Here is the full list of all 27 Aurora Dusk: Steam Age achievements.
Equip gunblade
Meet Aelfyr
Meet Neomenia
Meet the Devourer
Equip power armour
Meet a protectress
Meet Roxanne
Meet a protector
Meet Shadowgate
Meet Marshwald
Reach level 257
Reach level 100
Kill 1000 zombis
Meet Xcillia
Save the city of Aurora
Equip a rifle
Meet Gwidion
Meet Kerringer
Meet Bear Claw
Control at least 50 units
Defeat a minotaur
Win a custom game
Meet Kalzehire
Win a skirmish game
Equip a "solaris diadem"
Activate 'auto' mode
Reach level 10