https://www.gamespot.com/articles/free-pc-game-from-ea-available-right-now-and-its-a/1100-6456765/

Dead Space, the acclaimed 2008 sci-fi horror game from the now-defunct developer Visceral Games, is now completely free on PC. It is the newest "On the House" game from publisher Electronic Arts, and you can grab it right here from Origin.

As with the previous On the House titles, once you download Dead Space it is yours to keep forever. The only catch is that EA doesn't say when On the House titles cycle out, so if you're interested, you may want to grab the game right now instead of putting it off until later.