You can try the Dead Space remake for 90 minutes with a Steam free trial
It's long been possible to download demos of some games on Steam, particularly during periodic Steam Next Fests. It's also technically possible to buy a game, play it for under two hours, then refund it if it's not for you.
As of yesterday, you can experience a marriage of both these ideas on Steam via a time-limited 90 minute trial for EA's Dead Space remake.