| Savage Reign / Fu'un Mokushiroku - kakutou sousei | 1995 | SNK | savagere | Fighter / Versus | 5.85 |
| Savanna (Jungler bootleg) (clone of: jungler) | 1981 | bootleg (Olympia) | savanna | | 0.00 |
| Say No More (Barcrest) (MPU4) (set 1) | 1969 | Barcrest | m4sayno | | 0.00 |
| Say No More (Barcrest) (MPU4) (set 2) (clone of: m4sayno) | 1969 | Barcrest | m4sayno__a | | 0.00 |
| Say No More (Barcrest) (MPU4) (set 3) (clone of: m4sayno) | 1969 | Barcrest | m4sayno__b | | 0.00 |
| Say No More (Barcrest) (MPU4) (set 4) (clone of: m4sayno) | 1969 | Barcrest | m4sayno__c | | 0.00 |
| Say No More (Barcrest) (MPU4) (set 5) (clone of: m4sayno) | 1969 | Barcrest | m4sayno__d | | 0.00 |
| Scacco Matto / Space Win | 1996 | Playmark | spacewin | | 0.00 |
| Scandal Mahjong (Japan 890213) | 1989 | Nichibutsu | scandal | Tabletop / Mahjong *Mature* | 10.00 |
| Scandal Mahjong [BET] (Japan 890217) (clone of: scandal) | 1989 | Nichibutsu | scandalm | Tabletop / Mahjong *Mature* | 0.00 |
| Scared Stiff (0.3) (clone of: ss_15) | 1996 | Bally | ss_03 | | 0.00 |
| Scared Stiff (1.2) (clone of: ss_15) | 1996 | Bally | ss_12 | | 0.00 |
| Scared Stiff (1.4) (clone of: ss_15) | 1996 | Bally | ss_14 | | 0.00 |
| Scared Stiff (1.5) | 1996 | Bally | ss_15 | | 0.00 |
| Scared Stiff (D0.1R with sound rev.25) (clone of: ss_15) | 1996 | Bally | ss_01 | | 0.00 |
| Schmeiser Robo (Japan) | 1993 | Hot-B | schmeisr | Fighter / Versus | 7.25 |
| Scion | 1984 | Seibu Denshi | scion | Shooter / Flying Vertical | 5.75 |
| Scion (Cinematronics) (clone of: scion) | 1984 | Seibu Denshi (Cinematronics license) | scionc | Shooter / Flying Vertical | 0.00 |
| Scooter Shooter | 1985 | Konami | scotrsht | Shooter / Flying | 5.00 |
| Scorpion (L-1) | 1980 | Williams | scrpn_l1 | | 0.00 |