Here is the full list of all 23 Wargroove achievements.
Collect 200 stars.
Unlock every item in the gallery.
Complete all puzzles.
Complete "The Enemy Within".
Complete "An Ancient Adversary".
Use every Groove once.
Complete all missions in Act 6.
Complete all missions in Act 5.
Complete an Arcade in hard difficulty.
Complete all missions in Act 4.
Complete a puzzle.
Complete all missions in Act 3.
Complete an arcade run.
Complete all missions in Act 2.
Play a downloaded map.
Create a custom map.
Win a skirmish game.
Win an online match in Quick Play.
Complete all missions in Act 1.
Use a Groove.
Complete the prologue.
Obtain an S-Rank on every campaign mission.
Complete all arcade runs.