To survive this swarm of zombies you need some Undead Mayhem codes, and we’re more than happy to give them to you. In this Roblox experience you need to work as part of a team, doing all you can to keep the walking dead at bay. The more waves you survive, the more currency you earn, which you can then use to upgrade your gear.
If zombie games aren’t your thing but freebies are, check out our Anime Last Stand codes, Lethal Tower Defense codes, Silly Tower Defense codes, Bikelife Miami 2 codes, Anime Rangers codes, and Grimoires Era codes guides. We also have a Roblox game codes page if you want to see our other code articles.
Undead Mayhem codes
Active codes:
- update2 – double XP for ten minutes
- 9000LIKES – 250 zombux
- luckytuesday – double XP for 30 minutes
- timetofarm – double XP for 30 minutes
- casualxpbuff – double XP for 20 minutes
- FEB19XPBUFF – double XP for 15 minutes
- HAPPYUPDATE1 – double XP for ten minutes
- 2000LIKES – 250 zombux
Expired codes:
- SUNDAYGRIND
What are Undead Mayhem codes?
Undead Mayhem codes are a great way to get some extra zombux and XP, both of which can go a long way in helping you get better gear to beat the zombies. Undead Dev, the games’ developer, tends to release new codes in celebration of events and milestones, so make sure you give the game a like if you want to speed up the next freebie.
How do I redeem Undead Mayhem codes?
To redeem Undead Mayhem codes, you need to:
- Launch Roblox
- Fire up Undead Mayhem
- Hit the weapons button
- Enter your code in the ‘reward codes’ section
- Hit redeem
- Enjoy your freebie!
With that, you know all of the new Undead Mayhem codes. If you want some less blocky zombie fun, our lists of the best Resident Evil games, The Walking Dead games, and horror games have some great suggestions.