Here is the full list of all 35 Dungeon Warfare achievements.
Kill a unit by pushing it off to a pithole
Clear a stage with only one life remaining
Call all waves early on a stage
Kill a unit by placing a Barricade on it
Kill 20 units with a single bomb minecart explosion
Clear a stage with 8 runes activated
Reach 200 kill streak
Kill 50 units with a single boulder
Kill 10 units with a single bomb
Pull a unit with four harpoons simultaneously
Kill a chilled unit
Summon 50 demons
Build 5 lightning traps
Reach trap mastery level 20
Earn 1000 gold with a single soul harvester
Reach player level 30
Upgrade a trap to tier 3
Reach wave 30 in endless mode
Repair a 1 hp door
Clear stage with 30 or more frogs in the dungeon
Pull 20 units with a single Blackhole Trap simultaneously
Kill 50 units with Barricade in a single game
Clear any stage with all runes on
Beat a custom map
Clear stage 'First Blood' without spending any gold
Clear all stages with six or more runes on
Clear stage 'Gold Rush' without using the Repair Kit
Kill the Mysterious Challenger
Kill the Dr.Balanced