During Twitch's Amazon Game Studios' Unboxing event, the third game we saw unveiled was Crucible. Crucible is a battle to the last survivor on a hostile alien world. Players choose and customize heroes, making alliances and betraying allies on their path to victory. An additional player heightens the drama by triggering events, live-streaming the battles, and interacting with viewers.
You can read more about all three games at the official site.