Here is the full list of all 24 Legend of Keepers: Career of a Dungeon Manager achievements.
Reach 156 weeks in Endless Mode.
Recruit 5 rare monsters with the Headhunter.
Kill 3 heroes with a single attack.
Kill 3 heroes simultaneously with a trap.
Make 3 heroes flee.
Unlock 45 Artefacts at the Archivist.
Complete all missions with the Engineer.
Complete all missions with the Enchantress.
Summon 10 monsters in front of the Ninth Door.
Complete level 20 of Ascension Mode with any Master.
Unlock 35 Artefacts at the Archivist.
Complete level 15 of Ascension Mode with any Master.
Apply 20 stacks of "Bleeding" to a single hero.
Complete level 10 of Ascension Mode with any Master.
Complete level 5 of Ascension Mode with any Master.
Complete all missions with the Slaveholder.
Unlock 25 Artefacts at the Archivist.
Finish a game without seeing the Therapist.
Use only the same type of monsters during a dungeon.
Upgrade a monster to max level.
Gather 5 Artefacts during a game.
Kill a Champion.
Steal 10 Artefacts from the Collector.
Reach 260 weeks in Endless Mode.