Rust Decay Calculator
Calculate structure decay in Rust. Determine how long structures will last and when they need upkeep to prevent decay.
How to Use This Calculator
- Select the structure type (Twig, Wood, Stone, Sheet Metal, or Armored).
- Enter hours since last upkeep (when you last added resources to the Tool Cupboard).
- The calculator displays current health, time until destroyed, and decay rate.
- Use this to plan upkeep schedules and prevent structure decay.
Decay Calculation Formula
Decay is calculated from structure type and time since upkeep:
Current Health = Max Health - (Hours Since Upkeep × Decay Rate)
Time Until Destroyed = Current Health / Decay Rate
Example: Stone structure (500 HP, 24h decay), 12 hours since upkeep: Decay = 500/24 = 20.83 HP/hour. Current = 500 - (12 × 20.83) = 250 HP. Time until destroyed = 250/20.83 = 12 hours. Note: Decay rates are approximate and may vary by server settings.
Full Description
Decay is a core mechanic in Rust that encourages active gameplay and base maintenance. All player-built structures decay over time if not maintained through a Tool Cupboard (TC). Understanding decay helps you plan upkeep schedules, prevent base destruction, and manage resources efficiently. Different structure tiers have different decay rates and maximum health.
Decay starts immediately after the last upkeep is consumed. Structures lose health at a constant rate until they reach 0 health and are destroyed. Higher tier structures (Stone, Sheet Metal, Armored) decay slower than lower tier (Twig, Wood), but all structures need regular upkeep. The Tool Cupboard prevents decay for structures within its radius, but it must be stocked with the required resources.
This calculator helps you understand decay mechanics. Select structure type and enter time since upkeep, and it calculates current health, decay rate, and time until destruction. Use it to plan upkeep schedules, prevent decay, or understand how long your base will last. Regular upkeep is essential for base survival in Rust!
Frequently Asked Questions
How does decay work in Rust?
Structures decay over time if not maintained. Each structure type has a decay rate and maximum health. Decay starts after the last upkeep. Structures lose health over time until destroyed. Higher tier structures decay slower but still need upkeep.
How long until structures decay?
Decay times vary by structure: Twig: 30 minutes, Wood: 12 hours, Stone: 24 hours, Sheet Metal: 48 hours, Armored: 72 hours. These are full decay times from max health. Decay starts immediately after last upkeep.
How do I prevent decay?
Place a Tool Cupboard (TC) near your base and keep it stocked with resources. The TC prevents decay for structures within its radius. Different structures require different resources in the TC. Keep the TC maintained to prevent decay.
What happens when structures decay?
As structures decay, they lose health. When health reaches 0, the structure is destroyed. Decayed structures can be repaired by adding upkeep to the TC. If decayed too much, structures may need to be rebuilt. Monitor your TC regularly!