10 heads are better than 1
Kill 10 zombies in a row with headshots.
6/10/2023
5:17:14 AM
Ultra Rare 1.2%
Can't touch this
Use a hammer to kill a series of 15 zombies without taking damage.
6/9/2023
4:50:18 AM
Ultra Rare 2.7%
People Person
Play with 10 different co-op partners for at least 15 minutes each.
6/2/2023
4:25:25 PM
Ultra Rare 1.5%
Originality
Play in a co-op team of 4 different playable characters.
5/31/2023
7:14:13 PM
Ultra Rare 4.1%
Morituri te salutant
Survive 30 consecutive waves with at least one co-op player.
5/31/2023
5:53:30 PM
Ultra Rare 1.1%
Extreme Firefighting
Set 5 enemies on fire and then kill them with explosives.
5/25/2023
5:42:19 AM
Ultra Rare 4.7%