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1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteSix codes are repeatedly listed for Roblox’s Nuclear Bunker Survival Simulator: nuclear, update1, bunker, hazard, kayo and release. Their current status is disputed: TheTechBasket reported no working codes on September 29, 2026, while MrGuider listed the same six as working after a check on that date. Treat them as reported codes, not confirmed active rewards, and rely on the game’s response when you try them.
Reported Nuclear Bunker Survival Simulator codes
Enter each code exactly as shown in the game’s code interface. The listed rewards below are historical claims from Twinfinite’s November 2024 guide; they are not verified current payouts.
| Code | Reward reported by Twinfinite in November 2024 | Current status |
|---|---|---|
nuclear |
3x power potion | Unverified; repeatedly listed by guides |
update1 |
2x gold potion | Unverified; repeatedly listed by guides |
bunker |
5x luck potion | Unverified; repeatedly listed by guides |
hazard |
2x luck potion | Unverified; repeatedly listed by guides |
kayo |
2x power potion | Unverified; repeatedly listed by guides |
release |
2x cash potion | Unverified; repeatedly listed by guides |
Game.Guide also listed these six codes as active on August 7, 2026. Because guide pages disagree, none should be treated as confirmed usable until the experience accepts it. See TheTechBasket’s September 29, 2026 status report, MrGuider’s code list, and Game.Guide’s list.
How to redeem codes
Codes are redeemed inside the Roblox experience. Menu labels and verification steps may vary as the interface changes.
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- Launch Nuclear Bunker Survival Simulator in Roblox.
- Open the in-game Codes button or menu. Some guides describe a Gift menu instead.
- Enter or paste one code into the code field, then select the submit or redeem control.
- Read the game’s response to see whether the code was accepted or rejected.
An older Twinfinite guide says players may need to follow @kayoodev on X, enter a username and verify before redeeming. Other guides describe a simpler code-entry flow. Follow the prompt shown in your current game build rather than assuming the older social verification steps still apply. See Twinfinite’s redemption instructions and TheTechBasket’s instructions.
What to do if a code does not work
- Check the spelling: compare every character with the list above and remove any accidental spaces.
- Use the in-game message as the deciding evidence: a code appearing on a third-party list does not prove it is still redeemable.
- Follow any current eligibility prompt: older instructions mention account or social verification, but the current requirement is not established independently.
Expiry, update timing or account requirements could explain a rejection, but available guides do not confirm a specific cause for a particular failed attempt. The code interface’s response is the most useful indication available to the player.
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About the experience
Secondary guides identify KAYO Group as the developer and report an October 21, 2024 release date. Destructoid characterizes the Roblox experience as a clicker in which players gather oxygen and try to escape bunkers. These details come from guide coverage rather than a primary developer announcement. See Destructoid’s game and code guide and Game.Guide’s listing.
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- The easiest way to add Robux (Roblox’s digital currency) to your account. Use Robux to deck out your avatar and unlock additional perks in your favorite Roblox experiences.
- This is a digital gift card that can only be redeemed for Robux at Roblox.com/redeem. It cannot be redeemed in the Roblox mobile app or any video game console. Please allow up to 5 minutes for your balance to be updated after redeeming.
- Roblox Gift Cards can be redeemed worldwide, perfect for gifting to Roblox fans anywhere in the world.
- From now on, when you redeem a Roblox Gift Card, you get up to 25% more Robux. Perfect for gaming, creating, and exploring- more Robux means more possibilities!
- Every Roblox Gift Card grants a free virtual item upon redemption.
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- The easiest way to add Robux (Roblox’s digital currency) to your account. Use Robux to deck out your avatar and unlock additional perks in your favorite Roblox experiences.
- This is a digital gift card that can only be redeemed for Robux at Roblox.com/redeem. It cannot be redeemed in the Roblox mobile app or any video game console. Please allow up to 5 minutes for your balance to be updated after redeeming.
- Roblox Gift Cards can be redeemed worldwide, perfect for gifting to Roblox fans anywhere in the world.
- From now on, when you redeem a Roblox Gift Card, you get up to 25% more Robux. Perfect for gaming, creating, and exploring- more Robux means more possibilities!
- Every Roblox Gift Card grants a free virtual item upon redemption.
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- This is a digital gift card that can only be redeemed for Robux at Roblox.com/redeem. It cannot be redeemed in the Roblox mobile app or any video game console. Please allow up to 5 minutes for your balance to be updated after redeeming.
- Roblox Gift Cards can be redeemed worldwide, perfect for gifting to Roblox fans anywhere in the world.
- From now on, when you redeem a Roblox Gift Card, you get up to 25% more Robux. Perfect for gaming, creating, and exploring- more Robux means more possibilities!
- Every Roblox Gift Card grants a free virtual item upon redemption.
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