Build a Dungeon is a Roblox defense game where you build your own dungeon: you collect monsters, place traps and stop waves of heroes trying to reach your crystal. Codes give you Coins, Dark Souls and potions that boost your earnings (Booster Potions). Below you'll find the six codes that work as of October 17, 2026, along with the expired one.
Active Build a Dungeon codes
| Code | Reward |
|---|---|
| GUILDS | Coins and Dark Souls (new; amount not announced) |
| 2KCCU! | 25,000 Coins and 3,000 Dark Souls |
| LABYRINTH | 3 Soul Booster Potions, 10,000 Coins and 1,000 Dark Souls |
| DRAGONALTAR | 3 Coin Booster Potions, 1,000 Coins and 1,000 Dark Souls |
| DIVINE | 1 Coin Booster Potion and 2,500 Coins |
| 100KVISITS! | 1 Soul Booster Potion and 100 Dark Souls |
2KCCU! gives the most Coins, so start with that one. The exclamation mark in 2KCCU! and 100KVISITS! is part of the code: if you leave it out, the code won't work. Enter the codes in capital letters exactly as they appear in the table; the easiest way is to copy and paste them.
How to redeem codes
- Launch Build a Dungeon on Roblox.
- Click the Settings button in the top-left corner of the screen.
- Type or paste the code into the "Enter a code" box.
- Press the Redeem button to claim your rewards.
Each code can only be used once per Roblox account.
Expired codes
The following code no longer works:
- DUNGEON
What are the code rewards good for?
Coins and Dark Souls are the two main resources you spend to strengthen your dungeon: with more monsters and traps, you build up your defense against the waves of heroes. As their names suggest, Booster Potions temporarily increase your Coins (Coin Booster) or Dark Souls (Soul Booster) earnings. If you use the potions at the start of a long play session, you'll get more out of them.
Where can you follow new codes?
New codes, developer announcements and update notes are shared on the game's official Discord server; the game doesn't have an official wiki or Trello page yet. If you bookmark this page, you can find new codes here too; we update the list regularly.