Here is the full list of all 47 Deathtrap achievements.
Complete a Scenario.
Unlock the Tier 3 skills with any character.
Complete every map in the campaign.
Buy a Special Offer item in the Shop.
Earn at least 2 stars on any Campaign map.
Kill 100,000 monsters: every game mode counts!
Build 15 different traps on a single map.
Summon 1000 monster with summoning traps.
Build 1000 tower traps.
Build 1000 ground traps.
Download and complete 10 different user generated maps.
Use the teleports 100 times.
Find a Godlike item.
Sell 20 traps.
Craft 20 items.
Loot 1,000,0000 gold.
Reach level 100.
Complete a Tier 4 map without building a single trap as a Mercenary.
Complete a Tier 4 map without receiving any damage as a Sorceress.
Complete a Tier 4 map without directly damaging a single monster as a Marksman.
Reach level 10 with a Sorceress, Mercenary and Marksman.
Earn 3 stars in every Campaign map on Tier 4.
Complete a map with the maximum x2 speed (counts from the first wave start phase).
Complete a maximum difficulty Scenario without dying.
Complete a Scenario with the 3 red challenges.
Complete a Scenario with the 3 blue challenges.
Complete a Scenario with the 3 purple challenges.
Complete every map in Scenario mode.
Complete a Scenario on difficulty 10.
Complete a Scenario on difficulty 20.
Reach wave 20 in Endless without using any teleport.
Reach wave 20 in Endless building only tower traps.
Reach wave 20 in Endless building only ground traps.
Reach wave 30 in Endless.
Reach wave 20 on every map in Endless.
Reach wave 10 in Endless without dying.
Kill 100 bosses in Endless.
Earn a star in the co-op mode.
Host a party and complete a map.
Reach wave 30 in Endless in a party.
Form a party with 10 different players.
Complete a difficulty 20 scenario in a party.
Defeat 10 different players as the Attacker in Versus mode.
Defeat 10 different players as the Defender in Versus mode.
Defeat the attacker player with an intact base in Versus mode.
Win 20 matches in Versus mode.
Possess 200 monsters as the Attacker in Versus mode.