| RuthSkeeter | Developer | |
| Ruth_Studio | Developer | |
| Ruthie Edwards | Developer | |
| RutraSan | Developer | |
| Rutubo Games | Developer | |
| Ruud van Gaal | DeveloperPublisher | |
| Ruune | Developer | |
| Ry | Developer | |
| RyThom | Developer | |
| Ryabcev Pavel | Developer | |
| Ryad Godard | Developer | |
| Ryan Albano | Developer | |
| Ryan Arata | Developer | |
| Ryan Ayton | Developer | |
| Ryan Chou | Developer | |
| Ryan Davis | Developer | |
| Ryan Entertainment | Developer | |
| Ryan Goward | Developer | |
| Ryan Johnston | Developer | |
| Ryan Jung | Developer | |
| Ryan Keppel | Developer | |
| Ryan Kline | Developer | |
| Ryan Kubik | Developer | |
| Ryan Marcham | Developer | |
| Ryan N | Developer | |
| Ryan Nein | Developer | |
| Ryan Nielson | Developer | |
| Ryan Reichow | Developer | |
| Ryan Scott | Developer | |
| Ryan Silberman | Developer | |
| Ryan Trawick | Developer | |
| Ryan Vanden Boomen | Developer | |
| Ryan Veeder | Developer | |
| Ryan Weaver | Developer | |
| Ryan Wheeler | Developer | |
| Ryan White | Developer | |
| Ryan Wolf | Developer | |
| Ryan904544 | Developer | |
| RyanBram | Developer | |
| RyanDgames | Developer | |
| RyanGameDev | Developer | |
| RyanHCode | Developer | |
| RyanSPetersonGames | Developer | |
| RyanThompson | Developer | |
| RyanVitor06 | Developer | |
| Ryann1908 | Developer | |
| Ryback | Developer | |
| Ryfi | Developer | |
| Rygar | DeveloperPublisher | |
| Rykuzu Studios | Developer | |
| Rykwyem | Developer | |
| Rymdlingen | Developer | |
| RynGM | Developer | |
| Rynator1999 YT | Developer | |
| RynoGG | Developer | |
| Rynoch | Developer | |
| RyokuDD | Developer | |
| Ryosuke | Developer | |
| Ryota | Developer | |
| Rystech | Developer | |
| Rythane | Developer | |
| Rythmics | Developer | |
| Rytmix | Developer | |
| Ryu Ga Gotoku Studio | Developer | |
| RyuShinN | Developer | |
| Ryudem | Developer | |
| Ryuji Kuwaki | Developer | |
| Ryuraven | Developer | |
| RyuuKatze | Developer | |
| Ryuza | Developer | |
| Ryxali | Developer | |
| Ryū ga Gotoku Studios | Developer | |
| RzeL | Developer | |
| Ráchel Plutón | Developer | |
| Rémi D. | Developer | |
| Rémi Töötätä | Developer | |
| Rémy 🍬 Devaux | Developer | |
| Rémy Sohier | Developer | |
| Réunion des Musées Nationaux | DeveloperPublisher | |
| Rúnar Vestmann | Developer | |
| Rúnica Games | Developer | |
| S | DeveloperPublisher | |
| S Brockelhurst | Developer | |
| S Chance | Developer | |
| S GameTime | Developer | |
| S Software | Developer | |
| S T I L L A | Developer | |
| S U G Y | Developer | |
| S&M Software | DeveloperPublisher | |
| S-Cov | Developer | |
| S-Morishita | Developer | |
| S-Neo | Developer | |
| S-Pider_dev | Developer | |
| S-Plan Corporation | Developer | |
| S. Davies | Developer | |
| S. E. A. GAMES | Developer | |
| S. Larratt | Developer | |
| S. Larrimer | Developer | |
| S. Leighton | Developer | |
| S. Lyttle | Developer | |
| S. Marie | Developer | |
