has the new game for Amazon Prime members.
You will need the twitch launcher [twitchapp.net]
installed to access all of your games.
The game will be free from December 15th-24th.
You need to claim the offer.
Install the Twitch Launcher.
Then download the game from the launcher client.
The game is currently $24.99 on steam [steampowered.com]
and has "Very Positive" reviews.
From the steam description:
"SUPERHOT is the first person shooter where time moves only when you move. No regenerating health bars. No conveniently placed ammo drops. It's just you, outnumbered and outgunned, grabbing the weapons of fallen enemies to shoot, slice, and maneuver through a hurricane of slow-motion bullets."