| h264 | 3 | H.264 | Software concepts |
| haafsgameengine | 3 | Haaf's Game Engine | Software themes |
| hackandslash | 460 | Hack and Slash | Game genre themes |
| hackers | 34 | Hackers | Creatures entities |
| hacking | 238 | Hacking | Activities concepts |
| hackshield | 7 | HackShield | Software entities |
| hadrosaurs | 3 | Hadrosaurs | Creatures entities |
| haggling | 13 | Haggling | Activities themes |
| hags | 11 | Hags | Creatures themes |
| haikuos | 387 | Haiku OS | Software themes |
| hajimenoippo | 8 | Rocky Joe | Cartoon series |
| halflife | 45 | Half-Life | Video game series |
| halflings | 137 | Halflings | Creatures themes |
| halfpipe | 13 | Half-pipe | Other entities |
| halftrack | 3 | Halftrack | Vehicles themes |
| halftracks | 6 | Half-tracks | Vehicles entities |
| halloween | 36 | Halloween | Culture themes |
| halloweenharry-series | 2 | Halloween Harry | Video game series |
| hallucinations | 55 | Hallucinations | Other concepts |
| halma | 4 | Halma | Traditional entities |
| halo-engine | 8 | Halo engine | Software entities |
| halo-series | 19 | Halo | Video game series |
| hammerandanvil | 1 | Hammer and anvil NPC tactics | Other themes |
| hammerspace | 49 | Hammerspace | Other concepts |
| hammerthrow | 37 | Hammer throw | Sport themes |
| hammerwatch-series | 6 | Hammerwatch | Video game series |
| hamsterclub | 6 | Hamster Club | Video game series |
| hamstermonogatari | 7 | Hamster Monogatari | Video game series |
| hamsterparadise | 5 | Hamster Paradise | Video game series |
| hamtaro | 7 | Hamtaro | Cartoon series |
| hanabira-series | 6 | Sono Hanabira ni Kuchizuke wo | Video game series |
| hanafuda | 65 | Hanafuda | Traditional themes |
| handandahalfweapons | 17 | Hand-and-a-half weapons | Tools themes |
| handball | 7 | Team handball | Sport themes |
| handcannons | 17 | Hand cannons | Tools themes |
| handcar | 6 | Handcar | Vehicles entities |
| handdrawn | 125 | Hand-drawn | Cartoon themes |
| handguns | 1022 | Handguns | Tools entities |
| hands | 19 | Disembodied hands | Creatures entities |
| hangar | 7 | Hangar | Locations themes |
| hangglider | 18 | Hang glider | Vehicles entities |
| hangman | 174 | Hangman | Traditional themes |
| hanjukueiyuu | 5 | Hanjuku Eiyuu | Video game series |
| hannabarbera | 182 | Hanna-Barbera | Cartoon series |
| hannahmontana | 12 | Hannah Montana | Culture series |
| hanse | 18 | The Hanseatic League | Historical entities |
| hapticfeedback | 39 | Haptic feedback | Hardware concepts |
| hard | 123 | Hard | Video game concepts |
| hardfantasy | 3 | Hard fantasy | Fiction genre themes |
| hardscifi | 13 | Hard Sci-Fi | Fiction genre themes |
| hardtruck-series | 3 | Hard Truck | Video game series |
| harem | 5 | Harem | Other themes |
| harmfultouch | 617 | Harmful touch | Video game concepts |
| harmonyvsdiscipline | 2 | Harmony versus Discipline | Culture concepts |
| harobots | 3 | Harobots | Video game series |
| harpies | 45 | Harpies | Creatures themes |
| harrypotter | 81 | Harry Potter | Culture series |
| harvesters | 98 | Harvesters | Creatures themes |
| harvestmoon | 39 | Harvest Moon | Video game series |
| haskell | 7 | Haskell Computer Language | Software themes |
| hasmusic | 5 | Has Music | Video game concepts |
| hastilude | 23 | Hastilude | Sport themes |
| hatchers | 30 | Hatchers | Creatures themes |
| hategroups | 5 | Hate groups | Other themes |
| hatsunemiku | 13 | Hatsune Miku | Video game series |
| haunting | 24 | Haunting | Locations themes |
