| Name | Description | Year | Manufacturer | Rom | Clone | Sample |
| coco_scii | Disto Super Controller II | | | | | |
| coco_ssc | CoCo S/SC PAK | | | | | |
| coco_stereo_composer | Speech Systems Stereo Composer | | | | | |
| coco_symphony_twelve | Speech Systems Symphony Twelve | | | | | |
| coco_t4426 | Terco CNC Programming Station 4426 multi cart | | | | | |
| coco_vhd_image | CoCo Virtual Hard Disk | | | | | |
| coco_wpk | CoCo WordPak | | | | | |
| coco_wpk2 | CoCo WordPak II | | | | | |
| coco_wpk2p | CoCo WordPak 2+ | | | | | |
| coco_wpkrs | CoCo WordPak RS | | | | | |
| coco2b | Color Computer 2B | 1985? | Tandy Radio Shack | coco | coco | |
| coco2bh | Color Computer 2B (HD6309) | 19?? | Tandy Radio Shack | coco | coco | |
| coco3 | Color Computer 3 (NTSC) | 1986 | Tandy Radio Shack | coco | coco | |
| coco3h | Color Computer 3 (NTSC; HD6309) | 19?? | Tandy Radio Shack | coco | coco | |
| coco3p | Color Computer 3 (PAL) | 1986 | Tandy Radio Shack | coco | coco | |
| cococart_slot | CoCo Cartridge Slot | | | | | |
| cocoh | Color Computer 1/2 (HD6309) | 19?? | Tandy Radio Shack | coco | coco | |
| cocoloco | Coco Loco (set 1) | 1981 | Petaco S.A. | | | |
| cocolocoa | Coco Loco (set 2) | 1981 | Recel S.A. | cocoloco | cocoloco | |
| cocolocob | Coco Loco (set 3) | 1981 | Petaco S.A. | cocoloco | cocoloco | |
| cocopak | CoCo Program PAK | | | | | |
| cocopak_banked | CoCo Program PAK (Banked) | | | | | |
| cocopakgmc | CoCo Games Master Cartridge | | | | | |
| cocopakmax | CoCo Max HI-RES input module | | | | | |
| cocopakram | Disto RAM Cartridge | | | | | |
| cocossc_sac | CoCo SSC Sound Activity Circuit | | | | | |
| codata | Codata | 1982 | Contel Codata Corporation | | | |
| code1d | Code One Dispatch Ver 1.21 (ver UAD) | 2000 | Konami | kviper | | |
| code1db | Code One Dispatch Ver 1.16 (ver UAB) | 2000 | Konami | code1d | code1d | |
| codemagik | Code Magik (Ver 5.5) / Super 7 (stealth game) | 198? | Voyageur de L'Espace Inc. | | | |
| coh1000a | Acclaim ZN-1 | 1995 | Acclaim | | | |
| coh1000c | Capcom ZN-1 | 1995 | Capcom | | | |
| coh1000t | Taito FX-1 | 1995 | Taito | | | |
| coh1000w | Time Warner ZN-1 | 1995 | Atari | | | |
| coh1001l | Atlus ZN-1 | 1995 | Atlus | | | |
| coh1002e | Eighting / Raizing ZN-1 | 1996 | Eighting / Raizing | | | |
| coh1002m | Tecmo TPS System | 1997 | Tecmo | | | |
| coh1002t | Taito G NET (COH-1002T) | 1999 | Taito | | | |
| coh1002v | Video System ZN-1 | 1996 | Video System Co. | | | |
| coh3002c | Capcom ZN-2 | 1997 | Capcom | | | |
| coh3002t | Taito G NET (COH-3002T) | 1998 | Taito | | | |
| coin_hopper | Coin Hopper | | | | | |
| coleco | ColecoVision (NTSC) | 1982 | Coleco | | | |
| coleco_activision | ColecoVision Activision Cartridge | | | | | |
| coleco_activision_256b | ColecoVision Activision Cartridge (256B EEPROM) | | | | | |
| coleco_activision_32k | ColecoVision Activision Cartridge (32K EEPROM) | | | | | |
| coleco_cartridge_port | ColecoVision cartridge port | | | | | |
| coleco_expansion | Colecovision Expansion Bus | | | | | |
