LittleCraft is a NeoForge mod for Minecraft 26.2, designed to bring immersive Age Regression (Agere) and ABDL elements into roleplay gameplay. It introduces dynamic character scaling, functional roleplay items, and unique player-to-player interactions tailored for community servers where size mechanics and thematic props matter.

Key Features:

• Dynamic Age Scaling: Your player model, hitbox, and camera height scale smoothly based on your selected age (ranging from 6 to 18).
• Functional Diapers: Adds wearable diapers for immersive roleplay.
  • The System: The diaper has capacity and used attributes that calculate its visual wetness; these attributes can be extended by adding additional padding. While equipped, the diaper transfers fluid from the player's bladder to the diaper's NBT data to simulate wetness or fullness. The player model visually updates to reflect its current state.
  • Custom Designs (NBT): Supports custom textures via the DESIGN NBT tag. Expand available styles by adding textures to littlecraft/textures/item/diaper/{design}/ (dry.png, wet.png, full.png) and declaring the design in the item model JSON. Texture state thresholds: dry < 10 ml, full ≥ capacity − 100 ml or ≥ 5000 ml, wet otherwise.
  • Interactive Diaper Changing: Another player can change your diaper by right-clicking you while holding a fresh diaper in their main hand.
  • Bi-color Tinting: The item icon supports two independently dyeable color layers (base + overlay) blended via the MC dye recipe.
• Body Mechanics — Bladder & Stomach:
  • Per-food data-driven values: every food item maps to explicit stomach (g) and bladder (ml) amounts defined in data/<namespace>/littlecraft/food_effects/<item>.json. All 42 vanilla foods ship with defaults. Other mods can add their own files under data/<modid>/littlecraft/food_effects/ without a compile-time dependency on LittleCraft. Values are fully datapack-overridable.
  • Digestion buffers: eating fills an eaten buffer; drinking fills a drinked buffer. These drain gradually into their respective reservoirs — eaten → stomach at 1 g / 20 ticks, drinked → bladder at 1 ml / 5 ticks. Both buffers are unbounded. Cake block eating is also captured (including all candle-cake variants).
  • Need effect: if a buffer tries to drain but its target reservoir is already full, the drain is skipped and the Need effect (amber, no particles) is applied for 5 s, signalling urgency.
  • Pressing the Piss keybind transfers fluid from the bladder. Pressing the Poop keybind expels stomach contents.
  • Output priority (both piss and poop): equipped diaper (if not full) → any other equippable pants (marks as pooped/wet; applies Shame) → seated potty → bare floor (applies Shame). Performing either action without a diaper or potty now always works and always applies the Shame effect (crimson, no particles, 30 s).
  • Incontinence — age-based involuntary release:
    • Every 10 ticks, if bladder is at capacity with drinked ≥ bladderCap / 2, or stomach is at capacity with eaten ≥ stomachCap / 2, a random roll is made.
    • Chance scales with age: age < 18 → up to 30 % (younger = higher, linear from 30 % at age 0 to ~1.7 % at age 17); age 18–40 → 0.1 % base floor; age > 40 → up to 30 % (linear, capping at age 70).
    • On a successful roll the Incontinence effect is applied for 5–10 s (random).
    • While Incontinence is active (every 40 ticks, only if not actively using the Piss key): performs involuntary piss through the full routing chain, with amount scaling by bladder fullness (max(1, bladder × 24 / bladderCap)). If stomach is simultaneously at capacity, also performs one involuntary poop through the same routing chain.
  • The Stink effect is applied whenever an item tagged is_pooped is equipped in the legs slot, regardless of item type.
• Potty (16 colors): Functional sit-on block available in all 16 dye colors.
  • Right-click to sit; press Shift to stand up.
  • Stores up to 1 000 ml of piss and 1 000 g of poop independently.
  • Broken with contents → drops the potty item carrying its NBT data, exactly like a shulker box. Re-placing restores the stored amounts.
  • Placing the potty in a crafting grid (no other items) resets both values to zero.
• Carry Mechanic: Adult players (age 18+) can pick up little players (ages 6–12) by right-clicking them with an empty main hand.
  • The carried player is visually held at arm's height and loses movement control, though they retain full camera rotation.
  • Either player can end the carry at any time by pressing Shift.
  • Both players receive clear chat notifications when the interaction starts and ends.
• Customizable Thigh-Highs: A versatile character personalization item for the feet slot.
  • Dual-Color Blending: Two independently dyeable color layers — base fabric and stripes — blended using the standard MC dye recipe (1 dye = both layers, 2 dyes = first → base, second → stripes).
  • Enchantment Support: Zero armor points but fully enchantable for utility.
• Pacifier: A wearable head-slot item rendered as a 3D model on the player's face using the vanilla CustomHeadLayer pipeline (same mechanism as carved pumpkin).
  • Dual-Color Blending: Two independently dyeable parts — nipple/body and guard ring — using the same blending logic as Thigh-Highs.
  • In inventory and in-hand, displays as a flat two-layer icon tinted by the active colors.
  • On the head, switches to a physical box-geometry block model with tintindex-based coloring.
  • Crafted from a diamond ring of Plastic pieces.
• Cozy Cribs: Decorative and functional colored cribs tailored specifically for little players.
• New Potions:
  • Potion of Regression: Brewed from an Awkward Potion and a Golden Dandelion.
    • Drinking: Reduces the player's age by 1.
    • Splash Variant: Reverts adult animals and monsters into their baby forms (where applicable).
  • Potion of Growth: Brewed from an Awkward Potion and Bone Meal.
    • Drinking: Increases the player's age by 1.
    • Splash Variant: Forces baby animals and monsters to grow into adults instantly.
    • Lingering Variant: Acts as a continuous AoE fertilizer, applying a bone meal effect to nearby crops and plants once per second while the cloud is active.