| havokphysics | 318 | Havok Physics | Software entities |
| hawaii | 16 | Hawaii, USA | Locations themes |
| hawknl | 4 | HawkNL™ | Software themes |
| hawx-series | 6 | HAWX | Video game series |
| haxeflixel | 10 | HaxeFlixel | Software entities |
| haxelanguage | 8 | Haxe programming language | Software concepts |
| hayaomiyazaki | 7 | Hayao Miyazaki | Cartoon entities |
| hazardouspowers | 52 | Hazardous powers | Video game concepts |
| hazmatsuit | 27 | Hazmat suit | Other entities |
| hbao | 11 | Horizon-Based Ambient Occlusion | Software entities |
| hdao | 1 | High Definition Ambient Occlusion | Software concepts |
| hddvd | 1 | Media: HD-DVD | Hardware entities |
| hdrdisplay | 3 | HDR display | Hardware themes |
| hdrlighting | 37 | High Dynamic Range Lighting | Software concepts |
| headbob | 3 | Head bob | Video game concepts |
| headhunter | 4 | Headhunter | Video game series |
| headless | 21 | Headless | Creatures themes |
| headonlike | 25 | Head On-like | Game genre themes |
| heads | 94 | Disembodied heads | Creatures themes |
| headswapping | 13 | Head swapping | Software concepts |
| headtracking | 33 | Head tracking | Hardware concepts |
| healing | 94 | Healing | Activities themes |
| healing-active | 16 | Active healing | Video game concepts |
| healing-delayed | 7 | Delayed healing | Video game concepts |
| healing-gradual | 16 | Gradual healing | Video game concepts |
| healing-instant | 11 | Instant healing | Video game concepts |
| healingdevice | 40 | Healing device | Tools themes |
| healingfinishers | 20 | Healing finishers | Video game concepts |
| healingitems | 724 | Healing items | Other concepts |
| healingstations | 189 | Healing stations | Other concepts |
| health | 6 | Health | Video game concepts |
| health-multi | 10 | Multiple health pools | Video game concepts |
| health-unusual | 7 | Unusual health | Video game concepts |
| healthbuffer | 95 | Health buffer | Other concepts |
| healthcare | 45 | Health care | Other themes |
| healthdraining | 41 | Health draining | Activities themes |
| healthdrops | 89 | Health drops | Video game concepts |
| healthpickups | 352 | Health pickups | Other entities |
| healthregen | 531 | Health regeneration | Other concepts |
| healthregen-activitylevel | 1 | Health regeneration: Activity Levels | Other concepts |
| healthregen-fast | 143 | Health regeneration: Fast / Instant | Video game concepts |
| healthregen-moderate | 26 | Health regeneration: Moderate | Video game concepts |
| healthregen-slow | 40 | Health regeneration: Slow | Other concepts |
| healthregen-stunted | 54 | Health regeneration: Stunted | Other concepts |
| healthvisualization | 26 | Health visualization | Video game concepts |
| healthwarning | 143 | Health warning | Video game concepts |
| hearts | 24 | Hearts | Other entities |
| heartscardgame | 37 | Hearts card game. | Traditional themes |
| heartsofiron-series | 5 | Hearts of Iron | Video game series |
| heat.net | 3 | Heat.net | Software themes |
| heathaze | 24 | Heat haze | Other entities |
| heathh89 | 17 | Heath H-89 Platform | Hardware themes |
| heattransfer | 6 | Heat transfer | Other concepts |
| heavyduty-engine | 2 | Heavy Duty | Software entities |
| heavygear-series | 3 | Heavy Gear | Video game series |
| heavymetal | 4 | Heavy Metal magazine | Culture series |
| heavyspecularity | 19 | Heavy specularity | Other themes |
| heavyvehicle | 4 | Heavy vehicle | Vehicles themes |
| heavyweather | 16 | Heavy weather | Locations themes |
| hebephilia | 2 | Hebephilia | Culture concepts |
