| Hitbox Team | Developer | |
| Hitcents | DeveloperPublisher | |
| HitchH1k3r | Developer | |
| Hitech Productions | Developer | |
| Hitesh Sharma | Developer | |
| Hitmaker | Developer | |
| Hitmen Productions | Developer | |
| Hitmenxd | Developer | |
| Hitpoint Games | Developer | |
| Hitsoft | Publisher | |
| Hitsuji | Developer | |
| Hive Mind | Developer | |
| Hiwky | Developer | |
| Hiznopellagio | Developer | |
| HjorturJ | Developer | |
| Hlebaster | Developer | |
| Hlywa | Developer | |
| Hoang Kien | Developer | |
| Hobby Japan | DeveloperPublisher | |
| Hobby Land Soft | DeveloperPublisher | |
| Hobofeller | Developer | |
| Hoboken Pudding | Developer | |
| Hodder & Stoughton | DeveloperPublisher | |
| HodeiX | Developer | |
| Hoei Corporation | Publisher | |
| Hoei Sangyo | Developer | |
| HofeanGames | Developer | |
| HoffeeBreak | Developer | |
| Hoffmann + Associates | Publisher | |
| Hoget | Developer | |
| Hohappy | Developer | |
| HoiHoiHoi Interactive | Developer | |
| Hoijof | Developer | |
| Hoku | Developer | |
| Hokus Pokus | Developer | |
| Hokus Pokus Games | Developer | |
| Hokus-Pokus | Developer | |
| Hokusho | Developer | |
| Hokutoy | Developer | |
| Holburn Software | Publisher | |
| Hole | Developer | |
| HolicWorks | Developer | |
| HolidayExplanation | Developer | |
| Holistic Design | Developer | |
| Holistic Design, Inc. | Developer | |
| Hollow Games | Developer | |
| Hollow Ponds | DeveloperPublisher | |
| Hollow Tree Games | Developer | |
| Hollowriter | Developer | |
| Hollowzera | Developer | |
| Holly Thomas | Developer | |
| Hollyware Entertainment | Publisher | |
| Holmade Games | DeveloperPublisher | |
| Holo Games | Developer | |
| Holocronet | Developer | |
| Hologrape | Developer | |
| Hologryph | Developer | |
| Hololabs | Developer | |
| Holoscope | Developer | |
| Holospark Games | DeveloperPublisher | |
| Holotna | Developer | |
| Holy Black Cat | Developer | |
| Holy Pangolin | Developer | |
| HolyPerceval | Developer | |
| HolySkullStudios | Developer | |
| Holyshit | Developer | |
| Home Data | DeveloperPublisher | |
| Home Data Corp. | DeveloperPublisher | |
| Home Entertainment Providers | Publisher | |
| Home Entertainment Suppliers | Publisher | |
| Home Entertainment Suppliers Pty | Publisher | |
| Home Net Games | Developer | |
| Home Sick | Developer | |
| Home Sweet Pixel | DeveloperPublisher | |
| HomeTeam GameDev | Developer | |
| Homebear Studios | DeveloperPublisher | |
| Homebrew Interactive | Developer | |
| Homebrew Software | DeveloperPublisher | |
| Homecooked | Developer | |
| Homega Software | Developer | |
| Homegrown Games | Developer | |
| Homemade Homies | Developer | |
| HomieBoon | Developer | |
| HomineLudens | Developer | |
| HonGongStudio | Developer | |
| HonestDan | Developer | |
| Honestly Games | Developer | |
| Honesty | Developer | |
| Honey Ash | Developer | |
| Honey Bunny | Developer | |
| Honey Parade Games | Developer | |
| Honey.CMB | Developer | |
| Honeybee Soft | Publisher | |
| HoneybunchGames | Developer | |
| Honeycomb Interactive | Developer | |
| Honeyslug | Developer | |
| Honor Code | DeveloperPublisher | |
| HonorDEV | Developer | |
| Honwaka Soft | DeveloperPublisher | |
| Hoochoo Game Studios | Developer | |
| Hoodead | Developer | |
| HoodedBale | Developer | |
| Hoodie Games | Developer | |
| HoodieTV | Developer | |
| Hoodoo Bear | Developer | |
| Hoodoo Studios | Developer | |
| Hook Games | DeveloperPublisher | |
| HooksGame | Developer | |
| Hooksoft | Developer | |
| Hookstone | Developer | |
| Hookstone Productions | DeveloperPublisher | |
| HooliganLabs | Developer | |
| Hoopy Entertainment | DeveloperPublisher | |
| Hoork | Developer | |
| HoosMcGoose | Developer | |
| HopFrog | Developer | |
| HopScotch | Developer | |
| HopeLab | Publisher | |
| HopeMuchwood | Developer | |
| Hopeful_Dreamer | Developer | |
| Hopeless Productions | Developer | |
| Hopelight Studio | Developer | |
| Hoplite Research | DeveloperPublisher | |
| Hopoo Games | Developer | |
| HoraceRIBOUT | Developer | |
| Horashio | Developer | |
| Horatiu.nyc | Developer | |
| Horberg Productions | Developer | |
| HordeCore | Developer | |
| Hori | DeveloperPublisher | |
| Hori Electric | Developer | |
| Horizon Gamestudio | Developer | |
| Horo Bunny | Developer | |
| Horomiwa | Developer | |
| Horrific Developer | Developer | |
| Horror Soft | Developer | |
| Horror-RX | Developer | |
| HorrorBox | Developer | |
| HorrorGhost Games Official | Developer | |
| HorrorShopGames | Developer | |
| Horrorsoft | Developer | |
| HorseSoft | Developer | |
| HorseheadInteractive | Developer | |
| Horun | Developer | |
| Hoshikuzu KRNKRN | Developer | |
| Hot B | DeveloperPublisher | |
| Hot B JP | Publisher | |
| Hot B NA | Publisher | |
| Hot BJP | Publisher | |
| Hot Girls With Broken Legs | Developer | |