| Rail World (2018) | 16,882 | 81 |
| Railfan: Chicago Transit Authority Brown Line (2006) | 185,469 | 37 |
| RailGods of Hysterra (2025) | 124,763 | 149 |
| RAILGRADE (2023) | 0 | 0 |
| Railgunners (2023) | 451,502 | 66 |
| Railink (2024) | 159 | 1 |
| Railroad Corporation (2019) | 2,384,145 | 1,367 |
| Railroad Corporation 2 (2024) | 1,748,067 | 329 |
| Railroad Empire (1988) | 67,623 | 188 |
| Railroad Ink Challenge (2021) | 116,455 | 52 |
| Railroad Pioneer (2003) | 187,316 | 118 |
| Railroad Rush (2009) | 0 | 0 |
| Railroad Tycoon (1990) | 420,045 | 404 |
| Railroad Tycoon 3 (2003) | 2,828,108 | 928 |
| Railroad Tycoon Deluxe (1993) | 17,414 | 24 |
| Railroad Tycoon II (1998) | 1,070,055 | 1,090 |
| Railroads & Catacombs (2023) | 164,232 | 258 |
| Railroads Online (2024) | 17,900,571 | 4,477 |
| Railway Empire (2018) | 23,146,180 | 11,995 |
| Railway Empire 2 (2023) | 6,923,277 | 7,409 |
| Railways: Train Simulator (2023) | 56,833,077 | 2,043 |
| Raimais (1988) | 118,232 | 113 |
| Raimodula (2023) | 3,547 | 13 |
| Rain (2013) | 5,891,912 | 1,660 |
| Rain and Respite (2024) | 0 | 0 |
| Rain and the Wolf (2024) | 0 | 0 |
| Rain Drops (2008) | 69,452,368 | 596 |
| Rain of Arrows (2021) | 50,945 | 1 |
| Rain of Pumpkins (2017) | 0 | 0 |
| Rain of Reflections: Chapter 1 - Set Free (2019) | 58,164 | 75 |
| Rain of Reflections: Set Free (2019) | 0 | 0 |
| Rain On Your Parade (2021) | 12,411,777 | 2,557 |
| RAIN Project (2018) | 3,636 | 28 |
| Rain Shower (1983) | 89,216 | 98 |
| The Rain Spirit : Code Breaker (2024) | 875 | 6 |
| Rain World (2017) | 84,834,257 | 30,797 |
| Rainblood Chronicles: Mirage (2013) | 18,828 | 80 |
| Rainblood: Town of Death (2008) | 43,155 | 5 |
| Rainbow Billy: The Curse of the Leviathan (2021) | 2,380,632 | 1,103 |
| Rainbow Cloud: A GAY RPG (2025) | 0 | 0 |
| Rainbow Cotton (2000) | 286,037 | 330 |
| RAINBOW CREAM SAGA (2024) | 5 | 1 |
| Rainbow Dreams (2020) | 51,194,152 | 277 |
| Rainbow Gate (2026) | 3,244 | 21 |
| Rainbow Heights Academy: Year 1 (2022) | 6 | 2 |
| RAINBOW HIGH: RUNWAY RUSH (2023) | 420,117 | 128 |
| Rainbow Invaders (2006) | 407 | 15 |
| Rainbow Islands (1988) | 2,990,353 | 1,027 |
| Rainbow Islands Evolution (2007) | 59,908 | 33 |
| Rainbow Islands Extra (1990) | 244,444 | 120 |
| Rainbow Islands Revolution (2005) | 77,060 | 58 |
| Rainbow Islands: The Story of Bubble Bobble 2 (1987) | 2,088,057 | 1,088 |
| Rainbow Islands: Towering Adventure! (2009) | 30,959 | 25 |
| Rainbow Moon (2012) | 1,241,265 | 1,337 |
| Rainbow Reactor (2019) | 49,556 | 79 |
| Rainbow Run (2019) | 316,813 | 85 |
| Rainbow Sea (2024) | 4,867 | 9 |
| Rainbow Six (1998) | 126,228,756 | 20,864 |
| Rainbow Six 3: Raven Shield (2003) | 12,230,927 | 4,024 |
| Rainbow Six Extraction (2023) | 106,350,281 | 39,794 |
| Rainbow Six Siege (2015) | 21,841,733,786 | 3,157,244 |
| Rainbow Six: Critical Hour (2006) | 1,064 | 6 |
| Rainbow Six: Lockdown (2005) | 2,866,443 | 1,106 |
| Rainbow Six: Rogue Spear (1999) | 3,147,517 | 1,318 |
| Rainbow Six: Shadow Vanguard (2011) | 3,009,342 | 554 |
| Rainbow Six: Vegas (2006) | 18,872,791 | 7,161 |
| Rainbow Six: Vegas 2 (2008) | 38,654,147 | 12,053 |
| Rainbow Skies (2018) | 381,310 | 884 |
| Rainbow Walker (1983) | 18,701 | 19 |
| Rainbow Web (2005) | 104,764 | 126 |
| The Rainbow World (2019) | 7,116,898 | 94 |
| Rainbow Yggdrasil (2024) | 5,496 | 5 |
| The Raincoat Man (2023) | 3,515 | 13 |
| Raindrop Umbrella (2025) | 0 | 0 |
| Raining Blobs (2016) | 12,738 | 111 |