| hebereke-series | 9 | Hebereke | Video game series |
| hedgehogs | 20 | Hedgehogs | Creatures entities |
| heiankyoalienlike | 8 | Heiankyo Alien-like | Game genre themes |
| heianperiod | 1 | Heian Period | Historical themes |
| heightmap | 1 | Heightmap | Software concepts |
| heldjump | 3 | Held jump | Other concepts |
| helicopter | 654 | Helicopter | Vehicles entities |
| helicopter-ah1-cobra | 18 | Helicopter: AH-1 Cobra | Vehicles themes |
| helicopter-ah64-apache | 51 | Helicopter: AH-64 Apache | Vehicles entities |
| helicopter-ka50-hokum | 4 | Helicopter: Ka-50 Hokum | Vehicles entities |
| helicopter-mi24-hind | 3 | Helicopter: Mi-24 Hind | Vehicles entities |
| helicopter-mi28-havoc | 1 | Helicopter-mi28-havoc | Vehicles themes |
| helicopter-rah66-comanche | 14 | Helicopter: RAH-66 Comanche | Vehicles themes |
| helicopter-uh1-iroquois | 9 | Helicopter: UH-1 Iroquois | Vehicles entities |
| helicopters | 261 | Helicopters | Vehicles themes |
| hell | 113 | Hell | Locations themes |
| hellboy | 5 | Hellboy | Culture series |
| hellhounds | 27 | Hellhounds | Creatures themes |
| hellokitty | 59 | Hello Kitty | Cartoon series |
| hellraiser | 2 | Hellraiser | Culture series |
| hellscape | 46 | Hellscape | Locations themes |
| helming | 4 | Helming | Activities themes |
| heracles | 34 | Heracles | Culture series |
| herbs | 9 | Herbs | Other entities |
| herding | 11 | Herding | Activities themes |
| heretichexen | 24 | Heretic and HeXen | Video game series |
| heretickingdoms-series | 3 | Heretic Kingdoms | Video game series |
| heretics | 2 | Heretics | Creatures themes |
| hermitcrabs | 7 | Hermit Crabs | Creatures entities |
| hero-theme | 10 | Hero theme | Culture themes |
| herodefense | 1 | Hero Defense | Game genre themes |
| heroengine | 7 | HeroEngine | Software entities |
| heroes | 26 | Heroes | Creatures themes |
| heroesofdragonlance | 24 | Heroes of Dragonlance | Video game series |
| heroic | 9 | Heroic | Culture concepts |
| heroicfantasy | 6 | Heroic fantasy | Fiction genre themes |
| heroineanthem-series | 3 | Heroine Anthem | Video game series |
| herons | 2 | Herons | Creatures themes |
| heroprotagonist | 173 | Hero protagonist | Creatures themes |
| heroquest | 12 | HeroQuest | Traditional entities |
| heroschool | 5 | Hero school | Locations themes |
| herzegovina | 2 | Herzegovina | Locations entities |
| herzog-series | 4 | Herzog | Video game series |
| hexapeds | 33 | Hexapeds | Creatures themes |
| hicks | 5 | Hicks | Creatures entities |
| hiddenattributes | 46 | Hidden attributes | Video game concepts |
| hiddenitemstats | 13 | Hidden item stats | Video game concepts |
| hiddenmotives | 3 | Hidden motives | Culture concepts |
| hiddenobject | 169 | Hidden object | Game genre themes |
| hiddenvillage | 5 | Hidden village | Locations themes |
| hideandseek | 2 | Hide and Seek | Activities themes |
| hideout | 16 | Hideout | Locations themes |
| hiding | 72 | Hiding | Activities themes |
| highbornprotagonist | 187 | High-born protagonist | Creatures themes |
| higherandlower | 10 | Higher & Lower card game | Traditional themes |
| highfantasy | 179 | High fantasy | Fiction genre themes |
| highjump | 68 | High Jump | Sport themes |
| highlander | 7 | Highlander | Culture series |
| highway | 1 | Highway | Locations entities |
| hijacking | 80 | Hijacking | Activities themes |
| hikaru-hw | 6 | Sega Hikaru arcade hardware | Hardware entities |
| hillland | 63 | Hill land | Locations themes |
| hintsystem | 80 | Hint system | Video game concepts |
