| Siege of Dungeon (2023) | 640,813 | 140 |
| Siege of Treboulain (2022) | 1,417 | 2 |
| Siege Saga (2018) | 2,342,751 | 29 |
| Siege Survival: Gloria Victis (2021) | 13,948,358 | 2,663 |
| Siege the Day (2021) | 556,213 | 123 |
| Siege Up! (2023) | 1,294,691 | 524 |
| Siege: Titan Wars (2017) | 2,407,715 | 85 |
| Siegecraft Commander (2017) | 765,334 | 205 |
| Sierra Championship Boxing (1983) | 6,027 | 11 |
| Sierra's 3-D Helicopter Simulator (1987) | 2,574 | 8 |
| Sift Heads Cartels (2024) | 125,718 | 56 |
| Sifting Thyme (2024) | 0 | 0 |
| Sifu (2022) | 191,362,365 | 77,765 |
| Sifu's Quest (2024) | 10 | 1 |
| Sigformation (2023) | 0 | 0 |
| Sigh of the Abyss: Shadow Bonds (2022) | 0 | 0 |
| Sigil (2019) | 1,776,116 | 1,268 |
| Sigil of the Magi (2022) | 188,175 | 101 |
| Sigilfarer (2025) | 73,172 | 37 |
| Sigils Of Elohim (2014) | 75,662 | 185 |
| Sigma 7 (1986) | 17,462 | 27 |
| Sigma Draconis (2021) | 12,099 | 10 |
| Sigma Harmonics (2008) | 78,920 | 26 |
| Sigma Impact (2021) | 17,718 | 8 |
| Sigma Star Saga (2005) | 457,608 | 366 |
| Sigma Theory: Global Cold War (2019) | 1,413,351 | 651 |
| Sign Craft: Simulator (2023) | 2 | 1 |
| Sign Motion (2014) | 756,588 | 35 |
| Sign of Silence (2020) | 0 | 0 |
| The Signal From Tölva (2017) | 746,457 | 652 |
| The Signal State (2021) | 159,080 | 196 |
| SIGNAL: Uncharted Lands (2025) | 403 | 4 |
| Signalis (2022) | 32,243,490 | 20,031 |
| Signed and Sealed With a Kiss (2019) | 60,737 | 18 |
| Signs Of Darkness (2017) | 0 | 0 |
| Signs of the Sojourner (2020) | 162,455 | 292 |
| Signum Perfectum (2022) | 22 | 4 |
| Signus: The Artifact Wars (1998) | 752 | 1 |
| Signy & Mino: Against All Gods (2026) | 13,879 | 3 |
| Siheyuan (2023) | 67 | 4 |
| SIK Space Invader Kreature (2021) | 22 | 2 |
| Sikaq (2018) | 492 | 5 |
| Silas (2010) | 8,198,308 | 403 |
| Silence (2016) | 6,604,503 | 1,891 |
| Silence Channel (2021) | 3,167,294 | 523 |
| Silence Channel 2 (2023) | 1,762,431 | 532 |
| Silence of the Siren (2024) | 872,016 | 415 |
| Silencer (1998) | 203,511,027 | 464 |
| The Silent Age (2012) | 7,517,209 | 3,306 |
| Silent Assault (1989) | 846,537 | 212 |
| Silent Bomber (1999) | 880,924 | 921 |
| SILENT BREATH (2024) | 26,704,695 | 1,743 |
| The Silent Column (2024) | 0 | 0 |
| Silent Debuggers (1991) | 47,466 | 84 |
| Silent Descent (2017) | 1,032,766 | 223 |
| Silent Earth (2021) | 8,993 | 5 |
| Silent Footsteps (2018) | 8,766 | 23 |
| Silent Heroes (2005) | 429,667 | 156 |
| Silent Hill (1999) | 799,069,513 | 104,204 |
| Silent Hill 2 (2001) | 462,215,658 | 167,838 |
| Silent Hill 3 (2003) | 113,184,029 | 32,865 |
| Silent Hill 4: The Room (2004) | 108,395,057 | 25,068 |
| The Silent Hill Experience (2006) | 98,419 | 98 |
| SILENT HILL f (2025) | 46,674,695 | 17,564 |
| Silent Hill: Book of Memories (2012) | 1,738,796 | 602 |
| Silent Hill: Downpour (2012) | 117,423,365 | 12,326 |
| Silent Hill: Homecoming (2008) | 77,023,191 | 16,626 |
| Silent Hill: Origins (2007) | 33,667,113 | 10,084 |
| Silent Hill: Orphan (2007) | 259,933 | 155 |
| Silent Hill: Orphan (2014) | 72,362 | 22 |
| Silent Hill: Shattered Memories (2009) | 57,083,619 | 8,035 |
| Silent Hill: The Arcade (2007) | 2,596,352 | 453 |
| Silent Hill: The Escape (2007) | 198,390 | 64 |
| Silent Hill: The Short Message (2024) | 11,163,710 | 11,983 |
| Silent Hope (2023) | 5,105,542 | 896 |
