The Mt. Adalmant Level Pack Add-on for Wreckateer has 5 achievements worth 100 gamerscore.
Get Gold on all Region 11 levels.
Surpass a Rival after achieving a Gold Medal on a Region 11 level.
Bank shot for a 150,000 point shot score in Region 11.
Destroy 5 Windmills in Region 11.
Get the Terrifying, Mulligan, and Do Over! Bonus Icons in a single shot in Region 11.