| hippies | 5 | Hippies | Creatures themes |
| hippo | 21 | Hippopotamus | Creatures themes |
| hirelings | 24 | Hirelings | Other themes |
| hires | 117 | High resolution | Hardware themes |
| hiryunoken | 16 | Hiryū no Ken | Video game series |
| hisdarkmaterials | 7 | His Dark Materials | Culture series |
| hispanicprotagonist | 10 | Hispanic protagonist | Creatures themes |
| historicalfantasy | 47 | Historical fantasy | Fiction genre themes |
| historicalfiction | 21 | Historical fiction | Fiction genre themes |
| historicallyinaccurate | 17 | Historically inaccurate | Historical themes |
| historicfiction | 4 | Historic fiction | Fiction genre concepts |
| historicfigure | 15 | Historic figure | Historical themes |
| historytv | 9 | The History Channel | Culture entities |
| hitboxes | 1 | Hit-boxes | Software concepts |
| hitchance | 168 | Hit chance | Video game concepts |
| hitconfirmation | 13 | Hit confirmation | Video game concepts |
| hitflash | 23 | Hit flash | Video game concepts |
| hitman-series | 25 | Hitman | Video game series |
| hitmoderation | 61 | Hit moderation | Video game concepts |
| hitscan | 47 | Hitscan | Video game concepts |
| hive | 33 | Hive | Locations themes |
| hoarding | 65 | Hoarding | Activities themes |
| hobbyist | 13 | Hobbyist game | Video game concepts |
| hockey | 227 | Hockey | Sport themes |
| hogansalley | 14 | Hogan's Alley | Game genre themes |
| hokutonoken | 32 | Hokuto no Ken | Cartoon series |
| holdtaptoggle | 4 | Hold/tap toggle | Other concepts |
| holiday | 152 | Holiday | Culture themes |
| holland | 4 | Holland, Netherlands | Locations entities |
| hollowworld | 5 | Hollow world | Locations themes |
| hollywood | 12 | Hollywood licensed | Culture themes |
| hollywoodusa | 7 | Hollywood district of Los Angeles, California, USA | Locations themes |
| holstering | 45 | Holstering | Activities themes |
| holyromanempire | 2 | Holy Roman Empire | Historical entities |
| home | 76 | Home | Other concepts |
| homebrew | 245 | Homebrew game | Video game concepts |
| homelessprotagonist | 9 | Homeless protagonist | Creatures themes |
| homeworld-series | 12 | Homeworld | Video game series |
| homingboulders | 53 | Homing boulders | Video game concepts |
| homingmissiles | 43 | Homing Missiles | Tools concepts |
| homm | 21 | Heroes of Might and Magic | Video game series |
| homosexualprotagonist | 9 | Homosexual protagonist | Creatures themes |
| homosexuals | 255 | Homosexuals | Creatures themes |
| honda | 11 | Honda | Vehicles themes |
| honeywell6000 | 17 | Honeywell 6000 computer platform | Hardware themes |
| hongkong | 35 | Hong Kong | Locations themes |
| honorablefoes | 5 | Honorable foes | Other themes |
| hooheyhow | 1 | Hoo Hey How | Traditional themes |
| hopandbop | 162 | Hop and bop | Game genre concepts |
| hopscotch | 1 | Hopscotch | Activities themes |
| hordegame | 14 | Horde game | Game genre themes |
| horizontalbars | 21 | Horizontal bars | Other entities |
| horizontalscreen | 1662 | Horizontal screen | Hardware themes |
| horror | 42 | Horror | Fiction genre themes |
| horsegame | 75 | Horse game | Other themes |
| horseracing | 281 | Horse racing | Sport themes |
| horses | 284 | Equines | Creatures entities |
| horseshoesgame | 2 | Horseshoes | Sport themes |
| hoshinengi | 3 | Hoshin Engi | Cartoon series |
| hospital | 83 | Hospital | Locations themes |
| host-dataimport | 11 | Data import from host | Video game concepts |
| host-dedicated | 20 | Dedicated local host | Software concepts |