| coleco_hand | ColecoVision Hand Controller | | | | | |
| coleco_sac | ColecoVision Super Action Controller | | | | | |
| coleco_sgm | Opcode Super Game Module | | | | | |
| colecofl | Colecovision Flashback | 2004 | AtGames | | | |
| colecop | ColecoVision (PAL) | 1983 | Coleco | coleco | coleco | |
| colecovision_control_port | ColecoVision control port | | | | | |
| colecovision_megacart | ColecoVision MegaCart | | | | | |
| colecovision_standard | ColecoVision standard cartridge | | | | | |
| colecovision_xin1 | ColecoVision X-in-1 cartridge | | | | | |
| colmns97 | Columns '97 (JET 961209 V1.000) | 1996 | Sega | stvbios | | |
| colony7 | Colony 7 (set 1) | 1981 | Taito | | | |
| colony7a | Colony 7 (set 2) | 1981 | Taito | colony7 | colony7 | |
| colorama | Colorama (P521, English) | 2000 | Coinmaster-Gaming, Ltd. | | | |
| coloramas | Colorama (P521 V13, Spanish) | 2000 | Coinmaster-Gaming, Ltd. | colorama | colorama | |
| colt | Colt (bootleg of N.Y. Captor) | 1986 | bootleg | nycaptor | nycaptor | |
| columbia | Columbia | 1982 | LTD | | | genpin |
| columbus | Columbus (set 1) | 2002? | Novotech | | | |
| columbusa | Columbus (set 2) | 2002? | Novotech | columbus | columbus | |
| columbusb | Columbus (set 3) | 2002? | Novotech | columbus | columbus | |
| columbusc | Columbus (set 4) | 2002? | Novotech | columbus | columbus | |
| columbusd | Columbus (set 5) | 2002? | Novotech | columbus | columbus | |
| columbuse | Columbus (set 6) | 2002? | Novotech | columbus | columbus | |
| columbusf | Columbus (set 7) | 2002? | Novotech | columbus | columbus | |
| column2j | Columns II: The Voyage Through Time (Japan) | 1990 | Sega | columns2 | columns2 | |
| columns | Columns (World) | 1990 | Sega | | | |
| columns2 | Columns II: The Voyage Through Time (World) | 1990 | Sega | | | |
| columnsj | Columns (Japan) | 1990 | Sega | columns | columns | |
| columnsu | Columns (US, cocktail, Rev A) | 1990 | Sega | columns | columns | |
| com5016_013 | COM5016-013 Dual BRG | | | | | |
| com5016_5 | COM5016-5 Dual BRG | | | | | |
| com52c50 | SMC COM52C50 TIC | | | | | |
| com8116 | COM8116 Dual BRG | | | | | |
| com8116_003 | COM8116-003 Dual BRG | | | | | |
| com8116_020 | COM8116-020 Dual BRG | | | | | |
| combat | Combat (version 3.0) | 1985 | Exidy | | | |
| combatsc | Combat School (joystick) | 1988 | Konami | | | |
| combatscb | Combat School (bootleg) | 1988 | bootleg (Datsu) | combatsc | combatsc | |
| combatscj | Combat School (Japan trackball) | 1987 | Konami | combatsc | combatsc | |
| combatsct | Combat School (trackball) | 1987 | Konami | combatsc | combatsc | |
| combh | Combat Hawk | 1987 | Sanritsu / Sega | | | |
| comdesk | Deskpro | 1984 | Compaq | ibm5150 | ibm5150 | |
| comebaby | Come On Baby | 2000 | ExPotato | | | |
| comeback | Come Back | 198? | Nondum / CIFA | | | |
| comet_l4 | Comet (L-4) | 1985 | Williams | comet_l5 | comet_l5 | genpin |
| comet_l5 | Comet (L-5) | 1985 | Williams | | | genpin |
