| Reverse MP Absorb on Evil and Undead Monsters | Kethinov | Secret of Mana | Role Playing > Action RPG | SNES | GP | Improvement | 1.1 | 09 Jun 2019 |
| Revenge of the Red Falcon | Trax | Contra | Action > Shooter | NES | G, L, T | Complete | 1.0 | 15 Jan 2016 |
| Revenge of Shinobi SRAM | BillyTime! Games | The Revenge of Shinobi | Action > Platformer | GEN | O | Improvement | 2.0 | 14 Jun 2021 |
| Revenge of Shinobi - Better Jumping | BillyTime! Games | The Revenge of Shinobi | Action > Platformer | GEN | GP | Improvement | 1.1 | 09 Dec 2020 |
| Revelations: The Demon Slayer debug menu patch | Revenant | Revelations: The Demon Slayer | Role Playing | GB | O | Improvement | 1.0 | 02 Feb 2019 |
| Revelations - The Demon Slayer Improvement | S. K. Dumbbus | Revelations: The Demon Slayer | Role Playing | GB | G | Improvement | 1.0 | 22 Jun 2011 |
| ReturnerScum's Final Fantasy VI | ReturnerScum | Final Fantasy III | Role Playing | SNES | G, S, T, GP | Addendum | 0.99 | 23 Mar 2015 |
| Returner's Day Off | Leet Sketcher | Final Fantasy III | Role Playing | SNES | L, O | Bug Fix | 1.4 | 13 Jul 2017 |
| Return to Castle Wily | Jriva | Mega Man 3 | Action > Platformer | NES | G, L, GP | Complete | 1.0 | 18 Jul 2019 |
| Return of the Dark Sorcerer | Mike Ferrell | Final Fantasy III | Role Playing | SNES | G, S, L, T, GP | Complete | 2.8 | 09 Mar 2022 |
| Return of Double Dragon Unstable Fast | Nesrocks | Super Double Dragon | Action | SNES | GP | Improvement | 1.0 | 10 Dec 2018 |
| Return of Double Dragon Music Fix | hiro1112 | Super Double Dragon | Action | SNES | S | Improvement | 1.0 | 22 Dec 2006 |
| Return of Double Dragon - Kencho hacks | Jesús Alonso Abad | Super Double Dragon | Action | SNES | GP | Improvement | 1.0 | 02 Jan 2017 |
| Retroid | ProjectXVIII | Super Metroid | Action Adventure | SNES | L, GP, O | Complete | 1.01 | 08 Sep 2016 |
| Retro Pokemon FireRed Mix | loosernerdy | Pokémon: FireRed Version | Role Playing | GBA | G, GP | Improvement | 1.0 | 03 Jun 2019 |
| Retro Game Challenge Undub | newtypeSaint | Retro Game Challenge | Action | NDS | S | Improvement | 1.0 | 30 Sep 2019 |
| Ret's Escape Puzzle World | Excel | Super Mario Bros. | Action > Platformer | NES | G, L, GP | Complete | 1.0 | 01 Jan 2004 |
| Restore Unused Fanfares | Kethinov | Secret of Mana | Role Playing > Action RPG | SNES | S | Improvement | 1.2 | 30 Jun 2018 |
| Resilient Morph | HatZen08 | Final Fantasy III | Role Playing | SNES | GP | Improvement | 2.2 | 07 Feb 2013 |
| Resident Evil: True Director's Cut | Deli295 | Resident Evil: Director's Cut | Action Adventure | PSX | G, S, L, O | Improvement | 0.4 | 04 Dec 2021 |
