has the new game for Amazon Prime members.
You will need thetwitch launcher [twitch.tv]
installed to access all of your games.
The game will be free from December 28th - January 3rd.
You need to claim the offer.
Install the Twitch Launcher.
Then download the game from the launcher client.
The game is currently $10.19 on steam [steampowered.com]
and has "Very Positive" reviews.
From the steam description:
"Cursed Castilla (Maldita Castilla EX) is an arcade action platformer full of creatures from medieval myths from Spain and the rest of Europe, as well as from chivalric romances. This game is an extended version of the renowned classic arcade Maldita Castilla, originally created by the indie Locomalito."