| Retro-Gaming Connexion | Publisher | |
| Retro64 | Developer | |
| RetroArch | Developer | |
| RetroBoi128 | Developer | |
| RetroDEV | Developer | |
| RetroEpic Software | Developer | |
| RetroExcellent | Developer | |
| RetroGamer | Developer | |
| RetroGears | Developer | |
| RetroHead | Developer | |
| RetroLord120 | Developer | |
| RetroMania Studios | DeveloperPublisher | |
| RetroSouls | Developer | |
| RetroSpaceMan123 | Developer | |
| RetroSteveUK | Developer | |
| RetroValou | Developer | |
| RetroYetiGames | Developer | |
| Retroactivos | Developer | |
| Retrocade Media | Developer | |
| Retrocky Studios | Developer | |
| RetrografX | Developer | |
| Retroguru | DeveloperPublisher | |
| Retroid Interactive | DeveloperPublisher | |
| Retromakes | Developer | |
| Retromaze | Developer | |
| Retronomicon Games Quality | Developer | |
| Retrosaur | Developer | |
| Retrotainment Games | DeveloperPublisher | |
| Retrowax | Developer | |
| Retrowynn | Developer | |
| Retsa Games | Developer | |
| RetsynNL | Developer | |
| Return Null | Developer | |
| Reunion des Musees Nationaux | Publisher | |
| ReunionMacabra | Developer | |
| RevEng | Developer | |
| Reval Indie House | Developer | |
| Revanix | Developer | |
| ReveVoodoo | Developer | |
| Revell | Publisher | |
| Revelplay Interactive | Developer | |
| Reverb Triple XP | Publisher | |
| ReverbInTheVoid | Developer | |
| Reverge Labs | Developer | |
| Reverie Forge | Developer | |
| Reverie World Studios | Developer | |
| ReverseTides | Developer | |
| Revetron | Developer | |
| Reveu Games | Developer | |
| Revistronic | Developer | |
| Revival Productions | DeveloperPublisher | |
| Revival Studios | Developer | |
| Revolto Software | Developer | |
| RevoluGame | Developer | |
| Revolution | DeveloperPublisher | |
| Revolution Software | DeveloperPublisher | |
| Revolution Software Ltd. | Developer | |
| Revolution Studios | Developer | |
| RevolutionaryInteractive | Developer | |
| RevolverStudios | Developer | |
| Revontuli | Developer | |
| Reward Studios | Developer | |
| Rewind Games | Developer | |
| Rewolf Software | Developer | |
| Rewzu | Developer | |
| Rex | Developer | |
| Rex Entertainment | Publisher | |
| Rex Mundane | Developer | |
| RexTGun | Developer | |
| Rexent Games | Developer | |
| RexyIsLive | Developer | |
| Rey Rapids Studios | Developer | |
| ReyGates | Developer | |
| Reynaa | Developer | |
| Reyonn | Developer | |
| Rezioz | Developer | |
| Reznal | Developer | |
| Rezyyyy | Developer | |
| Rha | Developer | |
| Rhadamenthe | Developer | |
| Rhaennys | Developer | |
| Rhbs (Rafael Hey) | Developer | |
| Rheakor | Developer | |
| Rhema Press | Developer | |
| Rhemery | Developer | |
| Rhete | Developer | |
| Rhett Anderson | Developer | |
| Rhewid | Developer | |
| Rhezom | Developer | |
| Rhime | Developer | |
| Rhino | Developer | |
| Rhino Games Inc. | Developer | |
| Rhino Group | Developer | |
| Rhino Studios | DeveloperPublisher | |
| RhinoStew | Developer | |
| RhizGames | Developer | |
| Rhomita | Developer | |
| RhubarbZoo | Developer | |
| Rhys Lewis | Developer | |
| Rhys van der Waerden | Developer | |
| RhysOoge | Developer | |
| RhysRueffert | Developer | |
| RhysSullivan | Developer | |
| Rhythm & Hues | Developer | |
| RhythmInteractiveStudios | Developer | |
| RhythmLynx | Developer | |
| RiKeGF | Developer | |
| RiaDelva | Developer | |
| Riadazz | Developer | |
| Ribbon Deficiency | Developer | |
| Ric | Developer | |
| Ric Cowley | Developer | |
| Ricaburn | Developer | |
| Ricardo Cancho Niemietz | Developer | |
| Ricardo Costa | Developer | |
| Ricardo Escobar | Developer | |
| Ricardo Kuraoka | Developer | |
| Ricardo Oyon Rodriguez | Developer | |
| RicardoAguadoChena | Developer | |
| Riccardo Cafagna | Developer | |
| Riccardo Rizzo | Developer | |
| RiccardoCantoon | Developer | |
| Riccioppo | Developer | |
| RicePrezPip | Developer | |
| Rich Court | Developer | |
| Rich Geldreich | DeveloperPublisher | |
| Rich Piggy Productions | Developer | |
| Rich Whitehouse | Developer | |
| RichSG | Developer | |
| Richard | Developer | |
| Richard A. Ulsen | Developer | |
| Richard Beston | Developer | |
| Richard C Chaney | Developer | |
| Richard Cheek | Developer | |
| Richard Cochnar | Developer | |
| Richard E. Carr | Developer | |
| Richard Eter | Developer | |
| Richard Garriott | Developer | |
| Richard Garriott & Chuck Bueche | Developer | |
| Richard Gold | Developer | |
| Richard Hefter | Developer | |
| Richard Hutchison | Developer | |
| Richard Joseph | Developer | |
| Richard Knightley | Developer | |
| Richard L. Wright | Developer | |
| Richard Leinfellner | Developer | |
| Richard Lems | Developer | |
| Richard M.R. Woodward | Developer | |
| Richard Moszkowski | Developer | |
| Richard Nikula | Developer | |