- Vault security in Destroy a Vault scales with vault tier: standard, stronger vaults, and Boss Vault Raids.
- Breaking a vault requires total army damage, so higher-rarity robots and more placement slots clear faster.
- Gold is the reward for every destroyed vault, and stronger targets pay out more.
- Boss Vault Raids from the BOSSES update demand a fully upgraded army and Mutation Cores.
- Offline earnings keep robots generating Gold while you are away, funding your next security breakthrough.
How Vault Security Works in Destroy a Vault
Vault security is the durability wall standing between your robot army and the Gold inside. Every vault in Destroy a Vault is built around a simple loop: roll robot tanks, blast the vault until it breaks open, collect Gold, and smelt that Gold into Cash. The security of each target determines how much damage your army must deal before the vault cracks.
Vaults come in escalating tiers. Standard vaults serve as the starting content with baseline durability, while stronger vaults unlock as your army improves and feature significantly higher defenses. The BOSSES update added Boss Vault Raids, which introduce boss-level durability that only a well-developed army can break through.
| Vault Tier | Security Level | Unlock Condition | Reward Potential |
|---|---|---|---|
| Standard Vaults | Baseline durability | Available from the start | Gold |
| Stronger Vaults | Higher durability | Progress as army improves | Higher Gold payouts |
| Boss Vault Raids | Boss-level durability | BOSSES update content | Top-tier Gold from raid completion |
Attack the strongest vault your army can defeat efficiently. If attacks stall before the vault cracks, your damage output is below the security threshold — upgrade robots or expand placement slots before retrying.
Building an Army to Beat Vault Security
Vault security is only as tough as your army is weak. Since robot tanks are obtained through random rolls and divided by rarity, your damage ceiling depends on which robots you deploy and how many slots you can fill.
Roll Rare Robots
- Higher rarity means higher damage
- Rolls are random, so roll regularly
- Replace weak army members over time
Expand Placement Slots
- Slots limit active attackers
- More slots equal faster vault breaks
- High-priority upgrade path
Upgrade the Army
- Cash upgrades raise damage
- Supports stronger vault progression
- Fuels Boss Vault Raid readiness
| Robot Tier | Best Stage | Security Role | Keep or Replace |
|---|---|---|---|
| S Tier | Late game | Best damage for Boss Vault Raids | Keep and upgrade |
| A Tier | Mid game | Strong damage for stronger vaults | Keep until S replacements |
| B Tier | Early game | Starting damage for standard vaults | Keep until better rolls |
| C Tier | Filler | Lower contribution against high security | Replace gradually |
Do not strip your active army to chase rarity. A full lineup of B-tier robots breaks a standard vault faster than a half-empty army of higher-rarity tanks. Replace gradually, not all at once.
Step-by-Step: Cracking a High-Security Vault
Follow this sequence each time you face a tougher security tier for the first time.
Assess the Target
Check whether the vault tier matches your army. If your current vault breaks slowly, stay on it and farm Gold before advancing.
Fill Every Placement Slot
Deploy your strongest robots across all available slots. Empty slots are wasted damage against high-security targets.
Blast the Vault
Send the army to attack until the vault breaks open. Stronger vaults take sustained damage over longer attack runs.
Collect and Smelt Gold
Gather the Gold from the destroyed vault and smelt it into Cash through the smelting process.
Reinvest in Security-Breaking Power
Spend Cash on robot upgrades and placement slots, then attempt the next security tier when your damage output supports it.
Deployed robots keep earning Gold while you are offline. Always leave your best army placed before logging off, then collect and smelt on return to fund the next vault push.
Resource Priorities for Vault Progression
The resource chain in Destroy a Vault runs from vault destruction to long-term army growth: breaking vaults produces Gold, Gold smelts into Cash, and Cash funds the upgrades that overcome higher security tiers. Gems sit outside this loop as a premium resource.
| Resource | Source | Role | Spending Priority |
|---|---|---|---|
| Gold | Vault destruction and offline robot earnings | Smelted into Cash | Collect regularly, smelt promptly |
| Cash | Smelting Gold | Army and base upgrades | Prioritize damage and slots |
| Gems | Premium or redeem codes | Buy Mutation Cores | Save for high-value purchases |
| Mutation Cores | Purchased with Gems | Mutation progression | Use on long-term army robots |
Codes such as RELEASE (750 Cash) and UPDATE (5,000 Gems) provide confirmed boosts and can be redeemed through the game's Settings codes tab, giving extra resources for your next vault push.
Reserve Gems for Mutation Cores tied to Boss Vault Raid progression rather than routine army spending. Mutation Cores deliver the most value when applied to robots that will stay in your long-term lineup.
Vault Security Checklist
Before Attempting a Stronger Vault:
- Fill every placement slot with your best robots
- Upgrade robot damage with current Cash reserves
- Redeem active codes in Settings for bonus resources
- Collect and smelt all pending offline Gold
- Confirm current vault breaks quickly before advancing tiers
Vault Security FAQ
Q: What is vault security in Destroy a Vault?
Vault security is the durability of each vault target. Standard vaults have baseline durability, stronger vaults are tougher, and Boss Vault Raids feature boss-level durability that requires a fully developed robot army to break.
Q: How do I break a high-security vault faster?
Increase total army damage by rolling higher-rarity robots, filling every placement slot, and spending Cash on robot upgrades. More active attackers and stronger robots shorten the time needed to crack tougher vaults.
Q: Do robots keep earning Gold while I am offline?
Yes. Deployed robots generate Gold automatically while you are offline. Return to collect the accumulated earnings and smelt them into Cash to fund upgrades.
Q: What are Boss Vault Raids?
Boss Vault Raids are the highest-security targets, introduced in the BOSSES update alongside Mutation Cores. They require high-rarity, fully upgraded robots and reward significant Gold upon completion.