An upcoming Steam game — which is to say, a Steam game not even out yet — is free to download right now, for the next 24 hours. How much the game will cost when it releases, we don’t know, but it won’t be free.

Valve is now explicitly disclosing that you don’t own the games you buy from its Steam online store. The company has added a note on the payment checkout screen stating that “a purchase of a digital product grants a license for the product on Steam,” as reported earlier by Engadget.

Survival games are a great way to test a player's strategies when it comes to long-term planning. Tack on a spectacular zero dollar price tag, and you've got a match made in heaven. Take a look at our picks for the best free survival games on Steam.