Tree Physics
by Farcr
Tree Physics makes trees fall with physics when they are cut down, using the Sable physics library for the falling motion.
What it does
Once a tree is chopped, its trunk and leaves separate from the ground and drop as a physical object, so the fall plays out in the world rather than as a block-by-block removal. The effect depends on the tree: only trees with Rooted Dirt beneath them turn into falling trees when cut. Chopping a tree while crouching changes how the fall behaves, and the detached tree is kept as a sub-level that stays in the world instead of despawning, so a fallen tree can be built with afterwards.
The mod depends on Fabric API and Sable, and it is published for both Fabric and NeoForge. Tree Physics runs on the client and server together, so the server and every player need it. Files exist for 1.21.1 only, with fabric-2.4 and neoforge-2.4 both dated 2026-08-20, and the first release was published on 2026-04-22.
Key features
Realistic tree falling
Cut trees topple with a physical fall instead of disappearing block by block.
Rooted Dirt trees only
The physical fall applies only to trees that have Rooted Dirt below them.
Crouch-chopping
Chopping a tree while crouching changes how it turns and falls.
Persistent fallen trees
A detached tree becomes a sub-level that does not despawn, so it can be built with.
Configurable behavior
Several properties can be changed through the mod's config and datapacks.
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 2
How it compares
Falling Trees Physics is open source under the MIT License, published for NeoForge across 1.21 – 1.21.11, and is server required with the client optional. Sable Physics Tree is also a NeoForge mod for 1.21.1, built for both client and server and released under the MIT License, but it is not open source. Dynamic Falling Tree offers a Fabric option for 1.21.1 under the MIT License. Tree Physics is not open source and is published under All rights reserved.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Tree Physics | Fabric and NeoForge | 1.21.1 | Client and server | 2026-08-20 |
| Falling Trees Physics | NeoForge | 1.21 – 1.21.11 | Server required, client optional | 2026-05-28 |
| Sable Physics Tree | NeoForge | 1.21.1 | Client and server | 2026-09-06 |
| Dynamic Falling Tree | Fabric | 1.21.1 | Client and server | 2026-05-21 |
Questions
Does Tree Physics need Sable?
Does the server need Tree Physics?
Which loaders have Tree Physics?
Can the falling behavior be changed?
In the catalog
Tree Physics is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 32,366 mods support Minecraft 1.21.1.
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Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/tree-physics
- Owner
- Farcr
- Published
- 2026-04-22
- Updated on Modrinth
- 2026-08-20
- Facts verified
- 2026-10-15