Here is the full list of all 38 Dead Ground achievements.
Buy 500 items
Kill 100,000 enemies
Unlock "Orb Of Luck" Artifact
Unlock every character and artifact
Collect 100,000 scrap in total
Sell 500 items
Fully upgrade the cryoblaster tower
Fully upgrade the sniper tower
Kill every unique boss at least once
Kill 50,000 enemies
Fully upgrade the commando tower
Kill 100 boses
Fully upgrade the hell bringer tower
Beat the game with the death artifact on
Fully upgrade the H.S.M. tower
Collect 10,000 water in total
Beat the final boss
Unlock "The Death" Artifact
Unlock "The Desire" Artifact
Unlock Gogo
Survive day 10
Kill 50 bosses
Fully upgrade the mini nuke tower
Unlock "The Secret" Artifact
Survive day 8
Kill 10,000 enemies
Unlock "Mask Of Terror" Artifact
Unlock "Tormented Soul" Artifact
Fully upgrade the gatling tower
Fully upgrade the mammoth tower
Kill 10 bosses
Unlock Quadrat
Unlock King
Unlock "Sword Of Fear" Artifact
Survive day 6
Survive day 4
Survive day 2
Unlock "Shard Of Life" Artifact