| | Super Bishi Bashi Championship (ver KAA, 3 Players) (clone of: sbishi) | 1998 | Konami | sbishik | | 0.00 |
| | Super Mario (Maygay) (EPOCH) (1.B, set 9) (clone of: ep_mario) | 1998 | Maygay | ep_marioh | | 0.00 |
| | Super Pool 99 (Version 0.31) (clone of: spool99) | 1998 | Electronic Projects | spool99a | | 0.00 |
| | Super Pool 99 (Version 0.36) | 1998 | Electronic Projects | spool99 | | 0.00 |
| | Super World Stadium '98 (Japan, SS81/VER.A) | 1998 | Namco | sws98 | | 0.00 |
| | Sweet Hearts II (1VXFC5461, New Zealand) (sample of: 3bagflvt) | 1998 | Aristocrat | swtht2nz | | 8.00 |
 | Taisen Hot Gimmick Kairakuten (Japan) | 1998 | Psikyo | hgkairak | Tabletop / Mahjong *Mature* | 0.00 |
 | Taisen Mahjong FinalRomance 4 (Japan) | 1998 | Video System Co. | fromanc4 | Tabletop / Mahjong *Mature* | 7.50 |
| | Taisen Tanto-R Sashissu!! (J 980216 V1.000) | 1998 | Sega | sasissu | | 7.00 |
 | Tech Romancer (Euro 980914) | 1998 | Capcom | techromn | Fighter / Versus | 6.18 |
| Tech Romancer (USA 980914) (clone of: techromn) | 1998 | Capcom | techromnu | | 0.00 |
 | Tecmo World Cup '98 (JUET 980410 V1.000) | 1998 | Tecmo | twcup98 | Sports / Soccer | 7.86 |
| | Tenkomori Shooting (Asia, TKM2/VER.A1) | 1998 | Namco | tenkomor | | 8.00 |
| | Tenkomori Shooting (Japan, TKM1/VER.A1) (clone of: tenkomor) | 1998 | Namco | tenkomorja | | 0.00 |
| | Tenth Degree (prototype) | 1998 | Atari Games | tenthdeg | Fighter / Versus | 0.00 |
| | Teraburst (1998/02/25 ver AAA) (clone of: terabrst) | 1998 | Konami | terabrsta | | 0.00 |
| | Teraburst (1998/07/17 ver UEL) | 1998 | Konami | terabrst | | 0.00 |
 | Tetris The Grand Master (Japan 980710) | 1998 | Arika / Capcom | tgmj | Puzzle / Drop | 3.73 |
| | The Champion Pub (1.5) (clone of: cp_16) | 1998 | Bally | cp_15 | | 0.00 |
| | The Champion Pub (1.6) | 1998 | Bally | cp_16 | | 0.00 |
