Cyclic Dungeons
by Lying
Cyclic Dungeons generates procedural dungeons from a set of structural rules, so each dungeon layout differs from the last.
What it does
Cyclic Dungeons combines several procedural generation principles to build dungeons that are complex and aesthetic. A dungeon starts from a sentence rewritten by grammar rules, and that turned structure is then laid out in the world. Individual rooms are assembled from a predefined set of 2x2x2 tiles, each chosen for a function or theme, which keeps every room unique while the whole stays reasonably sensible. The mod requires Architectury API and runs on Fabric and NeoForge for 1.21.4, with client and server both needing it. It is open source under the MIT License.
Key features
Grammar-based layouts
Each dungeon's structure is produced by rewriting a sentence through grammar rules and turning the result into a world layout.
Predefined room tiles
Rooms are built from a fixed set of 2x2x2 tiles, each tied to a function or theme within the dungeon.
Varied yet sensible rooms
The generator aims for rooms that feel distinct from one another while the dungeon still reads as a coherent place.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
The Dungeons is a Fabric server-side mod for 1.21.8 – 1.21.11 under All rights reserved, so it is not open source. Fantastic Dungoneer is a NeoForge mod for 1.21.1 that both client and server must run, released under All rights reserved.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Cyclic Dungeons | Fabric and NeoForge | 1.21.4 | Client and server | 2026-01-22 |
| The Dungeons | Fabric | 1.21.8 – 1.21.11 | Server-side only | 2026-10-11 |
| Fantastic Dungoneer | NeoForge | 1.21.1 | Client and server | 2026-04-23 |
Questions
Does Cyclic Dungeons need Architectury API?
In the catalog
Cyclic Dungeons is one of 19,031 Adventure mods on ModsFinder, and one of 10,052 Adventure mods for Fabric. 17,979 mods support Minecraft 1.21.4.
More from Lying
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What the author says
Tired of dungeons that are just a singular repetitive room or a series of rooms randomly connected together? Desiring a more diverse experience with a bit more sense to its progression? Cyclic Dungeons aims to combine several procedural generation principles to create dungeons that are aesthetic, complex, and…
Official listing
- Modrinth page
- modrinth.com/mod/cydun
- Owner
- Lying
- Published
- 2025-11-13
- Updated on Modrinth
- 2026-01-22
- Facts verified
- 2026-10-15