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- HackMaster by Kenzer & Company
- Halcyon by Neuwerld Studios
- HakobuneBy Tim Peare
- HardNova II
- HârnMaster/Hârn
- HARP by Iron Crown Enterprises - "High Adventure Role-Playing"
- HARPE - the "Hugely Adaptable (action/anime) Role-Playing Engine", Free and quite adaptable
- Hawkmoon - an addendum to the Stormbringer RPG (aka Elric!)
- Heavy Gear by Dream Pod 9
- Heretics by Wasteland Games - modern-day horror
- Hero System by Hero Games
- HeroQuest/Hero Wars
- Heroes Unlimited by Palladium Books
- Hong Kong Action Theater
- Human Occupied Landfill
- Hollow Earth Expedition by Exile Games Studio - 1930's style pulp adventure
- Hunter: The Reckoning (original World of Darkness)
- Hunter: The Vigil (New World of Darkness)
Read more about this topic: List Of Role-playing Games By Name