| comg074 | Cal Omega - Game 7.4 (Gaming Poker, W.Export) | 1981 | Cal Omega Inc. | | | |
| comg076 | Cal Omega - Game 7.6 (Arcade Poker) | 1981 | Cal Omega Inc. | | | |
| comg079 | Cal Omega - Game 7.9 (Arcade Poker) | 1981 | Cal Omega Inc. | | | |
| comg080 | Cal Omega - Game 8.0 (Arcade Black Jack) | 1981 | Cal Omega Inc. | | | |
| comg094 | Cal Omega - Game 9.4 (Keno) | 1981 | Cal Omega Inc. | | | |
| comg107 | Cal Omega - Game 10.7c (Big Game) | 1982 | Cal Omega Inc. | | | |
| comg123 | Cal Omega - Game 12.3 (Ticket Poker) | 1982 | Cal Omega Inc. | | | |
| comg125 | Cal Omega - Game 12.5 (Bingo) | 1982 | Cal Omega Inc. | | | |
| comg127 | Cal Omega - Game 12.7 (Keno) | 1982 | Cal Omega Inc. | | | |
| comg128 | Cal Omega - Game 12.8 (Arcade Game) | 1982 | Cal Omega Inc. | | | |
| comg134 | Cal Omega - Game 13.4 (Nudge) | 1982 | Cal Omega Inc. | | | |
| comg145 | Cal Omega - Game 14.5 (Pixels) | 1982 | Cal Omega Inc. | | | |
| comg157 | Cal Omega - Game 15.7 (Double-Draw Poker) | 1983 | Cal Omega Inc. | | | |
| comg159 | Cal Omega - Game 15.9 (Wild Double-Up) | 1983 | Cal Omega Inc. | | | |
| comg164 | Cal Omega - Game 16.4 (Keno) | 1983 | Cal Omega Inc. | | | |
| comg168 | Cal Omega - Game 16.8 (Keno) | 1983 | Cal Omega Inc. | | | |
| comg170 | Cal Omega - Game 17.0 (Amusement Poker) | 1983 | Cal Omega Inc. | | | |
| comg172 | Cal Omega - Game 17.2 (Double Double Poker) | 1983 | Cal Omega Inc. | | | |
| comg175 | Cal Omega - Game 17.51 (Gaming Draw Poker, Sch 07-0T) | 1984 | Cal Omega / Casino Electronics Inc. | | | |
| comg176 | Cal Omega - Game 17.6 (Nudge) | 1982 | Cal Omega Inc. | | | |
| comg181 | Cal Omega - Game 18.1 (Nudge) | 1982 | Cal Omega Inc. | | | |
| comg183 | Cal Omega - Game 18.3 (Pixels) | 1983 | Cal Omega Inc. | | | |
| comg184 | Cal Omega - Game 18.4 (Pixels) | 1983 | Cal Omega Inc. | | | |
| comg185 | Cal Omega - Game 18.5 (Pixels) | 1983 | Cal Omega Inc. | | | |
| comg186 | Cal Omega - Game 18.6 (Pixels) | 1983 | Cal Omega Inc. | | | |
| comg187 | Cal Omega - Game 18.7 (Amusement Poker) | 1983 | Cal Omega Inc. | | | |
| comg204 | Cal Omega - Game 20.4 (Super Blackjack) | 1984 | Cal Omega Inc. | | | |
| comg208 | Cal Omega - Game 20.8 (Winner's Choice) | 1984 | Cal Omega Inc. | | | |
| comg214 | Cal Omega - Game 21.4 (Wild Double-Up Poker) | 1984 | Cal Omega Inc. | | | |
| comg227 | Cal Omega - Game 22.7 (Amusement Poker, d/d) | 1984 | Cal Omega Inc. | | | |
| comg230 | Cal Omega - Game 23.0 (FC Bingo (4-card)) | 1984 | Cal Omega Inc. | | | |
| comg236 | Cal Omega - Game 23.6 (Hotline) | 1984 | Cal Omega Inc. | | | |
| comg239 | Cal Omega - Game 23.9 (Gaming Draw Poker) | 1985 | Cal Omega / Casino Electronics Inc. | | | |
| comg240 | Cal Omega - Game 24.0 (Gaming Draw Poker, hold) | 1985 | Cal Omega / Casino Electronics Inc. | | | |
| comg246 | Cal Omega - Game 24.6 (Hotline) | 1985 | Cal Omega Inc. | | | |
| comg272a | Cal Omega - Game 27.2 (Keno, amusement) | 1985 | Cal Omega Inc. | | | |
| comg272b | Cal Omega - Game 27.2 (Keno, gaming) | 1985 | Cal Omega Inc. | | | |
