Full list of all 34 Warhammer 40,000: Mechanicus achievements.
The base game contains 24 achievements, and there are 2 DLC packs containing 10 achievements.
Reach a six Tech-Priest cohort
Have a Tech-Priest unlock two full Discipline trees
Defeat Szaregon
Defeat Szaregon before the final countdown
Defeat Neftusk
Defeat Ekropis
Defeat Mhelob
Unlock Kastelan Robot
Defeat Ubjao
Have a Tech-Priest unlock a full Discipline tree
Reach 50% in the awakening gauge
Reach a four Tech-Priest cohort
Unlock Skitarii Ranger
Defeat Agrolekh
Unlock Skitarii Vanguard Alpha
Unlock Skitarii Vanguard
Unlock Skitarii Ranger Alpha
Complete a mission without using any Canticles
Survive the first mission
Unlock Kataphron Breacher
Side with Videx
Side with Scaevola
Find and unlock a hidden moment
Complete the game in hard mode
Complete the game in Very Hard mode
Complete the game with the setting "Melee Only" selected at the start of a game
Complete the game with the setting "AoE weapon" disabled at the start of a game
Complete the game after starting with 0 Blackstone
Complete the game with the setting "Canticle number" equals 0 at the start of a game
Complete the game with the "Ironman" mode activated
Complete the game with the "Permadeath" mode activated
Complete the game with the Heretek content activated