| Abbreviation | Definition |
|---|---|
| GTARP | Grand Theft Auto Roleplay |
| GTAV | Grand Theft Auto Five |
| GTC | Game Tool Chest |
| GTD | Game Time Decision |
| GTG | Good To Go |
| GU | Gaming Universe |
| GUAL | Go Up A Level |
| GUMBO | Games Uniting Mind and BOdy |
| GUN | Gaming Unlimited Network |
| GUNDAM | General Purpose Utility Non-Discontinuity Augmentation Maneuvering Weapon System (Gundam SEED Anime) |
| GVG | Good Vibes Gaming |
| GVG | Grand Vision Gaming |
| GW | Games Workshop |
| GW | Garden Warfare |
| GW2 | Guild Wars 2 |
| GWAP | Games With A Purpose |
| GWAS | Game Was A Success |
| GWL | Gamer War League |
| GWL | Global Warfighter Leagues |
| GWYF | Golf With Your Friends |