Vault

Vault is a defensive storage building used to protect and contain items inside a base. It functions as an armored container that resists enemy damage and fire, preventing stored items from being easily destroyed or incinerated. Vault is intended to sit behind walls or inside layered defenses where it can safely hold large amounts of resources for production, unit construction, or core construction.

Vault has high health and built-in armor, making it much more resistant than ordinary storage such as chests or containers. Because it reduces the risk of losing stored items to bombardment or enemy wreckage explosions, Vault is commonly placed near factories, repair facilities, or core areas that must keep supply lines alive under attack. Its construction cost is higher than basic storage, so Vault is used when protection is required rather than as cheap bulk capacity.

• Vault is best used behind external defenses (walls, turrets, doorways) or inside reinforced core zones so enemies must break through multiple layers before accessing stored resources. Placing Vaults behind conveyors and sorter networks ensures supply continuity even while defenders focus on repelling attackers.
• Vault’s armor makes it resistant to both ballistic and explosive damage; pair Vault with repair units or repair turrets to recover damage sustained during raids.
• Vault prevents items from being incinerated by environmental or core-specific mechanics that destroy loose items; on maps or planets where cores or zones incinerate unused items, keeping resources inside Vaults preserves them for later use.
• Use multiple Vaults to segment different resource types (e.g., one Vault for metals, another for liquids/compound items) so a single breach does not expose all supplies at once.
• Since Vault costs more than basic storage, balance deployment: early-game rely on cheaper containers and upgrade to Vaults when sustained pressure or siege threats appear.
• Vault integrates with conveyor and sorter systems; ensure input/output points are protected and not directly exposed to enemy flanks so attackers cannot manipulate or steal items in transit.

Vault is a strategic building: its value comes from survivability and secure storage rather than raw capacity. Place Vaults as part of layered defenses and pair them with active repairs, turrets, and controlled access to maximize their utility in prolonged base defense and logistics management.