| title | developer | year | platform | | pop. |
|---|
| Quantum Conscience | Woodsy Studio | 2014 | Linux | adventure Science Fiction | | | label | |
| Radikal Bikers | Gaelco? | 1998 | GBC | racing/driving | image | | label | |
| Rage of Mages | Nival Entertainment | 1998 | Windows | strategy role-play Fantasy | image | | label | |
| Rage of Mages II: Necromancer | Monolith Productions;cdv Software Entertainment | 1999 | Windows | strategy role-play Fantasy | image | | label | |
| Ragnarok Online | Gravity Interactive | 2002 | Windows | role-play Fantasy | image | | label | |
| Rainbow Six: Vegas 2 | Ubisoft Montreal Studios | 2008 | Windows | action/reflex shooter | image | | label | |
| Rakion | NetCraft;softnyx | 2005 | Windows | action/reflex role-play Fantasy | | | label | |
| Rampage | Activision | 1989 | Tandy Coco | beat 'em up platformer | image | | label | |
| Rappelz | nFlavor | 2006 | Windows | action/reflex role-play Fantasy | image | | label | |
| Ratings War | Choice of Games | 2015 | Linux | role-play Science Fiction | | | label | |
| Ravenloft: Stone Prophet | Dreamforge Intertainment | 2015 | Linux | role-play Fantasy | | | label | |
| Ravenloft: Strahd's Possession | Dreamforge Intertainment | 2015 | Linux | role-play Fantasy | | | label | |
| Realm of the Diggle Gods | Gaslamp Games | 2012 | Linux | role-play | | | label | |
| Rebuild 2 | - | 2011 | Flash | strategy turn-based | | | label | |
| Red Eclipse | Red Eclipse Team | 2012 | Linux | shooter | | | label | |
| Redshirt | The Tiniest Shark | 2013 | Windows | simulation Humorous | image | subject | label | |
| Redshirt | The Tiniest Shark | 2013 | Linux | simulation Humorous | | | label | |
| Remnant: From the Ashes | Gunfire Games | 2019 | Windows | action/reflex Fantasy | | | label | |
| Requiem Online | Gravity Interactive | 2007 | Windows | action/reflex role-play Fantasy | image | | label | |
| Resident Evil | Capcom Entertainment | 1996 | PS | adventure Horror | image | subject | label | |
| Resident Evil 2 | Capcom | 1998 | PS | adventure Horror | image | subject | label | |
| Resident Evil 2 | Capcom Production Studio 4 | 1999 | N64 | action/reflex adventure Horror | image | subject | label | |
| Resident Evil 2 | Capcom | 2019 | Windows | action/reflex shooter Horror | image | subject | label | |
| Resident Evil 2 Remake | Capcom | 2019 | PS4 | action/reflex shooter Horror | | | label | |
| Return to Ringworld | Tsunami Media | 1994 | MS-DOS | adventure | image | subject | label | |
| Revolution Diabolique | Choice of Games | 2022 | Linux | adventure role-play | | | label | |
| Revolution: Virtual Playspace | Dragom | 2015 | Linux | strategy board game role-play Fantasy | | subject | label | |
| RF Online | CCR | 2006 | Windows | action/reflex role-play Fantasy | image | | label | |
| Rift | Trion Worlds | 2011 | Windows | action/reflex role-play Fantasy | image | subject | label | |
| Robot Alchemic Drive | Sandlot | 2002 | PS2 | action/reflex Science Fiction | image | subject | label | |
| Rogue | author | 1982 | BSD | adventure role-play | | | label | |
| Rogue Empire: Dungeon Crawler RPG | Portal Entertainment | 2018 | Linux | | | | label | |
| Rogue Survivor | - | 2010 | Windows | role-play | image | | label | |
| Rolling Thunder 2 | Namco | 1991 | Mega Drive | platformer shooter | image | subject | label | |
| RomanoXReader - Ti Amo | author | 2013 | Linux | adventure | | | label | |
| Roommates | Winter Wolves | 2014 | Linux | adventure | | subject | label | |
| RuneScape | Jagex | 2004 | Internet Only | adventure role-play Fantasy | image | | label | |
| RuneScape | Jagex | ? | Windows | adventure role-play Fantasy | | | label | |
| RuneScape | Jagex | 2012 | Linux | adventure role-play Fantasy | | | label | |
| RuneScape NXT | Jagex | 2016 | Linux | adventure role-play Fantasy | | | label | |
