| Name | Types | |
|---|---|---|
| R.A.W. Entertainment | Publisher | |
| R.G.B. | DeveloperPublisher | |
| R.K. West Consulting | Developer | |
| R.W. Clayton | Developer | |
| R1G | Developer | |
| R1klus | Developer | |
| R25th | Developer | |
| R2rito | Developer | |
| R3M Infografica | Developer | |
| R3N | Developer | |
| R42003 | Developer | |
| R4FF4ELE | Developer | |
| R4zor | Developer | |
| R734 | Developer | |
| R9A | Developer | |
| RACY | Developer | |
| RAD BROTHERS | Developer | |
| RAKHA 98 | Developer | |
| RAM Software | Developer | |
| RAMUSEEELE | Developer | |
| RATURE | Developer | |
| RAW Entertainment | DeveloperPublisher | |
| RAWFISH | Developer | |
| RB-D2 | Developer | |
| RBD Interactive | Developer | |
| RBT | Developer | |
| RC Production | Developer | |
| RCMADIAX | DeveloperPublisher | |
| RDDev | Developer | |
| RDI Video Systems | Developer | |
| RDMgames | Developer | |
| RDR | Developer | |
| RE-TROPE studios | Developer | |
| REAL FAST | Developer | |
| REBORNED99 | Developer | |
| RECRAFTED STUDIOS | Developer | |
| RED BONE GAME STUDIO | Developer | |
| RED Entertainment | Developer | |
| RED FLAG SHIP | Publisher | |
| RED_KAY! | Developer | |
| REEE2752 | Developer | |
| REINBO | Developer | |
| REM 3D Models Bank | Developer | |
| RETREAM | Developer | |
| RETRO SESSION | Developer | |
| REVstudio | Developer | |
| REX PEX GAMES | Developer | |
| REZ | Developer | |
| RFC Studios | Developer | |
| RFX Interactive | Developer | |
| RFuchs | Developer | |
| RG Corporation | Developer | |
| RG Crew | Developer | |
| RG00 | Developer | |
| RGB Software | Developer | |
| RGBY_Studios | Developer | |
| RGBeans | Developer | |
| RGCD.DEV | Developer | |
| RGrinGame | Developer | |
| RIDENTEM | Developer | |
| RIP Horse | Developer | |
| RISC | Developer | |
| RISK SYSTEM | Developer | |
| RIVER CROW STUDIO | Developer | |
| RK | Developer | |
| RKiemGames | Developer | |
| RMAL | Developer | |
| RMN | Publisher | |
| RNC | DeveloperPublisher | |
| RNG Party Games | Developer | |
| RNGames | Developer | |
| RNeuron | Developer | |
| ROBOWARRIOR | Developer | |
| ROGOCAT | Developer | |
| ROLLINKUNZ! | Developer | |
| ROM16 | Developer | |
| ROMUBOY | Developer | |
| RON | Developer | |
| ROONCAVE Studios | Developer | |
| ROWAN FUTURE | Developer | |
| RPG MO | Developer | |
| RPGRabbit | Developer | |
| RPGVeir | Developer | |
| RPGgrenade | Developer | |
| RPH Studio | Developer | |
| RPM Software | Developer | |
| RPaca Studios | Developer | |
| RS34 | DeveloperPublisher | |
| RSB2000 | Developer | |
| RSBeyond | Developer | |
| RSF | Developer | |
| RSG | Developer | |
| RSalam | Developer | |
| RShinabarker | Developer | |
| RSlider | Developer | |
| RTEmit | Developer | |
| RTL | DeveloperPublisher | |
| RTL Enterprises | Publisher | |
| RTL Enterprises GmbH | Publisher | |
| RTL Entertainment | DeveloperPublisher |