Companies starting with R
- Rabbit Hole Games
- Rad Codex
- Radian Games
- Radiangames
- Radical Entertainment
- Radon Labs
- Ragequit Corporation
- RageSquid
- Raiser Games
- Randwerk
- Rap2h
- Rare
- Raspberry Pi
- Ratata Arts
- Ratloop Games Canada
- Raven Software
- Ravenscourt Games
- Raw Fury
- Razer
- Re-Logic
- Ready At Dawn
- Readyverse Studios
- Reagent Games
- Reality Pump Studios
- Realmforge Studios
- Realtime Worlds
- Rebel Wolves
- Rebellion
- Rebellion Developments
- Red 5 Studios
- Red Barrels Studio
- Red Candle Games
- Red Dot Games
- Red Hook Studios
- Red Nexus Games
- Red Redemption
- Red Square Games
- Red Storm Entertainment
- Red Thread Games
- Redacted Studios
- Redbeet Interactive
- Redemption Road Games
- RedLynx
- RedOctane
- ReedPop
- Reef Entertainment
- Reflections Interactive
- Reflector Entertainment
- Reikon Games
- Related Designs
- Relic Entertainment
- Remedy
- Remedy Entertainment
- Remnant games studio
- Remoob
- Rename Studio
- Renegade Kid
- Replicant D6
- Respawn Entertainment
- Retrovibe
- Reverge Labs
- Revolution Software
- RGG Studio
- Rias
- Ridgeline Games
- Riot Forge
- Riot Games
- Rising Star Games
- Ritual Entertainment
- Rivernotch Game Studio
- Riyo Studio
- Road Turtle Games
- Roadhouse Interactive
- Roberts Space Industries
- Roblox Corporation
- Roboatino
- Robosoft Technologies
- Robot Entertainment
- Robot Teddy
- Roccat
- Rocket Adrift Games
- Rocket Rat Games
- Rocketcat Games
- ROCKFISH Games
- Rockstar
- Rockstar Games
- Rockstar Leeds
- Rockstar London
- Rockstar North
- Rockstar San Diego
- Rockstar Toronto
- Rockstar Vancouver
- Rockstar Vienna
- Rocksteady Studios
- Rodeo Games
- Rogue Entertainment
- Rogue Factor
- Rogue Games
- Rogueside
- Rokaplay
- Roll7
- Romero Games
- Ronimo Games
- Room 8 Studio
- room6
- Rose City Games
- rose-engine
- Rotoscope Studios
- Round 8 Studio
- Roundhouse Studios
- Route 59
- Royal Kludge
- Ruffian Games
- Runestorm
- Runic Games
- Rusty Lake
- Ryu Ga Gotoku Studio