The Anti-Gadoid Gun can be obtained through the Quest "Legless Spider", where upon completion of the quest, the player will be rewarded with the gun.
- The Anti-Gadoid Gun is a troll by the developers. It cannot fire any type of ammunition or do any damage to enemies.
- When fired, it creates loud noises which alert special infected to your location.
- The Anti-Gadoid Gun's thumbnail suggests that it uses pistol ammunition, although this number will always remain at zero, despite how much pistol ammunition is obtained by the player.
- The Anti-Gadoid Gun can be sold for 300 dollars.
- The Anti-Gadoid Gun can be successfully given to Dawud in the quest Gunslinger.
- Another use some people don't think about is to draw surrounding Virals away from weaker Biters thus eliminating some of the threat.