ProtoSky
by polarbub
ProtoSky is a Fabric world generation mod that turns a new world into a vanilla skyblock-style starting island.
What it does
After a world is generated, ProtoSky removes almost all blocks and block entities, keeping only the structure bounding boxes at their original positions. Some block entities are kept. The mod does not generate starting blocks itself, so the player has to place those. It was intended to provide a vanilla skyblock style world for a ProtoTech server.
The world spawn is not set into the Nether by the mod. Players set the Nether spawn point themselves with a bed or respawn anchor, and that point has to be redone whenever it is needed. Fabric API is required, and the server runs ProtoSky alone, so players join without installing anything. The mod is open source under the MIT License and is published for Fabric across 14 release versions, 1.16.1 – 1.20.1, with 1.1.12 for 1.20.1 as the latest file.
Key features
Skyblock-style worlds
Almost all blocks are removed after generation, leaving a sparse world built around the remaining structures.
Preserved structure boxes
Structure bounding boxes stay at their original positions, so the outlines of generated structures still mark where they were.
End Portal Frames in strongholds
End Portal Frames in strongholds allow reaching the End, since the vanilla End exit below y-level 0 is kept.
Regenerated obsidian pillars
Obsidian pillars and End Crystals are regenerated, and Shulkers, Elytra and Item Frames in End Cities are retained.
Compatibility
Latest build for each game version and loader.
1.20.x2 of 2 versions with builds
1.19.x4 of 4 versions with builds
1.18.x2 of 2 versions with builds
1.17.x2 of 2 versions with builds
1.16.x4 of 4 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Skyblock servers
Server owners running a vanilla skyblock style survival server can use ProtoSky so that players start with a sparse world.
Who it’s for: Server owners who want a vanilla skyblock style world. Players on such a server do not need to install the mod.
How it compares
Better End Cities Vanilla is server-side only and published for 1.17 – 1.21.3 under the MIT License, but it is not open source. Bigger Better End Cities is also server-side only, is open source under the GNU General Public License v3.0 only, and targets 1.19 – 26.3. Both change End Cities rather than the blocks left after generation.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| ProtoSky | Fabric | 1.16.1 – 1.20.1 | Server-side only | 2023-06-16 |
| Better End Cities Vanilla | Fabric | 1.17 – 1.21.3 | Server-side only | 2024-11-30 |
| Bigger Better End Cities | Fabric | 1.19 – 26.3 | Server-side only | 2026-09-28 |
Questions
Does ProtoSky need Fabric API?
Do players need ProtoSky installed?
How is the Nether spawn point set?
Which versions does ProtoSky support?
In the catalog
ProtoSky is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 34,764 mods support Minecraft 1.20.1.
Similar mods
What the author says
This mod is intended to provide you a world in which you can play "vanilla" skyblock in the style of the ProtoTech server. It deletes (almost) all blocks and entities in the world after they generated. This is done so that the world keeps all structure bounding boxes in their original position. Keep in mind that this…
Official listing
- Modrinth page
- modrinth.com/mod/protosky
- Owner
- polarbub
- Published
- 2021-09-07
- Updated on Modrinth
- 2023-06-16
- Facts verified
- 2026-10-15