When 10 Chambers launched GTFO into early access in 2019, the world – and the video game industry – was a very different place. The studio, then formed of only nine staff, didn’t know if there was an audience for a super hardcore co-op FPS. So it launched the game as a very simple proposition: it was premium, you buy it once, and you get all the content. No MTX, no DLC, no nonsense. Quelle surprise, it gathered a large, loyal following, sold over 2.5 million copies (only on PC), and made all its development costs back in under 9 days.