Spawn Floors
by GGGUSZ
Spawn Floors is a small Fabric mob mod in which special floor tiles repeatedly try to spawn mobs in the area around them.
What it does
Each floor tile is a block that randomly attempts to spawn mobs nearby. The mob set depends on the floor type, and three floors are included: Slime Floors, Bone Floors and Rotten Floors. The floors are crafted with a golden apple and a mob-specific material, and the spawns that come out of them drop items that can be collected from the surrounding area.
The mod was built as a practice project in Minecraft modding and is intended as a simple, standalone spawner rather than a full mob overhaul. The author notes that it does little beyond mob farming and hopes it will find a place in a modpack where farming mobs matters. It has no content beyond the floors and their spawns.
Spawn Floors runs on client and server, so both the server and every player need the mod. It is published for Fabric only, with files for 1.20.1, 1.20.2, 1.20.3 and 1.20.4, and it is released under the MIT License. The code is not open source.
Key features
Three spawning floors
Slime, Bone and Rotten floors each try to spawn a different set of mobs.
Crafted with a golden apple
Each floor is made from a golden apple and a mob-specific ingredient, so the floors are crafted rather than found.
Biome and dimension sensitivity
The mobs that appear depend on the biome or dimension where a floor is placed.
Mob drops nearby
Drops from the spawned mobs land on the ground around the floor, ready to be picked up.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Mob farming in modpacks
Farming mobs is the main purpose, and the floors fit into modpacks where mob drops are important.
Practice project
The small codebase suits players who want to study how a simple Fabric mod is structured.
Who it’s for: Players building a mob farm in a survival or modpack setting, and Fabric developers looking at a small, self-contained example of a spawning mod.
How it compares
Tiled is a Fabric mod for 1.20.1 – 1.21.1 with client and server environment under the MIT License, and it is not open source. Light Level 7 Spawning is a Fabric server-side only mod for 1.20.1 that is open source under the MIT License. Celestial Blocks is a Fabric mod for 1.20.1, with client and server environment, under All rights reserved, and it is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Spawn Floors | Fabric | 1.20.1 – 1.20.4 | Client and server | 2025-08-03 |
| Tiled | Fabric | 1.20.1 – 1.21.1 | Client and server | 2026-09-14 |
| Light Level 7 Spawning | Fabric | 1.20.1 | Server-side only | 2024-01-26 |
| Celestial Blocks | Fabric | 1.20.1 | Client and server | 2024-11-26 |
Questions
Does Spawn Floors need Fabric API?
Does the server need Spawn Floors?
Which game versions does Spawn Floors support?
In the catalog
Spawn Floors is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 13,907 mods support Minecraft 1.20.4.
More from GGGUSZ
Similar mods
What the author says
I recently started playing corekeeper, in that game enemies spawns are based on carpet like tiles, each with a different set of mobs they spawn randomly. So i thought about making something similar in minecraft to practise modding! ### How does it work there are 3 different "Spawn Floors", crafted with a golden apple…
Official listing
- Modrinth page
- modrinth.com/mod/spawn-floors
- Owner
- GGGUSZ
- Published
- 2025-08-02
- Updated on Modrinth
- 2025-08-03
- Facts verified
- 2026-10-15