| Solid Image Ltd | Developer | |
| Solid Sphere | DeveloperPublisher | |
| SolidifyGames | Developer | |
| Soliloquy Douglas | Developer | |
| Solin Games | Developer | |
| Soliska | Developer | |
| Solitary creations | Developer | |
| SolitaryScribbles | Developer | |
| Soliton | DeveloperPublisher | |
| Soliton Software | Developer | |
| Solkitte | Developer | |
| Sollara Games | Developer | |
| Sollarium Studio | Developer | |
| Solo Byte Games | Developer | |
| SoloCodeNet | Developer | |
| SoloDevKingdom | Developer | |
| Soloma Games | Developer | |
| Solomon Fletcher | Developer | |
| SolonWise | Developer | |
| Solscape | Developer | |
| Solvarg | DeveloperPublisher | |
| Soma Games | DeveloperPublisher | |
| Soma Sim | Developer | |
| Somarin | Developer | |
| Somasim | Developer | |
| Somber Pixel | Developer | |
| Somberhead | Developer | |
| Sombr Studio | DeveloperPublisher | |
| Sombrero Guy | Developer | |
| Some Brothers Studio | Developer | |
| Some Donkus | Developer | |
| Some Pixel Guy | Developer | |
| SomeDudeDev | Developer | |
| SomeFarang | Developer | |
| SomeHumbleOnion | Developer | |
| SomeKindOfWisp | Developer | |
| SomePolishCoders | Developer | |
| Somepx | Developer | |
| SomethinBoutGames | Developer | |
| Something Classic Games | Developer | |
| Something Good Corporation | DeveloperPublisher | |
| Something Something Games | Developer | |
| Something#53 | Developer | |
| SomethingDerpy | Developer | |
| Sometimes You | DeveloperPublisher | |
| Somewhat Unsettling | Developer | |
| SomewhatBasicGames | Developer | |
| Somi | Developer | |
| Somin | Developer | |
| SominStudios | Developer | |