| | Cash Flow (Maygay) (EPOCH) (3.7, set 1) | 1998 | Maygay | ep_cflow | | 0.00 |
| | Chaos Heat (V2.08J) (clone of: chaoshea) | 1998 | Taito | chaosheaj | | 0.00 |
| | Chaos Heat (V2.09O) | 1998 | Taito | chaoshea | | 5.50 |
 | Choukou Senki Kikaioh (Japan 980914) (clone of: techromn) | 1998 | Capcom | kikaioh | Fighter / Versus | 0.00 |
 | Cool Boarders Arcade Jam | 1998 | Tecmo | cbaj | Sports / Skiing | 7.60 |
 | Cotton Boomerang (JUET 980709 V1.000) | 1998 | Success | cottonbm | Shooter / Flying Horizontal | 7.06 |
 | Cross Pang | 1998 | F2 System | crospang | Puzzle | 0.00 |
| | Cut The Cheese Deluxe (Redemption) (clone of: ctcheese) | 1998 | Sega | ctchzdlx | | 0.00 |
 | Cyvern (Japan) (clone of: cyvern) | 1998 | Kaneko | cyvernj | | 0.00 |
| Cyvern (US) | 1998 | Kaneko | cyvern | Shooter / Flying Vertical | 7.75 |
| | Dance Dance Revolution (GC845 VER. JAA) (clone of: dstage) | 1998 | Konami | ddrja | | 0.00 |
| | Dance Dance Revolution (GC845 VER. JAB) (clone of: dstage) | 1998 | Konami | ddrjb | | 0.00 |
| | Dance Dance Revolution - Internet Ranking Ver (GC845 VER. JBA) (clone of: dstage) | 1998 | Konami | ddrj | | 0.00 |
 | Dangan Feveron (Japan, Ver. 98/09/17) (clone of: feversos) | 1998 | Cave (Nihon System license) | dfeveron | Shooter / Flying Vertical | 10.00 |
 | Daraku Tenshi - The Fallen Angels | 1998 | Psikyo | daraku | Fighter / Versus | 8.00 |
| | Dark Horse Legend (GX706 VER. JAA) | 1998 | Konami | darkhleg | | 7.50 |
| | Data East Test Chip | 1998 | Data East | detest | | 0.00 |
| | Date Quiz Go Go (Korea) | 1998 | SemiCom | dquizgo | | 0.00 |
| | Daytona USA 2 (Revision A) | 1998 | Sega | daytona2 | Unplayable | 7.25 |
| | Daytona USA 2 Power Edition | 1998 | Sega | dayto2pe | | 2.53 |
