Here is the full list of all 40 Tower of Chaos achievements.
Win 40 stationary battles during one expedition to the tower.
Equip units with 18 items at same time during one expedition to the tower.
Capture 8 valuts during one expedition to the tower.
Buy 16 wares from shops during one expedition in tower.
Upgrade 18 buildings to perfect.
Unlock 24 blessings.
Reach level 5 of champions shop.
Enter the second floor of the tower.
Enter the third floor of tower.
Octopus has jumped on your head 44 times.
You have used 100 potions.
You've merged 50 items.
You've discovered 75 hidden loot spots.
Have 7 units with 3 stars at the same time.
Finish a tower floor without getting ambushed.
Finish a tower floor without using potions.
Win a boss fight without using boss items.
Use 6 potions during one combat.
Develop 15 potion recipes
Win 5 battles in a row with only 1 unit.
Win a boss fight using only one-star units.
Conquer the tower without using shops.
Get a duo blessings during 1 tower expedition.
Have 9 different champions with the same trait at the same time.
Conquer the tower with a maximum of level 6 of the champion store.
Get the maximum level of 9 talents.
Conquer the tower of chaos.
Conquer the tower of chaos 10 times.
Conquer the tower having all challenges from the Gate of Challenges active at least at level 1.
Learn full Omus's backstory.
Learn full Varus's backstory.
Conquer the tower of chaos 5 times.
Learn full Lia's backstory.
Learn full Arana's backstory.
Learn full Sorana's backstory.
Learn full Uzim's backstory.
Learn full Laxox's backstory.
Create all possible decorations for the keepers' quarters.
Fish all floors without reaching level 5 chaos.
Have 11 champions on the board at the same time.