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