Game System
- Gekido: Bot Battles5
- General Glen's Weapons of War5
- Genotype5
- Giant Robots of Doom5
- Gigantic5
- Gnoming A Round5
- Goblins Drool, Fairies Rule! 5
- Gothic Shadows5
- Grimm5
- HARNMASTER by Columbia Games5
- Harpoon5
- Heave Ho!5
- Hero System (Star Hero)5
- Hero System (variant)5
- Heroes of Metro City5
- Heroic Dark5
- HiBRID/Ite' Gaming Engine5
- Hireling the Ascent5
- Hollows5
- Home Brew5