Here is the full list of all 22 Demon Hunter 4: Riddles of Light achievements.
Finish all Minigames without skipping them.
Save the world.
Find all parts of Horus' soul.
Collect all collectible Stars and Diamonds.
Find the gate to the Dreamatorium.
Answer all of Sphinx's questions correctly.
Defeat the Undead King.
Travel with Bennu to the Rose of War to find a way to the Dreamatorium.
Escape Seth's dungeon and reach the surface.
Pass all the traps on the bridge and live to tell the tale!
Complete a Hidden Object Puzzle without a mistake.
Use the Gauntlet to talk to the mummy for the first time.
Finish 3 Hidden Object Puzzles without a Hint.
Find the upgrade for your Gauntlet.
Complete 5 Minigames without skipping them.
Complete a Hidden Object Puzzle without a Hint.
Complete a Hidden Object Puzzle in less than a minute.
Find 3 Hidden Objects within 3 seconds.
Find and use the Gauntlet for the first time.
Complete a Minigame in less than a minute.
Complete your first interactive Hidden Object Puzzle as an archaeologist.
Find one Collectible.