| comg5107 | CEI 51.07 (CEI 906-III Poker, Schedule 05F) | 1988 | Casino Electronics Inc. | | | |
| comg5108 | CEI 51.08 (CEI 906-III Poker, Schedule 05F) | 1988 | Casino Electronics Inc. | | | |
| comg5108a | CEI 51.08 (CEI 906-III Poker, Schedule 09F) | 1988 | Casino Electronics Inc. | comg5108 | comg5108 | |
| comg5108b | CEI 51.08 (CEI 906-III Poker, Schedule 21F) | 1988 | Casino Electronics Inc. | comg5108 | comg5108 | |
| comg6004 | CEI 60.04 (CEI 906-III Poker, Schedule 09F) | 1989 | Casino Electronics Inc. | | | |
| comg903d | Cal Omega - System 903 Diag.PROM | 198? | Cal Omega Inc. | | | |
| comg905d | Cal Omega - System 905 Diag.PROM | 198? | Cal Omega Inc. | | | |
| comil | Who Wants to Be a Millionaire? (Character Options, Plug and Play, UK) | 2008 | Character Options | | | |
| commando | Commando (World) | 1985 | Capcom | | | |
| commandob | Commando (bootleg set 1) | 1985 | bootleg | commando | commando | |
| commandob2 | Commando (bootleg set 2) | 1985 | bootleg | commando | commando | |
| commandob3 | Commando (bootleg set 3) | 1985 | bootleg | commando | commando | |
| commandoj | Senjou no Ookami | 1985 | Capcom | commando | commando | |
| commandou | Commando (US set 1) | 1985 | Capcom (Data East USA license) | commando | commando | |
| commandou2 | Commando (US set 2) | 1985 | Capcom (Data East USA license) | commando | commando | |
| commandw | Command War - Super Special Battle & War Game (Ver 0.0J, prototype) | 1992 | Taito Corporation | | | |
| commsega | Commando (Sega) | 1983 | Sega | | | |
| comotion | CoMotion | 1976 | Gremlin | | | blockade |
| comotionp | CoMotion (patent) | 1976 | Gremlin | comotion | comotion | blockade |
| comp4 | Comp IV | 1977 | Milton Bradley | | | |
| compan | Chess Companion | 1982 | SciSys / Heuristic Software | | | |
| compan2 | Chess Companion II | 1983 | SciSys / LogiSoft | | | |
| compan3 | Kasparov Companion III | 1986 | SciSys / Heuristic Software | turbo16k | turbo16k | |
| compani1 | Kompanion 1 | 1990 | <unknown> | spectrum | spectrum | |
| comparc | Computerized Arcade (TMS1100 version, model 60-2159) | 1981 | Tandy Corporation | | | |
| comparca | Computerized Arcade (COP421 version, model 60-2159A) | 1981 | Tandy Corporation | comparc | comparc | |
| compc1 | PC-1 | 198? | Commodore Business Machines | ibm5150 | ibm5150 | |
| compc10 | Commodore PC 10 | 1984 | Commodore Business Machines | ibm5150 | ibm5150 | |
| compclr_flp | Compucolor floppy | | | | | |
| compclr_flp_port | Compucolor Floppy Port | | | | | |
| compclr2 | Compucolor II | 1977 | Intelligent Systems Corporation | | | |
| compgolf | Competition Golf Final Round (World?, revision 3) | 1986 | Data East Corporation | | | |
| compgolfo | Competition Golf Final Round (Japan, old version) | 1985 | Data East Corporation | compgolf | compgolf | |
| compis | Compis | 1985 | Telenova | | | |
| compis_fdc | Compis FDC | | | | | |
| compis_hrg | Compis HRG | | | | | |
| compis_uhrg | Compis UHRG | | | | | |
| compis2 | Compis II | 1986 | Telenova | compis | compis | |
