Rust Upkeep Guide: How Much Does Your Base Cost Per Day?

Every base in Rust decays if you don't keep materials in your Tool Cupboard. Understanding upkeep is the difference between logging in to a full base and logging in to a pile of rubble.

How the Upkeep System Works

The Tool Cupboard (TC) acts as the heart of your base. Every building piece within its range consumes materials over time. The game checks every few minutes and pulls from your TC automatically.

Key facts about upkeep:

• Upkeep is consumed per building tier (Twig, Wood, Stone, Metal, HQM)
• Each tier has a different cost per piece
• Decay starts only when the TC is empty
• Once decay starts, pieces lose HP until they collapse
• You have a grace period — pieces don't instantly vanish when TC empties

Upkeep Cost Per Material

Here are the upkeep costs for each tier per 24 hours for a single wall/floor/foundation:

• Wood: ~10 Wood per piece
• Stone: ~8 Stone per piece
• Metal: ~2 Metal Fragments per piece
• High Quality Metal: ~1 HQM per piece

How to Calculate Your Base's Upkeep

Count the total number of building pieces in your base (walls, floors, foundations, roofs, stairs). Multiply by the upkeep rate for each tier. This gives you your daily upkeep requirement.

Example — a 2x2 stone base with 2 floors:

• Foundations: 4
• Floors: 4
• External walls: ~12
• Internal walls: varies
• Total ~20–30 stone pieces = ~160–240 stone per 24h

For metal and HQM pieces the cost is lower per piece but harder to farm. Always keep 2–3 days of upkeep in your TC.

Tips to Reduce Upkeep

1. Keep your footprint small — fewer pieces means less upkeep.
2. Use stone for most of your base, HQM only for the most critical inner walls.
3. Don't upgrade decorative pieces (floors you don't use, double walls in non-critical areas) to HQM.
4. Store at least 3 days worth of materials in TC so offline periods don't decay your base.
5. Remove unused building pieces — every wall costs upkeep, even ones that don't serve a purpose.

Upkeep vs. Raid Cost

There's a balance to find: a base with many HQM walls is expensive to upkeep but expensive to raid. A stone base is cheap to upkeep and faster to build, but weaker. The best bases mix tiers strategically — stone for outer layers, HQM for the inner sanctum around TC and loot.