corridor
Custer's Revenge
Double Dragon
Eli's Ladder
Espial
Gamma-Attack
Gauntlet
Glacier Patrol
Great Escape
Halloween
Harbor Escape
Inca Gold
James Bond 007
Jungle Fever/Knight on the Town
Lochjaw
MagiCard
Malagai
Mangia
Marauder
Motocross Racer
MotoRodeo
Night Stalker
Obelix
Out of Control
Pepsi Invaders
Polaris
Radar
Radar Lock
River Patrol
Sea Hawk (Froggo)
Sea Hawk (Zellers)
Scuba Diver
Sea Hunt
Sir Lancelot
Solar Storm
Space Tunnel
Spike's Peak
Springer
Stronghold
Stuntman
Tank Brigade
Task Force
Texas Chainsaw Massacre
The Music Machine
Tomarc the Barbarian/Motocross Racer
Track & Field
Universal Chaos
Up n' Down
Video Life
Wall Defender
X-Man
Z-Tack

7800:

Basketbrawl
Ikari Warriors
Kung Fu Master
Mean 17 Ultimate Golf
Pete Rose Baseball
Rampage
Summer Games
Super Skateboardin'
Tank Command

Atari 8bit:

Alien Garden	Epyx
Alpha Shield	Sirius
Anteater	Romox
Assault Force 3-D	Supra Corp
Attack at EP-CYG-4	Romox
Attack of the Mutant Camels	HES
Ballblazer
Beamrider	Activision
Captain Beeble	InHome Soft
Carnival Massacre	Thorn EMI
Chess	Parker Bros
Choplifter	Atari
Cloudburst	Dana
Coconotes	CBS Games
Cosmic Life	Spinnaker
Crime Buster	Atari
Crossbow	Atari
Dark Chambers	Atari
Decathlon (The Activision)	Activision
Diamond Mine	Roklan
Dreadnaught Factor, The	Activision
Embargo	Gebelli
Espial	Tigervision
Final Orbit	Sirius
Fort Apocalypse	Synapse
Gateway to Apshai	Epyx
Gold Mine	Spectravideo
Gridrunner	HES
Gyruss	Parker Bros
H.E.R.O.	Activision
Into the Eagle's Nest	Atari
Jawbreaker II	Sierra
K-Star Patrol	CBS Games
Karateka	Atari
Keystone Kapers	Activision
Major League Hockey	Thorn EMI
Mario Bros.	Atari
Megamania	Activision
Monster Maze	Epyx
Mr. TNT	HES
Pastfinder	Activision
Picnic Paranoia	Synapse
Pitfall II: The Lost Caverns	Activision
Pool 400	IDSI
Powerstar	Pandora
Princess and the Frog	Romox
Rack 'Em Up	Roklan
Sea Chase	Romox
Seafox	Broderbund
Silicon Warrior	Epyx
Soccer	Thorn EMI
Space Journey	Roklan
Space Shuttle: A Journey Into Space	Activision
Spark Bugs	Romox
Star Maze	Roklan
Story Machine	Spinnaker
Summer Games	Atari
Super Zaxxon	Sega
Survival of the Fittest	IDSI
Thunderfox	Atari
Typo	Romox
Typo Attack	Atari
Up 'n Down	Sega
Whiz Kid	Romox
Zone Ranger	Activision

C64:

C64 wants:

Adventure Creator - Spinnaker
Alien Sidestep - OEM/Mr. Comput
Amazing Maze - OEM/Mr. Comput
Astroblitz - Creative
B.C.'s Quest for Tires - Sierra
Beamrider - Activision
Block Hopper - Fantasy Softwar
Blue Print - Commodore
Bubble Burst - Spinnaker
Bug Crusher - OEM/Mr. Comput
Checkers - Yu-Can
Choplifter! / Lode Runner - Broderbund
Close Encounters of the Worst Kind - OEM/Mr. Comput
Clowns - Commodore
Cosmic Life - Spinnaker
Crisis Mountain - Creative
Decathlon (The Activision) - Activision
Diamond Mine - Roklan
Dot Gobbler - OEM/Mr. Comput
Dot Gobbler - Machine Lang
Dragonsden - Commodore
Espial - Tigervision
Falconian Invaders - TSI
Frog Master - Commodore
Gold Record Race - Maxion
Gorf - Commodore
Halftime Battlin' Bands - CBS Games
Jack Attack - Commodore
Jawbreaker - Sierra
Laser Cycles - TSI
Lazer Zone - Human Eng Soft
Lunar Leeper - Sierra
Mario's Brewery - OEM/Mr. Comput
Maze Man - TSI
Maze Master - Human Eng Soft
Moondust - Creative
Mr. Cool - Sierra
Mr. TNT - Human Eng Soft
Oil's Well - Sierra
Pipes - Creative
Pit, The - Human Eng Soft
Pitfall II: The Lost Caverns - Activision
Pitstop - Epyx
Princess and the Frog - Romox
Rack 'Em Up - Roklan
Ranch - Spinnaker
Sammy Lightfoot - Sierra
Save New York - Creative
Seafox - Broderbund
Serpentine - Broderbund
Solar Fox - Commodore
Space Ric-o-Shay - OEM/Mr. Comput
Spitball - Creative
Star Post - Commodore
Star Wars: The Arcade Game - Parker Bros
Super Smash - Commodore
Super Zaxxon - Sega
Tank Wars - OEM/Mr. Comput
Threshold - Sierra
Time Bound - CBS Games
Trashman - Creative
Tooter ÊÊÊÊÊÊActivision
Turbo Maze Man - TSI
Tyler's Dungeons - TSI
Ultrex Quadro Maze - TSI
Up 'n Down - Sega
Up For Grabs - Spinnaker
Viduzzles - Commodore
Viking Raider - Interphase
Zaxxon - Sega

Vic-20 wants:

A World at War - Handic
Alien Sidestep - OEM/Mr. Comput
Amazing Maze - OEM/Mr. Comput
Arachnoid - UMI
Baldor's Castle - Daedalus
Blackjack - OEM/Mr. Comput
Block Buster - OEM/Mr. Comput
Bug Crusher - OEM/Mr. Comput
Cat Burglar - OEM/Mr. Comput
Close Encounters of the Worst Kind - OEM/Mr. Comput
Crater Raider - Boone
Cyclon - Boone
Dancing Bear - Koala Tech
Dot Gobbler - OEM/Mr. Comput
Droids - TG Software
Firefighter Mario - OEM/Mr. Comput
Frogman - OEM/Mr. Comput
Ghost Manor / Spike's Peak - Xonox
Key Quest - Tymac
Mario's Brewery - OEM/Mr. Comput
Maze - Human Eng Soft -
Medieval Joust - Thorn EMI
Mosquito Infestation - Human Eng Soft
Motocross Racer - Xonox
Rally-X - Commodore
Robin Hood - Xonox
Satellite Patrol - Human Eng Soft
Sir Lancelot - Xonox
Space Ric-O-Shay - OEM/Mr. Comput
Space Snake - Handic
Speed/Bingo Math - Commodore
Squish 'Em - Sirius
Sub Chase - UMI
Tank Atak - Supersoft
Tank Wars - OEM/Mr. Comput
Topper - Romox
Witch Way - CDS