Mech Assemble: Zombie Swarm Codes December 2025

In Mech Assemble: Zombie Swarm, your customized mechs are humanity’s ultimate weapon against relentless zombie hordes. To ensure your victory, gift codes provide essential resources like Diamonds, Gold, Mech Shards, and Part Chest Keys—everything needed to upgrade your machines into unstoppable forces.

Whether you prefer to dominate in PvE stages or compete in PvP, these codes give you the strategic edge to conquer any battleground. This page is your central hub for all currently active codes, offering free boosts to power up your arsenal.

All Active Mech Assemble: Zombie Swarm Codes

CodeRewards
HAPPYNY2026Free Rewards
MERRYXMAS25Free Rewards
MECH77773 Part Chest Keys
MECH99997,777 Gold, 5 Mech Shards, 177 Diamonds
MGPLAY777200 Diamonds
MECH20252,777 Gold, 1 Part Chest Key, 77 Diamonds
THX30000Free Rewards
MGDEC777Free Rewards
MGDEC35000Free Rewards

How to Redeem Mech Assemble: Zombie Swarm Codes

Claiming your free rewards is a straightforward process. Follow the steps below:

Prerequisite: Ensure you have completed the game’s initial tutorial, as the redemption feature may not be available beforehand.

Redemption Steps:

  1. Launch Mech Assemble: Zombie Swarm on your device.
  2. Tap your profile picture/avatar in the top-left corner of the screen.
  3. Select the “Gift Code” button from the menu.
  4. Carefully enter or paste your code into the provided text box. (Codes are often case-sensitive.)
  5. Tap the “Redeem” button to confirm.
  6. Collect your rewards from your in-game Mailbox, typically located on the right side of the screen.

Troubleshooting Tip: If a code doesn’t work, double-check for typos, confirm it hasn’t expired, and try copying/pasting it directly to ensure accuracy.

How to Find More Mech Assemble: Zombie Swarm Codes

The most reliable way to get new codes is right here—we constantly update this guide with the latest active rewards as soon as they are released.

For additional sources, you can also monitor the game’s official communities:

These platforms sometimes share exclusive codes and announcements directly from the developers.

Why are My Mech Assemble: Zombie Swarm Codes not Working?

If a code isn’t working, please follow these steps:

  1. Check for Accuracy: Ensure the code is entered exactly as shown. Codes are often case-sensitive, so using copy-and-paste is recommended.
  2. Verify Expiration: Codes are active for a limited time. If entered correctly but not working, it has likely expired.
  3. Note for New Players: Some features, including code redemption, may require completing the initial tutorial first.

If you confirm a code from our list has expired, please let us know in the comments so we can promptly update the guide for everyone.

Conclusion

Using these active codes, you’ll be ready to upgrade your mechs and dominate the zombie onslaught. For the latest rewards, be sure to check back here regularly—we update this guide as soon as new codes are released.