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