Merge a Nuke! is a Roblox Simulation and Tycoon game about combining bombs into stronger nukes, building a cash-producing arsenal, raiding other bases, and locking your own base before another player strikes back. The official Roblox description says nukes keep earning Cash while the player is offline, so code rewards are only a small boost inside a wider merge-and-defense loop. The current sources share one text but split on two other rows that promise a different reward shape. This page keeps the shared answer copyable, leaves the direct conflicts under Checking, and does not turn source listings into a claim that ObbyList redeemed anything in the Roblox client.
Working Codes 1
Last checked July 13, 2026
CodeRewardCheckedAction
BOOM5k CashJuly 13, 2026
Checking Codes 2
Sources disagree on these rows, so ObbyList does not list them as working yet.
CodeRewardCheckedAction
ATOMIC10k Cash and 20 Nukes; source status conflictsJuly 13, 2026Checking
UPDATE210k Cash / 10 Nukes; source status conflictsJuly 13, 2026Checking
Expired Codes 0
CodeRewardCheckedAction
No expired codes tracked yetObbyList has not tracked any expired codes for this page yet.
How to Redeem
1
Open Merge a Nuke! on Roblox and join the game.
2
Click the Store button in the left-side menu.
3
Scroll to the bottom of the Store window to find the code redemption box.
4
Enter the code exactly as shown because the current sources say codes are case sensitive.
5
Click Redeem and read the result before trying another code.
ObbyList checked these sources but has not tested the codes in game.
Merge a Nuke! Codes FAQ
Why might BOOM fail even though it is listed as Working?
BOOM is in Working because the official Roblox description and all four saved code sources list it, but ObbyList has not redeemed it in the current game client. Copy BOOM in uppercase, remove any extra spaces, open Store, scroll to the code box, and try it once. A rejection can mean the code changed after the July 13 source check, the text was entered differently, or the Roblox server has not accepted it for that account. Check the date and row status again before assuming every source is still current.
Should I try ATOMIC or UPDATE2 in Merge a Nuke?
Treat ATOMIC and UPDATE2 as uncertain, not as confirmed Working codes. Beebom and PCGamesN list both as active, while GamesRadar+ and Dexerto put them in their expired lists. The sources also describe their rewards differently, so ObbyList keeps both rows under Checking and does not provide a Copy button. You can test them yourself if you understand that conflict, but this page cannot promise a reward or successful redemption. If either one succeeds, that only records what happened on your account at that moment; it does not settle the public source conflict for every player. GamesRadar+ also warns that instant nuke rewards may need enough open plot capacity.
Are Merge a Nuke codes case sensitive?
Beebom says Merge a Nuke codes are case sensitive, so use the exact uppercase text shown in the table. Copying BOOM is safer than typing it from memory. If you enter a code manually, check for a leading or trailing space and make sure the letters have not been changed to lowercase. Enter one code at a time and read the game response before trying another. This advice helps prevent typing mistakes, but it cannot make an expired or disputed code work.
Does BOOM increase offline Cash earnings?
No current source says BOOM increases the rate of offline Cash earnings. The official Roblox description says placed nukes can keep earning Cash while you are offline, while the four saved code sources describe BOOM as a one-time 5,000 Cash reward. Those are two separate parts of the game. The official description does not publish an offline earnings rate or claim that a code changes it, so ObbyList does not label BOOM as a multiplier, permanent boost, or automatic upgrade.