Mild

A living peaceful world — full mob ecosystem, zero harm to players.

A Minecraft Fabric mod that allows you to enjoy a complete monster ecosystem in Peaceful difficulty.

Features

All features only take effect in Peaceful difficulty:

Monsters spawn naturally: All monsters (zombies, skeletons, creepers, slimes, etc.) spawn naturally
Hostility between mobs preserved: Monsters still attack each other (e.g., zombies attack villagers, skeletons shoot creepers)
Bosses can spawn: Wither and Ender Dragon can spawn and exist normally

Monsters don't attack players: All monsters (including bosses) will not target players
Global damage immunity: Players take no damage from any source (falling, suffocation, lava, etc.)
Negative effect protection: Negative effects (poison, wither, hunger, slowness, mining fatigue, etc.) are blocked
Void protection: Players falling into the void are teleported to a safe location and fully healed

Food is always edible: Food can be consumed even when hunger is full
Random buff effects: Eating food grants 1-3 random beneficial effects (strength, speed, resistance, regeneration, etc.)

Undead mobs don't burn in sunlight: Zombies, skeletons, and other undead don't burn in sunlight

Version	Status
Minecraft 1.20.1	✅ Complete
Minecraft 26.2	✅ Complete

This mod uses Mixin technology to intercept the following Minecraft behaviors:

Feature	Method Intercepted
Monster Spawning	`EntityType.canSpawn()`, `SpawnPlacements.checkSpawnRules()`
Monster Targeting	`Mob.setTarget()`
Monster Despawning	`Mob.checkDespawn()`
Food Edibility	`ItemStack.isEdible()`
Food Effects	`ItemStack.finishUsingItem()`
Damage Immunity	`Player.hurtServer()`
Negative Effects	`LivingEntity.addEffect()`
Void Protection	`Entity.checkBelowWorld()`
Sunlight Burning	`Mob.isSunBurnTick()`

MIT License