http://www.pcgamer.com/steamworld-heist-is-the-next-free-game-for-twitch-and-amazon-prime-subscribers/

The SteamWorld series is an eclectic—and excellent—mix of titles, as Austin described in his interview with developer Image & Form earlier this month. Twitch Prime subscribers can now own a slice of it for free by picking up SteamWorld Heist, a turn-based strategy game that's a bit like a 2D steampunk XCOM.

It's free until December 27—all you have to do is log into your account and head to the game's Twitch page to claim the deal. And remember, if you're an Amazon Prime subscriber then you get Twitch Prime for free. Head to this page and link your accounts together for in-game loot, ad-free viewing and free games like this one.