Immersive Tool Aging

Dynamic dirt, blood, rust, and combat grime – fully procedural, fully gameplay-integrated, and compatible with almost every item out of the box.

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Key Features

Procedural Dirt & Damage (Mod-Friendly, Zero Setup)

• No resource packs required: overlays are generated at runtime using noise and pixel hashing.
• Works on tools, weapons, armor, and shields (including banner patterns).
• Over 15 tracked substances: dirt, sand, snow, ash, blood, slime, ink, rust, burns, and more.
• Supports emissive fluids like Glow Ink, Warden blood, and Enderman blood.

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Blood Has Consequences

Visual blood directly influences gameplay and mob behavior:

• The Scent of Blood: At night, heavily bloodied players may (very rarely!) attract wolf packs.
• Animals or Villager run; if you are covered in blood.
• Monsters could smell you from further away.
• Warden Repulsion: Most hostile mobs avoid players covered in Warden blood.
• Wither Aura: High Wither blood creates a damaging debuff aura.
• End Glitches: End blood on held items can randomly teleport the player.
• Harmful Substances Attacking with dirty weapons may apply minor effects on hit targets.

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Combat Splatter, Decals & Footprints

• Hits splatter mob-specific fluids on gear and terrain.
• Blood puddles form; step in them to dirty your boots leave temporary bloody footprints.
• Squids release ink that inflicts Blindness or Glowing.

Recommended image:
A battleground with puddles, footprints, and varied mob blood colors.

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Environment-Aware Dirt

• Dropped items absorb fluids and pick up environmental dirt from blocks they touch.
• Loot on spawned mobs comes with biome-appropriate aging.
• Slot-specific stains: boots develop gradients from grass; helmets and chestplates show patchy scuffs.

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Rust, Burns & Maintenance

• Metallic gear rusts when exposed to water or rain, increasing durability loss.
• Water removes dirt, but Rust and Burns require a Grindstone.
• Dirty food applies themed debuffs (e.g., Mining Fatigue from sand, teleportation from End blood).

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Cleaning & Inventory Logic

• Clean items by rain, swimming, Water Cauldrons, or splash water bottles.
• Splash bottles also dissolve ground decals.
• Inventory contagion keeps items stackable: merging stacks applies the highest dirt level.

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Performance & Compatibility

• Texture overlays are cached for minimal overhead.
• A central performance handler culls old decals and footprints under server load.
• Sodium detection prevents conflicts: overlays disable automatically if Sodium runs without Indium.

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Design Philosophy

Immersive Tool Aging aims for immersion, mechanical relevance, and low friction.

• Universal procedural generation: Works with any item without configs or external assets.
• Performance-first: Caching and adaptive culling protect FPS/TPS.
• Anti-tedium inventory: Smart stacking avoids clutter and lots of stacks of 1 item that can't stack.
• Form follows function: Visual wear reflects actual mechanics (rust = faster durability loss). But in a organic way and without to much impact.
• Diegetic interaction: Cleaning and repair happen through world actions, not menus.
• Context-aware and lore-driven: Mob fluids and environmental materials behave uniquely. There are a lot of suprises and interactions that just make sense. (If you've got more ideas join my Discord!!)
• Soft-failure integration: Features blend into vanilla logic and disable gracefully if needed.

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Planned Direction

Expected future focuses include:

• Configuration options
• Additional environmental substances and unique mob fluids.
• More mob behavior tied to biological contaminants, maybe villagers give bad trades if you are dirty.
• Blood dripping from your armor or tools if you've freshly gotten them dirty.
• Wetness and wet steps, imagine leaving water on your carpet after you've came home during a storm. Along with water puddles you can step on that reflect light like you'd expect.
• More item compatability. Doesnt support modded items that have their own 3d models too well if at all.
• Doesnt support vanilla items like: Tridend, Skulls or Playerheads (Bloody skulls would be so cool)
• Explosion decals
• Some more unique features for unique monster blood.
• Player's skins could get dirty

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About the Project

Immersive Tool Aging is created by an individual developer.
This is my first released mod, built to push immersion as far as possible while maintaining performance and a vanilla(ish) feel.