The Temple Crypt Expansion Pack Add-on for Xotic has 4 achievements.
Destroy multiple Orb Brains with 1 shot of the Slayer (requires Temple Crypt DLC)
Finish a combat level in Essence Attack mode without firing a single shot (requires Temple Crypt DLC)
Finish a combat level without destroying a single Scab plant (requires Temple Crypt DLC)
Finish a Temple Crypt level in Essence Attack mode