| S. Owaga | Developer | |
| S. Shipway | Developer | |
| S. Woodson | Developer | |
| S.E.G Media Group | Developer | |
| S.L. | Developer | |
| S.P.L Studios | Developer | |
| S.R.R | Developer | |
| S0wbear | Developer | |
| S10Games | Developer | |
| S1L3nCe | Developer | |
| S2 Games | DeveloperPublisher | |
| S4LT-V4LT | Developer | |
| S4Trace | Developer | |
| SA | Publisher | |
| SA Gamedev | Developer | |
| SA Panday | Developer | |
| SAE Athens Games | Developer | |
| SAE Brisbane Games | Developer | |
| SAGiggs | Developer | |
| SALT & PIXEL | Developer | |
| SAME Creative Inc. | Developer | |
| SAMOLIOTIK | Developer | |
| SAMS | Publisher | |
| SAMS[4] | Publisher | |
| SANCHAY | Developer | |
| SANS THE SKELETON HEHE | Developer | |
| SARFEX | Developer | |
| SAS Sakata | Developer | |
| SAT-BOX | DeveloperPublisher | |
| SAVVU Games | Developer | |
| SAY Sí | Developer | |
| SB | Developer | |
| SB Computer Entertainment | Developer | |
| SC FAN STUDIO | Publisher | |
| SC Ovilex Soft | DeveloperPublisher | |
| SCA | Publisher | |
| SCE AustraliaAU | Publisher | |
| SCE KoreaKO | Publisher | |
| SCE Studio Cambridge | Developer | |
| SCE Studios Camden | Developer | |
| SCEA | DeveloperPublisher | |
| SCEANA | Publisher | |
| SCEAUS | Publisher | |
| SCEE | DeveloperPublisher | |
| SCEE London Studio | Developer | |
| SCEEPAL | Publisher | |
| SCEI | DeveloperPublisher | |
| SCEIAU | Publisher | |
| SCEIJP | Publisher | |
| SCEJ | DeveloperPublisher | |
| SCI | Publisher | |
| SCI Entertainment Group | Developer | |
| SCI Games | Developer | |
| SCR Adventures | Publisher | |
| SCREAM CATALOGUE | Developer | |
| SCRNPRNT | Developer | |
| SCS Software | DeveloperPublisher | |
| SCaffa | Developer | |
| SCi | DeveloperPublisher | |
| SCi Entertainment | Publisher | |
| SCi Games | Publisher | |
| SCi Games Ltd. | Publisher | |
| SCi GamesEU | Publisher | |
| SCiEU | Publisher | |
| SCiPAL | Publisher | |
| SDR Project | Publisher | |
| SE Mobile and Online | Publisher | |
| SE Software | Developer | |
| SE77E | Developer | |
| SEAROM | Developer | |
| SEEC | DeveloperPublisher | |
| SEGA | DeveloperPublisher | |
| SEGA Enterprises | Publisher | |
| SEGA Racing Studio | Developer | |
| SEGA-AM3 | Developer | |
| SEGARIO | Developer | |
| SEK | Developer | |
| SEMISOFT | Developer | |
| SENOME | Developer | |
| SEP BOA | Developer | |
| SEQUENTIA SOFT | Developer | |
| SERPA GAMES | Developer | |
| SETA | DeveloperPublisher | |
| SETA (JP/NA) | Publisher | |
| SETA Corporation | DeveloperPublisher | |
| SETA Corporation JP | Publisher | |
| SETA CorporationJP | Publisher | |
| SETA/ | Publisher | |
| SETENTIA Studios | Developer | |
| SETOOK | Developer | |
| SF.net | DeveloperPublisher | |
| SF1252 | Developer | |
| SFB Games | DeveloperPublisher | |
| SFBGames | Developer | |
| SFL Interactive | Developer | |
| SG Diffusion | Developer | |
| SG Morumbi | Developer | |
| SGI | Developer | |
| SHADOW BEAST | Developer | |