| compisgfx_slot | Compis graphics slot | | | | | |
| compiskb | Compis Keyboard | | | | | |
| complexx | Complex X | 1984 | Taito America Corporation | | | |
| compmahj | Computer Mah-jong Yakuman | 1983 | Nintendo | | | |
| comport | Compaq Portable | 1983 | Compaq | ibm5150 | ibm5150 | |
| comportii | Portable II | 1987 | Compaq | ibm5170 | ibm5170 | |
| comportiii | Portable III | 1987 | Compaq | ibm5170 | ibm5170 | |
| compperf | Computer Perfection | 1979 | Lakeside | | | |
| comquest | ComQuest Plus (German) | 1995 | Data Concepts | | | |
| comslt286 | SLT/286 | 1988 | Compaq | ibm5170 | ibm5170 | |
| comt386 | Tower 386 | 199? | Commodore Business Machines | ibm5170 | ibm5170 | |
| comt486 | Tower 486 | 199? | Commodore Business Machines | ibm5170 | ibm5170 | |
| comx_clm | COMX 80 Column Card | | | | | |
| comx_eb | COMX-35E Expansion Box | | | | | |
| comx_epr | COMX-35 F&M EPROM Switchboard | | | | | |
| comx_expansion_slot | COMX-35 expansion slot | | | | | |
| comx_fd | COMX FD | | | | | |
| comx_joy | COMX JoyCard | | | | | |
| comx_pl80 | COMX PL-80 | | | | | |
| comx_prn | COMX-35 Printer Card | | | | | |
| comx_ram | COMX-35 RAM Card | | | | | |
| comx_thm | COMX-35 Thermal Printer Card | | | | | |
| comx35n | COMX 35 (NTSC) | 1983 | Comx World Operations Ltd | comx35p | comx35p | |
| comx35p | COMX 35 (PAL) | 1983 | Comx World Operations Ltd | | | |
| conc | Conchess (standard, set 1) | 1982 | Consumenta Computer / Loproc | | | |
| conca | Conchess (standard, set 2) | 1982 | Consumenta Computer / Loproc | conc | conc | |
| concams | Conchess Plymate Amsterdam | 1985 | Systemhuset / Loproc | | | |
| concams5 | Conchess Plymate Amsterdam 5.5MHz | 1985 | Systemhuset / Loproc | concams | concams | |
| concept | Concept | 1982 | Corvus Systems | | | |
| concept_kbd | Corvus Concept Keyboard | | | | | |
| concgla | Conchess Princhess Glasgow | 1984 | Systemhuset / Loproc | | | |
| concglap | Conchess Plymate Glasgow Plus (set 1) | 1984 | Systemhuset / Loproc | | | |
| concglapa | Conchess Plymate Glasgow Plus (set 2) | 1984 | Systemhuset / Loproc | concglap | concglap | |
| concvicp | Conchess Plymate Victoria (prototype) | 1990 | Systemhuset / Loproc | | | |
| condor | Condor (Sidam bootleg of Phoenix) | 1981 | bootleg (Sidam) | phoenix | phoenix | |
| condorn | Condor (S C Novar bootleg of Phoenix) | 1981 | bootleg (S C Novar) | phoenix | phoenix | |
| condorva | Condor (Valadon Automation bootleg of Phoenix) | 1980 | bootleg (Valadon Automation) | phoenix | phoenix | |
| coneyis | Old Coney Island! | 1979 | Game Plan | | | genpin |
| confmiss | Confidential Mission (GDS-0001) | 2000 | Sega | naomigd | | |
| congo | Congo Bongo (Rev C, 2 board stack) | 1983 | Sega | | | congo |
| congo_11 | Congo (1.1) | 1995 | Williams | congo_21 | congo_21 | |
| congo_11s10 | Congo (1.1, DCS sound 1.0) | 1995 | Williams | congo_21 | congo_21 | |
| congo_13 | Congo (1.3) | 1995 | Williams | congo_21 | congo_21 | |
| congo_20 | Congo (2.0) | 1995 | Williams | congo_21 | congo_21 | |
