However, you are limited to the props available in the Source Engine games you own, so this should be considered a minimum requirement. GMod requires that you own at least one Source Engine game, such as Half-Life 2, in order to play it.
Garry's Mod, also known as GMod, is a physics-based sandbox game using Valve's Source Engine, which was developed by Garry Newman as a mod to Half-Life 2. Overview The Cloverfield Parasite can be downloaded and fought against.
