Here is the full list of all 14 Karen Simulator: Wagecuck vs Karen achievements.
Kill one Karen
Headshot anyone
Reach Wave 5
Reach Wave 10
Reach Wave 20
Kill 100 Karens
Kill 250 Karens
Kill 500 karens
Defeat Mam
Get murdered by Karens
Kill a violent feminist
Kill a Karen wearing a mask
Defeat a big karen
Defeat giga karen