Merge Tower Defense combines classic tower defense waves with a merge-tycoon economy, where you fuse duplicate units to boost their stats and unlock stronger weapons. Codes hand out free gems, Diamonds, and other rewards you can spend in the shop instead of grinding through early waves for currency.
Working Merge Tower Defense codes
Enter these codes exactly as written, since Merge Tower Defense treats them as case-sensitive.
CHESTS— Free rewards NEWDAMAGERAID— Free rewards NEWVOIDAWAKENING— 1000 gemsSAFEGUARDPROTOCOL— 500 gemsTY20M— 1000 DiamondsMTD1K— 1000 DiamondsBiotrix— 500 DiamondsHellGuard— 500 DiamondsGenesis— 1000 DiamondsCorruptor— 500 DiamondsAegis— 500 DiamondsHappy Halloween— 1000 DiamondsUPD6.0— 1000 DiamondsWelcome— 500 DiamondsDiscordMembers— 1000 Diamondsdude— Diamondsarcane— Diamonds
None of these codes have expired yet, so every one listed above should still work when you try it.
How to redeem codes in Merge Tower Defense
Redeeming a code takes a few seconds once you know where the entry box sits.
What the codes actually reward
Most codes drop either gems or Diamonds, the two currencies used to buy and upgrade weapons in the shop. A couple hand out unspecified free rewards instead of a fixed amount.
| Reward type | What it’s used for |
|---|---|
| Diamonds | Buying and upgrading stronger weapons in the shop |
| Gems | A separate premium currency for shop purchases |
| Free rewards | Unlisted bonus items or currency, granted directly to your inventory |
Where to find new Merge Tower Defense codes
New codes usually appear on the developer’s official Merge Tower Defense Discord server, particularly in the announcement channel, around game updates and events. The Merge Empire community page on Roblox is another place the developer posts updates.
Bookmark this page and check back regularly, since codes get added and swapped out as new events roll around.
