Full list of all 11 Castle Pals achievements worth 1,000 gamerscore. It takes around 0.5-1 hour to unlock all of the achievements on Xbox One.
Finish Act 2 - Level 6.
Find the Red Gem.
Finish Act 1.
Get gold score on 4 levels.
Finish Act 1 - Level 6.
Get gold score on 2 levels.
Get gold score on any level.
Find the Blue Gem.
Complete a level with Owen.
Die on any level.
Complete a level with Kylee.