Endless replayability, no two saves are ever the same. I've had saves where almost every colonist dies besides one, and I've somehow made it out ok. I've had saves where everything is going great until my entire colony dies. It is insanely fun to watch all of these things unfold. The base game is incredibly fun but mods really do spruce up some aspects of the game I found tedious or annoying. HIGHLY RECOMMEND!!!! 10/10!!!!!