| congo_21 | Congo (2.1) | 1995 | Williams | | | |
| congoa | Congo Bongo (Rev C, 3 board stack) | 1983 | Sega | congo | congo | congo |
| conquer | Conqueror | 198? | <unknown> | | | |
| conquest | Conquest (prototype) | 1982 | Williams / Vid Kidz | | | |
| conquist | Kasparov Conquistador | 1988 | Saitek / Heuristic Software | | | |
| consoemt | Consola EMT | 2003 | Indra / Amper | | | |
| const | Constellation | 1983 | Novag Industries / Intelligent Heuristic Programming | | | |
| const36 | Constellation 3.6MHz (set 1) | 1984 | Novag Industries / Intelligent Heuristic Programming | const | const | |
| const36a | Constellation 3.6MHz (set 2) | 1986 | Novag Industries / Intelligent Heuristic Programming | const | const | |
| constjr | Constellation Junior | 1985 | Novag Industries / Intelligent Heuristic Programming | | | |
| constq | Constellation Quattro | 1986 | Novag Industries / Intelligent Heuristic Programming | const | const | |
| contcirc | Continental Circus (World) | 1987 | Taito Corporation Japan | | | |
| contcircj | Continental Circus (Japan) | 1987 | Taito Corporation | contcirc | contcirc | |
| contcircu | Continental Circus (US set 1) | 1987 | Taito America Corporation | contcirc | contcirc | |
| contcircua | Continental Circus (US set 2) | 1987 | Taito America Corporation | contcirc | contcirc | |
| contra | Contra (US / Asia, set 1) | 1987 | Konami | | | |
| contra1 | Contra (US / Asia, set 2) | 1987 | Konami | contra | contra | |
| contrab | Contra (bootleg) | 1987 | bootleg | contra | contra | |
| contrabj | Contra (Japan bootleg, set 1) | 1987 | bootleg | contra | contra | |
| contrabj1 | Contra (Japan bootleg, set 2) | 1987 | bootleg | contra | contra | |
| contrae | Contra (US / Asia, set 3) | 1987 | Konami | contra | contra | |
| contraj | Contra (Japan, set 1) | 1987 | Konami | contra | contra | |
| contraj1 | Contra (Japan, set 2) | 1987 | Konami | contra | contra | |
| conyfght | TV Virtual Fighter / Free Fight Kung Fu (Conny / Big Ben) | 200? | Conny / Big Ben | | | |
| conyping | Virtual Ping Pong (Conny / SDW Games) | 2003 | Conny / SDW Games | | | |
| conyteni | TV Virtual Tennis | 2003 | Conny | | | |
| cookbib | Cookie & Bibi (set 1) | 1995 | SemiCom | | | |
| cookbib2 | Cookie & Bibi 2 (English, set 1) | 1996 | SemiCom | | | |
| cookbib2a | Cookie & Bibi 2 (English, set 2) | 1996 | SemiCom | cookbib2 | cookbib2 | |
| cookbib2b | Cookie & Bibi 2 (English, set 3) | 1996 | SemiCom | cookbib2 | cookbib2 | |
| cookbib2c | Cookie & Bibi 2 (English / Korean) | 1996 | SemiCom | cookbib2 | cookbib2 | |
| cookbib3 | Cookie & Bibi 3 | 1997 | SemiCom | | | |
| cookbiba | Cookie & Bibi (set 2) | 1995 | SemiCom | cookbib | cookbib | |
| cookrace | Cook Race | 1982 | bootleg | btime | btime | |
| cool104 | Cool 104 | 1997 | Sigma | | | |
| coolmini | Cool Minigame Collection | 1999 | SemiCom | | | |
| coolminii | Cool Minigame Collection (Italy) | 1999 | SemiCom | coolmini | coolmini | |
| coolpool | Cool Pool | 1992 | Catalina | | | |