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