There are some games that are so interwoven with the fabric of Steam that it's hard to imagine the platform without them. Garry's Mod is one, an anything-goes sandbox that's formed the backbone of the ...

Garry's Mod is now the best-selling PC exclusive of all-time with over 20 million copies sold. With so much influence across generations during its 18 year history, it's little surprise that Garry's ...