| host-migrating | 15 | Host migrating | Software concepts |
| host-nonauthoritative | 1 | Nonauthoritative host | Software concepts |
| hostageport | 10 | Hostage Port | Video game concepts |
| hostileflora | 31 | Hostile flora | Creatures themes |
| hostilewildlife | 15 | Hostile wildlife | Video game concepts |
| hosting | 1 | Hosting | Software themes |
| hotairballoons | 27 | Hot air balloons | Creatures themes |
| hotel | 63 | Hotel | Locations themes |
| hotelgiant-series | 3 | Hotel Giant | Video game series |
| hotutopdog | 3 | Award: Home of the Underdogs Top Dog | Video game entities |
| hotwheels | 32 | Hot Wheels | Other series |
| hourglassfigures | 1 | Hourglass figures | Other themes |
| house | 57 | House | Locations themes |
| houseofthedead | 22 | The House of the Dead | Video game series |
| hoverbike | 29 | Hoverbike | Vehicles themes |
| hoverboard | 39 | Hoverboard | Vehicles entities |
| hovercar | 13 | Hovercar | Vehicles themes |
| hoverflight | 18 | Hover flight | Activities themes |
| hovertank | 22 | Hovertank | Vehicles themes |
| hovervehicle | 153 | Hover vehicle | Vehicles themes |
| hovervehicles | 25 | Hover vehicles | Vehicles themes |
| hp-19c | 3 | Hewlett-Packard HP-19C | Hardware entities |
| hp-25 | 14 | Hewlett-Packard HP-25 Programmable calculator | Hardware entities |
| hp-29c | 3 | Hewlett-Packard HP-29C | Hardware entities |
| hp-41c | 2 | Hewlett-Packard 41C | Hardware entities |
| hp-48gx | 1 | HP-48GX enhanced | Hardware themes |
| hp-50g | 1 | Hewlett-Packard HP-50g Graphic Calculator | Hardware entities |
| hp-55 | 2 | Hewlett-Packard HP-55 Programmable calculator | Hardware series |
| hp-65 | 18 | Hewlett-Packard HP-65 | Hardware entities |
| hp-67 | 52 | Hewlett-Packard HP-67 | Hardware entities |
| hp-97 | 48 | Hewlett-Packard HP-97 | Hardware entities |
| hp-ux | 24 | HP-UX OS | Software themes |
| HP1000 | 21 | HP 1000 & 2000 platform series | Hardware themes |
| hp2000 | 9 | HP 2000 minicomputer platform | Hardware themes |
| HP2645 | 4 | HP 264x microcomputer series | Hardware themes |
| HP3000 | 17 | HP 3000/e3000 platform series | Hardware themes |
| hp9800 | 1 | HP 9800 series | Hardware entities |
| hpl1engine | 10 | HPL1 | Software entities |
| hpl2engine | 7 | HPL2 | Software entities |
| hpl3engine | 4 | HPL3 | Software entities |
| hplengine | 18 | HPL | Software series |
| hppa | 94 | HP/PA | Hardware themes |
| hrgiger | 10 | H. R. Giger | Culture series |
| hta-series | 3 | Hard Truck: Apocalypse | Video game series |
| htcvive | 10 | HTC Vive | Hardware entities |
| html5 | 30 | HTML5 | Software entities |
| htnl | 1 | Hardware Transform and Lighting | Hardware concepts |
| hud | 6 | Head-up display | Video game concepts |
| hud-dynamic | 70 | Dynamic HUD | Video game concepts |
| hud-explained | 45 | Explained HUD | Other themes |
| hudcustomization | 8 | HUD customization | Video game concepts |
| hudmalfunctioning | 14 | HUD malfunctioning | Other concepts |
| huevos | 1 | Huevos | Cartoon series |
| hugefeet | 2 | Huge feet | Cartoon themes |
| hugeforearms | 1 | Huge forearms | Culture themes |
| hugeheads | 29 | Huge heads | Cartoon themes |
| hugeweapons | 20 | Huge weapons | Cartoon concepts |
| hugo | 33 | Hugo - character | Video game series |
| hugo-series | 11 | Hugo - adventures | Video game series |
| hugoengine | 20 | Hugo Engine | Software entities |
| hulk | 32 | The Incredible Hulk | Culture series |
| humancannonball | 10 | Human cannonball | Other entities |
| humanexperiments | 82 | Human experiments | Other themes |
