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.
Side with Videx
Defeat Szaregon before the final countdown
Unlock Kataphron Breacher
Reach a six Tech-Priest cohort
Unlock Skitarii Vanguard Alpha
Side with Scaevola
Defeat Szaregon
Defeat Neftusk
Unlock Kastelan Robot
Defeat Mhelob
Defeat Ubjao
Have a Tech-Priest unlock two full Discipline trees
Reach 50% in the awakening gauge
Reach a four Tech-Priest cohort
Defeat Agrolekh
Unlock Skitarii Ranger Alpha
Defeat Ekropis
Have a Tech-Priest unlock a full Discipline tree
Unlock Skitarii Vanguard
Unlock Skitarii Ranger
Survive the first mission
Complete a mission without using any Canticles
Find and unlock a hidden moment
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 "Permadeath" mode activated
Complete the game in hard mode
Complete the game in Very Hard mode
Complete the game with the "Ironman" mode activated
Complete the game with the Heretek content activated