Lavacastling
by solirides
Lavacastling changes how cobblestone and stone generators produce blocks, and it adds a right-click cycling mechanic to pickaxes and chisels.
What it does
Lavacastling replaces the default output of lavacasting and cobblestone generators. Instead of plain cobblestone, stone generates gradually above y=8, and deepslate blends in below y=0. Stone and basalt generators keep their vanilla output, though they can still conflict with other stone generator mods that use the same method.
The mod is a server-side change, so the server needs it and players can join without installing anything. Client installs can add it for local use. It requires Fabric API and is published for Fabric only, with files for 1.21.5. The latest file is 0.3.1, released 2025-07-24 on the beta channel. The code is open source under the MIT License.
Key features
Gradual stone generation
Lavacasting produces stone that fades into deepslate with depth, so the bases it builds look natural instead of plain.
Right-click chisel cycling
Right-clicking stone with a pickaxe or chisel cycles through a list of stone, blackstone and deepslate variants.
Log stripping protection
The right-click function was set up so that players chisel stone without accidentally stripping logs.
Water over lava
Pouring water over lava in a certain way builds large lavacast structures, which suits players making bases.
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
Renewable Deepslate is a server-side only Fabric mod under the MIT License, with files for 1.21.10 – 1.21.11. Deepslate Cobble Gen runs on Fabric and Quilt for 1.21.8 – 26.1.2, and only the server needs it, so players can skip it. It is also open source under the MIT License. Both focus on generator output, while Lavacastling also adds the pickaxe and chisel cycling.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Lavacastling | Fabric | 1.21.5 | Server required, client optional | 2025-07-24 |
| Renewable Deepslate | Fabric | 1.21.10 – 1.21.11 | Server-side only | 2026-04-01 |
| Deepslate Cobble Gen | Fabric and Quilt | 1.21.8 – 26.1.2 | Server required, client optional | 2026-06-09 |
Questions
Does Lavacastling need Fabric API?
Does the server need Lavacastling?
Which game versions does Lavacastling support?
In the catalog
Lavacastling is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 15,307 mods support Minecraft 1.21.5.
Similar mods
What the author says
Doesn't lavacasting seem like a cool mechanic? Pour water over lava in a certain way, and you can easily make a megabase! If only it didn't generate ugly cobblestone... Both the cobblestone generator and chiseling are fully configurable in the mod's config file (.minecraft/config/lavacastling.json). For multiplayer…
Official listing
- Modrinth page
- modrinth.com/mod/lavacastling
- Owner
- solirides
- Published
- 2025-07-13
- Updated on Modrinth
- 2025-07-24
- Facts verified
- 2026-10-15