Tripods are alien machines that invaded Earth in an unknown year. Though they don't seem to move much, their arsenal is incredibly deadly, with the ability to disintegrate a person in one blast. They have been seen very few times in gmod, the first time being a mod where Jordan and Bethany had to fight their way along a coastline avoiding huge tripods, and the other being the Fan Scripted Challenge.
The tripods were involved in The Billion Year War, being the largest threat to humanity and nearly wiping them to extinction after Papa Acachalla provoked them into invading the Earth by killing a small one on the beach. They are often seen roaming the ruins of old society, constantly on the look out for any surviving factions of the war.
A Higgilydiggilyhögan clone claims that the destroyed tripod corpses are the aliens remains. This is later proven to be inaccurate as the PIE team manage to find a broken Tripod and successfully reverse-engineer it into their own fighting machine.
Although bullets can not pierce the armor of the tripod it is possible to knock it over as seen in the second episode of the Fan Scripted Challenge.
Tripods are vulnerable to nuclear weapons.
- Gmod SCARY WAR OF THE WORLDS Tripod Mod! (Garry's Mod)