In shortEverything in this game flows through three repeating actions: earn Gold, blast a vault, then upgrade and go again.
The game runs on a simple cycle that you repeat throughout your whole time playing. Your tanks earn Gold, you spend that Gold to smash vaults open, and the rewards you collect let you upgrade your tanks for the next vault.
Pick a tankchoose whichever tank you have available and start earning Gold.
Earn Goldyour tank generates Gold that you will need for the vault and for upgrades.
Enter the vaulthead into the vault stage and use bombs to break it open.
Collect the rewardssmelt the Gold you pull out into Cash to use.
Upgrade your tankspend what you earned to make your tank stronger.
Repeat with a harder vaultstronger tanks unlock tougher vaults with bigger rewards.
In shortThe roll system is your main way to get better tanks.
Tanks vary in rarity, and the roll feature gives you a random tank each time you use it. Your starting tank is perfectly fine for learning the game.
Tips worth knowing
Start with whatever tank you have; you do not need a rare tank to make early progress.
Each new tank you land can be upgraded just like your starting one.
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Redeem codes
Check
In shortCodes are one-time rewards, so enter them carefully the first time.
The game has a place inside it where you can type in codes to claim free rewards. Each code can only be used once per account, so a typo means a wasted code.
Find the code entry spot inside the game before you try to redeem anything.
The main in-game currency, earned by your tanks and from breaking vaults open, and spent on upgrades and rolls.
Cash
What you get after smelting the Gold you pull from a vault.
Tank
Your unit that earns Gold automatically and can be upgraded or replaced through rolling.
Vault
The stage you enter to use bombs; harder vaults give bigger rewards.
Roll
A Gold-spending action that gives you a random tank, with a chance of landing a rare one.
Upgrade
Spending Gold to make your current tank stronger so it earns faster and handles tougher vaults.
Common questions
FAQ
Do I need to stay online for my tanks to earn Gold?
No — your tanks earn Gold even while you are completely offline. Log back in after any gap and the Gold they earned will be there waiting for you.
Which tank should I pick first?
Use whichever tank you have access to at the start. Once you have built up some Gold, you can try rolling for a rarer one, but your starting tank is enough to get the loop going.
Can I use the same code more than once?
No, each code works only once per account. Enter it carefully the first time, because a mistake means you cannot claim it again.
Updated Oct 11, 2026
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