SpawnForce
by Bahanos
Players who notice that certain mobs never appear in their world can install SpawnForce, a Fabric mod that forces listed entities to spawn past Minecraft's own spawn checks.
What it does
SpawnForce bypasses the three vanilla canSpawn gates: the SpawnHelper location check, the SpawnRestriction predicate that a mod registers, and the per-mob MobEntity override. Mobs held back by light level, specific ground blocks, biome lists or hardcoded restrictions can then appear in places where they would otherwise never generate, including custom biomes and worlds whose datapack declares them.
The mod is config-driven and mod-agnostic. A config file holds a whitelist of entity IDs, and only those entities skip the checks; every other spawn keeps its normal rules. An optional debug log reports how often each entity's bypass fires, with periodic statistics. The bypass has its own toggle, so a server can enable only what it needs. Changes to the config take effect after the game is restarted.
Key features
Entity whitelist
Specific entity IDs listed in the config file are the only ones that bypass the spawn checks.
Three vanilla gates bypassed
The location check, the registered spawn predicate and the per-mob override are all skipped for listed entities.
Debug logging
An optional log shows bypass hits per entity along with periodic statistics for checking what the mod changes.
Separate bypass toggle
The bypass can be switched off on its own, so only the needed entities are forced to spawn.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Mobs from other mods
Many modded mobs, such as the orcs, shamans and fungi of AdventureZ or the bosses of Marium's Soulslike Weaponry, refuse to spawn because of restrictive predicates. Whitelisting them lets them appear.
Custom biomes and datapacks
Entities that a datapack's worldgen declares in custom biomes can be forced to spawn there, even when the biome's own rules would block them.
Modpack spawn tuning
A modpack maker can keep the list of forced entities small, enabling the bypass only for the mobs the pack depends on.
Who it’s for: SpawnForce suits modpack makers and server owners who run Fabric and want specific mobs from other mods, or mobs stuck behind restrictive spawn rules, to appear in their world. It is most relevant on modpacks such as Legends Reborn and Medieval modpacks, where many mob mods are combined.
Questions
Does SpawnForce need to be installed on both sides?
Which entities does SpawnForce affect?
Do config changes apply without a restart?
In the catalog
SpawnForce is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 34,764 mods support Minecraft 1.20.1.
More from Bahanos
Similar mods
What the author says
SpawnForce is a lightweight Fabric mod that forces specific entities to spawn by bypassing Minecraft's three canSpawn gates. Many modded mobs (AdventureZ orcs/shamans/fungi, Marium's Soulslike Weaponry bosses, and others) ship with strict spawn predicates (light level, specific blocks, biome hardcoded lists) that…
Official listing
- Modrinth page
- modrinth.com/mod/spawnforce
- Owner
- Bahanos
- Published
- 2026-04-15
- Updated on Modrinth
- 2026-04-15
- Facts verified
- 2026-10-15