Nikus points out the
Air Temple DLC for Risen 2 is now available on Steam for $9.99 - here's the blurb:
Gargoyles have infested the world of Risen 2: Dark Waters. Explore the mysterious Air Temple to uncover the mystery that surrounds it as you embark on an extensive new quest. Explore and discover an additional island with new characters, quests and enemies with up to 8 hours of additional playtime.
More information.