| HarukaNami | Developer | |
| Haruneko | DeveloperPublisher | |
| Haruo Teshima | Developer | |
| Haruspex Games | Developer | |
| Harvest One | DeveloperPublisher | |
| Harvest VR | Developer | |
| Hasan Kosmaca | Developer | |
| Hasbro | DeveloperPublisher | |
| Hasbro Interacrtive | Publisher | |
| Hasbro Interactive | DeveloperPublisher | |
| Hasbro Interactive (Under the Atari Interactive Label) | Publisher | |
| Hasbro Interactive (Under the Atari Interactive Label)PAL,NA | Publisher | |
| Hasbro Interactive (Under the MicroProse Name) | Publisher | |
| Hasbro Interactive (as MicroProse) | Publisher | |
| Hasbro Interactive JP | Publisher | |
| Hasbro Interactive, Inc. | Publisher | |
| Haschi | Developer | |
| HashSythe | Developer | |
| Hasi-b | Developer | |
| Haslus | Developer | |
| Hasnain Noorani | Developer | |
| HastilyAssembled | Developer | |
| HasuKimchi | Developer | |
| Hat on a Flower Studio | Developer | |
| HatBanditGames | Developer | |
| HataIkeda | Developer | |
| Hatcap Studios Canada | Developer | |
| Hategan Valentin | Developer | |
| Hatem Amer | Developer | |
| Hatinh Interactive | Publisher | |
| Hats | Developer | |
| Hatsimufu | Developer | |
| HatsuStudios | Developer | |
| HatsuneMiku101 | Developer | |
| Hattoman | Developer | |
| Haubanero | Developer | |
| Haunt Pun | Developer | |
| Haunted Bees Productions | DeveloperPublisher | |
| Haunted Tie | Publisher | |
| Haunted Window | Developer | |
| Haus Teknikka | Developer | |
| Havoc Games | Developer | |
| Hawell | Developer | |
| HawkSandwich | Developer | |
| Hawkes | Developer | |
| Hawkie123 | Developer | |
| Haxoft | DeveloperPublisher | |
| Haxor | Developer | |
| Hayashi-Gumi | DeveloperPublisher | |
| Hayden King | Developer | |
| Hayden Platt | Developer | |
| Hayden Software | DeveloperPublisher | |
| Haydn Hachijo | Developer | |
| Hayes2D | Developer | |
| Hayo | Developer | |
| Haypers | Developer | |
| Hazel-Rah | Developer | |
| Hazelight Studios | Developer | |
| Hazem Huzayen | Developer | |
| Hazu @ Skelebun Studios | Developer | |
| Hazwald | Developer | |
| HazyGD | Developer | |
| Hazzanger | Developer | |
| Hazzote | Developer | |
| HeWhoYawns | Developer | |
| Head Games Publishing | Publisher | |
| HeadCrab64 | Developer | |
| HeadGames Publishing | DeveloperPublisher | |
| HeadGames Publishing, Inc. | DeveloperPublisher | |
| HeadHuntersGames | Developer | |
| HeadZerg | Developer | |
| Headbang Club | DeveloperPublisher | |
| Headcannon | Developer | |
| Headfirst Productions | Developer | |
| Headgames | Developer | |
| Headgate Studios | Developer | |
| Headlands Press | Publisher | |
| Headless Studio | Developer | |
| Headlock | Developer | |
| Headmade Games | Developer | |
| Headroom | Developer | |
| Headstrong Games | Developer | |
| Headup Games | DeveloperPublisher | |
| Healy | Developer | |
| Heart Beat | Developer | |
| Heart Fragment | Developer | |
| Heart Machine | DeveloperPublisher | |
| Heart Shaped Games | Developer | |
| Heart Soft | DeveloperPublisher | |
| Heart-Bit | Developer | |
| HeartForge | Developer | |
| HeartLamp | Developer | |
| Heartbeat | DeveloperPublisher | |
| Heartbit Interactive | DeveloperPublisher | |
| Hearts Technology | DeveloperPublisher | |
| Hearty Robin | DeveloperPublisher | |
| Hearty RobinJP | Publisher | |
| HeatPhoenix | Developer | |
| HeathCleaf | Developer | |
| Heather | Developer | |
| Heather Alexandra | Developer | |
| Heather Flowers | Developer | |
| Heathro | Developer | |
| Heatwave Studios | Developer | |
| Heaven Tales | Developer | |
| Heavenly47 | Developer | |
| Heavy Fun Studio | Developer | |
| Heavy Iron Studio | Developer | |
| Heavy Iron Studios | DeveloperPublisher | |
| Heavy sheep games | Developer | |
| HeavyNano | Developer | |
| Hebdogiciael | Publisher | |
| HebitsukaiMetal | Developer | |
| Hechi | Developer | |
| Heckin Games | Developer | |
| Heckin Viv | Developer | |
| Hecking Heck | Developer | |
| Hect | DeveloperPublisher | |
| Hect Co. | Developer | |
| Hect JP | Publisher | |
| HectJP | Publisher | |
| Hectagon | Developer | |
| Hectoliters | Developer | |
| Hector Pulido | Developer | |
| HectorTL | Developer | |
| HectorXD | Developer | |
| HecyCBET | Developer | |
| Hedgehog Studios | Developer | |
| Hedi Dev Studio | Developer | |
| HedonisticActor | Developer | |
| Heg28 | Developer | |
| Hegemege | Developer | |
| Heideland GameWork | DeveloperPublisher | |
| Heideland GameWorks | DeveloperPublisher | |
| Heiden | Developer | |
| Heiden_minigames | Developer | |
| Heidi Erwin | Developer | |
| Heidy Motta | Developer | |
| Heiklion | Developer | |
| Heine | Developer | |
| Heiwa | Developer | |
| Heiwa Corporation | Developer | |
| Hekaton Studio | Developer | |
| Hekkoto | Developer | |
| Hekla Björk Unnardóttir | Developer | |
| HeladoDePistacho | Developer | |
| Helen | Developer | |
| Helena Tanco Garcia | Developer | |
| HelenaTacy | Developer | |
| HelioStrike | Developer | |