Here is the full list of all 27 TerraForge achievements.
Discover your first relic.
Craft 10 items.
Earn 100 coins.
Craft a masterwork quality item.
Discover silver.
Discover iron.
Buy your first paid licence.
Earn 1000 coins.
Earn 10,000 coins.
Earn 50,000 coins.
Discover gold
Discover diamond
Reach the depth of Abyss.
Reach a depth of 3000.
Buy your first upgrade.
Purchase 5 upgrades.
Purchase 20 upgrades.
Purchase all upgrades.
Complete your first mission.
Complete 10 missions.
Equip 3 relic at once.
Discover all relics.
Craft 50 items.
Craft 200 items.
Obtain a legendary blueprint shard.
Discover Celestium.
Discover Adamantite.