| humanfacedcreatures | 19 | Human-faced creatures | Creatures themes |
| humanism | 3 | Humanism | Other concepts |
| humanitarianism | 1 | Humanitarianism | Culture concepts |
| humanity | 14 | Humanity | Other themes |
| humanityswake | 29 | Humanity's wake | Other concepts |
| humanmenace | 10 | Human menace | Other themes |
| humanmonsters | 11 | Human monsters | Creatures themes |
| humanoidanimals | 142 | Humanoid animals | Creatures themes |
| humanoidprotagonist | 303 | Humanoid protagonist | Creatures entities |
| humanoids | 184 | Humanoids | Creatures themes |
| humanprotagonist | 165 | Human protagonist | Creatures entities |
| humanresources | 19 | Human resources | Other concepts |
| humans | 364 | Humans | Creatures entities |
| humansuperiority | 12 | Human superiority | Culture concepts |
| humanweapon | 8 | Human weapon | Creatures themes |
| humblebundle | 327 | Humble Bundle | Other entities |
| humblestore | 210 | Available on the Humble Store | Other entities |
| humblewidget | 282 | Available via Humble Widget | Other entities |
| humid | 29 | Humid | Locations themes |
| humidity | 3 | Humidity | Other concepts |
| humor | 6 | OBSOLETE: Humor | Other themes |
| humor-blue | 25 | Blue humor | Culture concepts |
| humor-crude | 3 | Crude humor | Culture concepts |
| humor-dark | 47 | Dark humor | Culture concepts |
| humor-shock | 1 | Shock humor | Culture concepts |
| humor-surreal | 1 | Surreal humor | Culture concepts |
| humor-toilet | 38 | Toilet humor | Culture concepts |
| hundredyearswar | 6 | Hundred Years' War | Historical themes |
| hungary | 4 | Hungary | Locations entities |
| hunger | 506 | Hunger | Other concepts |
| hunted | 33 | Hunted | Other themes |
| hunterxhunter | 12 | Hunter × Hunter | Cartoon series |
| hunting | 164 | Hunting | Activities themes |
| huntingunlimited-series | 8 | Hunting Unlimited | Video game series |
| hurd | 7 | HURD | Software themes |
| hurdles | 41 | Hurdles | Sport themes |
| hurdles-110m | 64 | 110-meter hurdles running | Sport themes |
| hurdles-400m | 11 | 400-meter hurdles running | Sport themes |
| hurvana-series | 2 | Hurvana | Video game series |
| hxdos | 1 | HX DOS Extender | Software entities |
| hybridage | 1 | Hybrid Age Game | Historical themes |
| hybridage-theme | 17 | Hybrid Age theme | Historical themes |
| hybriddisc | 2 | Hybrid disc | Hardware themes |
| hybridgame | 118 | Hybrid game | Game genre themes |
| hybridprotagonist | 39 | Hybrid protagonist | Creatures entities |
| hybrids | 12 | Hybrids | Creatures themes |
| hydlide | 22 | Hydlide | Video game series |
| hydrae | 56 | Hydrae | Creatures entities |
| hydrokinesis | 12 | Hydrokinesis | Other concepts |
| hydrologiccycle | 5 | Hydrologic cycle | Other themes |
| hygiene | 16 | Hygiene | Other concepts |
| hylocynate | 1 | Hylocynate card game | Traditional themes |
| hyperalimentation | 23 | Hyperalimentation | Video game concepts |
| hypercard | 29 | HyperCard | Software entities |
| hyperdimensionneptunia-series | 20 | Hyperdimension Neptunia | Video game series |
| hyperenemies | 6 | Hyper enemies | Creatures themes |
| hypermobilefoes | 25 | Hypermobile foes | Creatures themes |
| hypermuscles | 22 | Hypermuscles | Other concepts |
| hyperneogeo64-hw | 7 | Hyper Neo Geo 64 | Hardware entities |
| hyperstone-hw | 11 | Hyperstone System | Hardware entities |
| hyperthermia | 1 | Hyperthermia | Other concepts |
| hypocrites | 11 | Hypocrites | Creatures concepts |
| hypothermia | 24 | Hypothermia | Other themes |
