| Langlock Mod | DeXiaZ | Harry Potter and the Philosopher's Stone | Action Adventure | PS2 | S | Improvement | 1.0 | 07 Jun 2021 |
| Harvest Moon - Intuitive Ranch Master | mattdog1000000 | Harvest Moon | Simulation | SNES | GP, O | Improvement | 2.5.1 | 02 Oct 2022 |
| Harvest Moon - Increased Day time | mattdog1000000 | Harvest Moon | Simulation | SNES | GP | Addendum | 1.0 | 07 Apr 2022 |
| Harvest Moon GBC - Progress Diary | Ezzypixel | Harvest Moon | Simulation | GB | O | Improvement | 1.0 | 11 Mar 2023 |
| A Very Prideful Harvest Moon Animal Parade | CowEgg | Harvest Moon Animal Parade | Role Playing | WII | G, T, GP | Improvement | 1.0 | 26 Aug 2021 |
| Harvest Moon DS: Claire & Jill Version | unx | Harvest Moon DS | Simulation | NDS | G | Improvement | 1.0 | 17 Dec 2017 |
| Harvest Moon DS Cute - Pete Version | unx | Harvest Moon DS Cute | Simulation | NDS | G | Improvement | 1.0 | 23 Dec 2017 |
| Harvest Moon: A Proud Life | seangibbz | Harvest Moon: A Wonderful Life | Role Playing | GC | G, T, GP | Improvement | 1.0 | 12 Oct 2019 |
| Region Lockout Removal | LucianoTheWindowsFan | Hashire Hebereke | Racing | SNES | O | Improvement | 1.0 | 04 Aug 2020 |
| Hack Voice Sampling | upsilandre | Heavy Barrel | Action > Shooter | NES | S | Improvement | 1.0 | 19 Jun 2022 |
| Heavy Barrel (U) [!] - Color hack. | wolfamancer97 | Heavy Barrel | Action > Shooter | NES | G, T, O | Complete | Final | 31 Jul 2021 |
| Contra 7 EX (Heavy Contra) | Hammer☆Keyboard☆Studios | Heavy Barrel | Action > Shooter | NES | G, T, O | Improvement | 1.0 | 12 Jul 2021 |
| Hebereke's Popoon - Pleasant Edition | LucianoTheWindowsFan | Hebereke's Popoon | Puzzle | SNES | S | Improvement | 1.0 | 05 May 2021 |
| Hellfire MD2 Music Fix | Justin Gibbins | Hellfire | Action > Shooter | GEN | S | Improvement | 1.0 | 21 Oct 2022 |
| Hello Kitty World NES Translated | Darkdata | Hello Kitty World | Action > Platformer | NES | G, T | Improvement | 1.01 | 21 Oct 2007 |
| Heracles no Eikou IV - text speed | rainponcho | Heracles no Eikou IV: Kamigami Kara no Okurimono | Role Playing | SNES | GP | Improvement | 0.1 | 22 Apr 2017 |
| Hero Quest (Late Proto - NTSC Conversion) | famiclone | Hero Quest | Role Playing > Action RPG | NES | S | Improvement | 1.0 | 18 Jul 2020 |
| Eisfrei Demo Collection | Hugues Johnson | Herzog Zwei | Strategy | GEN | G, GP | Improvement | 1.0 | 04 May 2008 |
| Herzog Zwei - Accessibility Patch | Carl Dixon | Herzog Zwei | Strategy | GEN | G, T | Improvement | 1.01 | 03 Feb 2019 |
| High Seas Havoc - Can of Fish | Penta Penguin | High Seas Havoc | Action > Platformer | GEN | GP | Improvement | 1.0 | 13 Dec 2013 |
