| Shrike Avenger (prototype) | 1986 | Bally/Sente | shrike | Shooter / Flying 1st Person | 0.00 |
| Shu Zi Le Yuan (V113FR) (clone of: iqblock) | 1996 | IGS | iqblockf | | 0.00 |
| Shu Zi Le Yuan (V127M) (clone of: iqblock) | 1996 | IGS | iqblocka | | 0.00 |
| Shuffle Inn (Shuffle) (L-1) | 1987 | Williams | shfin_l1 | | 0.00 |
| Shuffleboard | 1978 | Midway | shuffle | Sports / Shuffleboard | 5.67 |
| Shuffleshot (v1.37) (clone of: shufshot) | 1997 | Strata/Incredible Technologies | shufshot137 | | 0.00 |
| Shuffleshot (v1.39) (clone of: shufshot) | 1997 | Strata/Incredible Technologies | shufshot139 | | 0.00 |
| Shuffleshot (v1.40) | 1997 | Strata/Incredible Technologies | shufshot | Sports / Shuffleboard | 7.33 |
| Shuttle Invader (sample of: invaders) | 1979 | Omori Electric Co., Ltd. | shuttlei | | 0.00 |
| Shuuz (version 7.1) (clone of: shuuz) | 1990 | Atari Games | shuuz2 | Sports / Horseshoes | 0.00 |
| Shuuz (version 8.0) | 1990 | Atari Games | shuuz | Sports / Horseshoes | 6.33 |
| Sichuan II (hack, set 1) (clone of: matchit) | 1989 | hack | sichuan2 | Puzzle / Match *Mature* | 10.00 |
| Sichuan II (hack, set 2) (clone of: matchit) | 1989 | hack | sichuan2a | | 0.00 |
| Side Arms - Hyper Dyne (Japan) (clone of: sidearms) | 1986 | Capcom | sidearmsj | | 0.00 |
| Side Arms - Hyper Dyne (US) (clone of: sidearms) | 1986 | Capcom (Romstar license) | sidearmsr | | 0.00 |
| Side Arms - Hyper Dyne (World) | 1986 | Capcom | sidearms | Shooter / Flying Horizontal | 7.90 |
| Side by Side (Ver 2.5 J) | 1996 | Taito | sidebs | Unplayable | 7.80 |
| Side by Side 2 (Ver 2.4 J) (clone of: sidebs2) | 1997 | Taito | sidebs2j | | 0.00 |
| Side by Side 2 (Ver 2.6 A) | 1997 | Taito | sidebs2 | Unplayable | 8.00 |
| Side Pocket (bootleg) (clone of: sidepckt) | 1986 | bootleg | sidepcktb | | 0.00 |