GTFO Free Weekend

A free weekend is now underway on Steam for GTFO, the co-op first-person shooter from 10 Chambers. This is the chance to experience what's in the new Rundown 8.0 Duality update that's now live, and here's an Official Trailer showing what it adds to the horror-themed game. If the sample draws you in as intended, it's on sale for 40% off. This post is here to help new players get started, outlining a complete survival guide. Read on for the official description:
GTFO is a hardcore cooperative horror shooter that throws you from gripping suspense to explosive action in a heartbeat. Stealth, strategy, and teamwork are necessary to survive in your deadly, underground prison. Work together or die together.