Mo' Structures (NeoForge/Fabric)
by frqnny
Players who want more to find while exploring a Fabric or NeoForge world can add Mo' Structures, a server-side world generation mod with mini-dungeons, floating castles and themed lore.
What it does
The mod adds structures to a vanilla world, including dark mazes, floating castles and camps where pillagers gather. Each structure is built from jigsaw pieces and can carry loot tables, advancements and unused bosses, so a single structure can give a run its own goal and rewards. The author describes the focus as the role-playing side of a world, where player choices change how a run unfolds, rather than surface decoration.
Mo' Structures is installed on the server, and players join without installing anything. Builds are published for Fabric and NeoForge across 15 release versions, 1.16.4 – 1.21.8, and the latest file for both loaders is 1.6.0+1.21.8 for 1.21.8, released on 2025-08-07. The code is open source under the GNU Lesser General Public License v3.0 only. Snapshot builds are also published.
Key features
Mini-dungeon structures
Dungeons such as dark mazes add short, self-contained areas to explore.
Floating castles
Castles built in the sky give players a destination that is far from the ground.
Pillager encampments
Camps of pillagers place hostile groups in the world for players to fight.
Integrated lore
Structures carry story elements that tie the sites together through their loot and layout.
Unused bosses
Boss encounters use mobs that vanilla leaves unused, placed inside certain structures.
Compatibility
Latest build for each game version and loader.
1.21.x5 of 5 versions with builds
1.20.x3 of 3 versions with builds
1.19.x2 of 2 versions with builds
1.18.x1 of 1 version with builds
1.17.x2 of 2 versions with builds
1.16.x2 of 2 versions with builds
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Use cases
Survival runs with goals
Players who want a reason to travel can set off toward a structure that offers its own loot and challenge.
Multiplayer servers
Server owners can add the structures without requiring any client-side installation.
Who it’s for: Players who want more places to find in a plain vanilla world, and server owners who want added structures without asking players to install a mod.
How it compares
Simple Structures: Ad Astra is a Fabric, Forge and NeoForge mod for 1.19 – 1.21.1 that is server required and client optional, released under the MIT License. Combat Structures is a Forge and NeoForge mod for 1.19.2 – 1.21.1 that needs both the client and the server, released under the MIT License.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Mo' Structures (NeoForge/Fabric) | Fabric and NeoForge | 1.16.4 – 1.21.8 | Server-side only | 2025-08-07 |
| Simple Structures: Ad Astra | Fabric, Forge and NeoForge | 1.19 – 1.21.1 | Server required, client optional | 2026-09-16 |
| Combat Structures | Forge and NeoForge | 1.19.2 – 1.21.1 | Client and server | 2025-05-29 |
Questions
Do players need to install Mo' Structures?
Which loaders have files?
In the catalog
Mo' Structures (NeoForge/Fabric) is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 17,695 mods support Minecraft 1.21.8.
More from frqnny
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What the author says
Starting in 1.21, this mod requires Architectury API! Discover exciting structures with fun mini-dungeons and integrated lore!
Official listing
- Modrinth page
- modrinth.com/mod/mo-structures
- Owner
- frqnny
- Published
- 2020-12-08
- Updated on Modrinth
- 2025-08-07
- Facts verified
- 2026-10-15