| PC/MS-Windows CD |  Starcraft II - Legacy of the Void | 2015 | Blizzard Ent., Inc. |
| Sinclair ZX Spectrum cass. | Stars Hb | 2015 | kas29 |
| PC/MS-Windows pack. | Stasis | 2015 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Stasis - Deluxe Edition | 2015 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Stealth Bastard Deluxe - Complete Edition | 2015 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Stealth Inc. 2 - A Game of Clones | 2015 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Steam and Metal Model 335010 | 2015 | Steam Valve Corp. |
| PC/MS-Windows pack. | Steam Heroes Model 341160 | 2015 | Steam Valve Corp. |
| PC/MS-Windows CD | Steam Monster Sale Game | 2015 | Valve Corp. |
| Pachislot | Steins Gate | 2015 | Oizumi |
| Sony PlayStation 3 disc | Steins;Gate 0 Model BLJM-61303 | 2015 | 5pb. Japan |
| Sony PS Vita game | Steins;Gate 0 Model VLJM-35259 | 2015 | 5pb. Japan |
| Sinclair ZX Spectrum cass. | Stormfinch Hb | 2015 | Stonechat Productions |
| Slot Machine | Stormin' 7's Play 50/100 Lines Game Plus | 2015 | Ainsworth Game Technology, Ltd. |
| Sony PSN: PSone Classics pack. |  Street Racquetball Model NPUJ-????? | 2015 | Agetec, Inc. Sunnyvale, CA, USA |
| Slot Machine | Streghe | 2015 | Vital Games Italy |
| Apple tvOS pack. | Strike! - Ten Pin Bowling | 2015 | Unknown |
| PC/MS-Windows pack. | Strong Bad's Cool Game for Attractive People | 2015 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Stronghold Crusader 2 | 2015 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Stronghold Crusader 2 - Special Edition | 2015 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Subject 13 | 2015 | GOG sp. z o.o. |
| PC/MS-Windows CD | Sublevel Zero | 2015 | Mastertronic Games, Ltd. |
| Google Play pack. | Sudoku World | 2015 | Mobirix |
| Sony PSN: PSone Classics pack. | Suikoden II Model NPEF-????? | 2015 | Konami Digital Ent. Co., Ltd. |
| Sony PSN: PSone Classics pack. | Suikoden Model NPEF-????? | 2015 | Konami Digital Ent. Co., Ltd. |
| Sega Genesis cart. | Sumo Slam | 2015 | Piko Interactive LLC |
| Slot Machine | Sun Money | 2015 | Ainsworth Game Technology, Ltd. |
| Slot Machine | Sun Tiger Jackpot Reel Power | 2015 | Aristocrat Leisure Industries Pty, Ltd. |
| PC/MS-Windows pack. | Sunless Sea | 2015 | GOG sp. z o.o. |
| Pachislot | Super Bingo Premium | 2015 | Bellco Corp. Japan |
| Pachislot | Super Black Jack 2 | 2015 | Net Corp. Japan |
| Pachislot | Super Jackpot | 2015 | Across Universal Entreprises Group Japan |
| Nintendo Wii U disc | Super Mario Maker | 2015 | Nintendo Co., Ltd. Japan |
| PC/MS-Windows pack. | Super Mega Baseball - Extra Innings Model 314070 | 2015 | Steam Valve Corp. |
| Apple tvOS pack. | Super Mega Worm | 2015 | Unknown |
| Sony PSN: Shodai PS Archives pack. | Super Puzzle Fighter II Turbo Model NPJI-????? | 2015 | Capcom Co., Ltd. Japan |
| Redemption mechanical game | Super Star | 2015 | Andamiro Co., Ltd. |
| Google Play pack. | Supercow | 2015 | Nevosoft, Inc. |
| Slot Machine | Superman | 2015 | Aristocrat Leisure Industries Pty, Ltd. |
| Slot Machine | Superman The Movie Wonder Wheels | 2015 | Aristocrat Leisure Industries Pty, Ltd. |
