This is a feature allowing players to customize creatures spawned within 100 days.

Players can modify the configuration file in the config folder.

Configuration Content:

# List of entity registry names (e.g., "minecraft:zombie", "minecraft:creeper"). Spawns entities sequentially in this order.
entities = ["minecraft:zombie", "minecraft:creeper"]

# Days between Boss spawns (Min: 5, Max: 100, Default: 10)
days_interval = 10

# Whether the Boss spawn feature is enabled
enabled = true

When an entity spawns, you can open the chat bar and click the teleport button to be transported to its location.

Entities will spawn in safe zones—open spaces without obstructions—to prevent phasing into blocks or getting stuck.

This mod supports cross-dimension spawning and works with dimensions from other mods.

In most dimensions, if a safe zone cannot be located, the entity will spawn three blocks above the player's head.

If you wish to disable this feature, you may use commands:

Enable spawning: /100dayboss true

Disable spawning: /100dayboss false

Custom 100-Day BOSS