Result	Ingredients
Potion of Regression	Awkward Potion + Golden Dandelion
Potion of Growth	Awkward Potion + Bone Meal

Splash and Lingering variants follow standard vanilla brewing (Gunpowder / Dragon's Breath).

Supported languages:

• English (en_us)
• French (fr_fr)
• German (de_de)
• Japanese (ja_jp)
• Russian (ru_ru)
• Spanish (es_es)
• Ukrainian (uk_ua)

LittleCraft supports both Singleplayer and Multiplayer environments.
Player data is stored using NeoForge Attachment Types and synced between client and server.

MobEffects:

Data-driven food effects (SimpleJsonResourceReloadListener):

• Folder: data/<namespace>/littlecraft/food_effects/<item>.json
• Format: { "stomach": <int>, "bladder": <int> }
• The file's namespace + path resolves directly to the item/block Identifier (e.g. data/minecraft/littlecraft/food_effects/apple.json → minecraft:apple).
• Ships with defaults for all 42 vanilla food items. Other mods drop a file under their own namespace — no compile dependency required. Datapacks can override any entry.
• Fallback values for unregistered items: EAT animation → +5 stomach / +10 bladder; DRINK animation → +250 bladder.

Custom MobEffects (littlecraft:regression, littlecraft:growth) are instantaneous and apply their logic immediately when the potion is consumed or the splash hits an entity.

The Potty block entity stores piss (0–1000 ml) and poop (0–1000 g). On break, the values are serialised into DataComponents.BLOCK_ENTITY_DATA on the dropped item and restored automatically when the item is re-placed, following the same pattern as vanilla shulker boxes.

The Diaper, Thigh-Highs, and Pacifier store their color and state data in DataComponents.CUSTOM_DATA. Item model tinting uses the MC 26.2 items/*.json pipeline with registered ItemTintSource types (littlecraft:thigh_highs_base_color, littlecraft:thigh_highs_stripe_color, littlecraft:pacifier_body_color, littlecraft:pacifier_ring_color). The is_pooped boolean in CUSTOM_DATA on any equippable legs item triggers the Stink effect each server tick.

• Current Maintained Minecraft Version: 26.2
• No backports to older versions are planned.

• Additional caregiver interaction mechanics (feeding, rocking, etc.).
• Additional baby equipment (plushies, toys, high chairs, bottles).
• Additional diaper designs and customization options.

GPL-3.0-only - see LICENSE for full terms.

David Eichendorf (dev1lroot / DavyBoy)
Contact: admin@dev1lroot.com