Propane
by tutu00121
Propane is a Forge performance mod for Minecraft 1.20.1 that trims CPU and memory overhead while keeping vanilla behavior and visuals.
What it does
Propane targets frame stability and latency in heavily modded or large-world setups, aiming to help low-end systems run the game more smoothly without changing how mechanics behave. Its occlusion culling handles only the parts of a world that are visible, which lowers processor load in sprawling constructions. Lazy tick handling postpones updates for non-critical tile entities such as hoppers and furnaces, and memory leak patches address typical sources of memory growth in modified installs.
Mob pathfinding is offloaded to background threads, which can make mob AI run more smoothly in large worlds. Visual changes stay minimal: the game looks nearly identical, though particles, clouds and some chunk rendering are reduced in extreme cases. The mod is built to coexist with other server-side mods and a number of client-side mods, and is compatible with heavily modded packs.
Propane is client-side only, so servers do not need it and players install it alone. It is released under the MIT License and is open source, with its source code published. Files exist for Forge 1.20.1, with the 1.0.0-Full build dated 2025-06-11 as the only release so far.
Key features
Occlusion culling
Only the parts of the world that are visible are processed, reducing CPU load in large builds.
Lazy tick system
Non-critical tile entities such as hoppers and furnaces receive dynamically delayed updates without changing their behavior.
Multithreaded pathfinding
Mob pathfinding runs on background threads, which keeps mob AI smoother in large worlds.
Memory leak patches
Typical causes of memory growth are prevented in both vanilla and modified setups.
Minimal visual impact
Minecraft looks almost the same, with only particles, clouds and some chunk rendering reduced in extreme cases.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
FalseTweaks is a Forge mod for 1.7.10 that works on either side, and neither needs it, released under the GNU Lesser General Public License v3.0 or later and open source. MicroOptimizations is a client-side only Forge mod for 1.8.9 under the GNU Lesser General Public License v2.1 only. Memory Leak Fix covers Fabric, Forge and Quilt for 1.14.4 – 1.20.4, works on either side without needing it, and is also open source under the GNU Lesser General Public License v2.1 only. Propane differs by targeting only Forge 1.20.1 and running on the client alone.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Propane | Forge | 1.20.1 | Client-side only | 2025-06-11 |
| FalseTweaks | Forge | 1.7.10 | Client or server, optional | 2026-08-09 |
| MicroOptimizations | Forge | 1.8.9 | Client-side only | 2024-08-08 |
| Memory Leak Fix | Fabric, Forge and Quilt | 1.14.4 – 1.20.4 | Client or server, optional | 2024-01-06 |
Questions
Does Propane need to be installed on the server?
Which loaders does Propane support?
Does Propane change how mobs or redstone behave?
In the catalog
Propane is one of 3,545 Optimization mods on ModsFinder, and one of 1,441 Optimization mods for Forge. 34,764 mods support Minecraft 1.20.1.
Similar mods
What the author says
🧪 What is Propane? Propane is a performance-focused Minecraft optimization mod built to minimize CPU and memory overhead without altering visuals or breaking vanilla mechanics. It's goal is to serve as a drop-in solution to improve frame stability, reduce latency in heavily changed environments, and help low-end…
Official listing
- Modrinth page
- modrinth.com/mod/propane-mod
- Owner
- tutu00121
- Published
- 2025-06-11
- Updated on Modrinth
- 2025-06-11
- Facts verified
- 2026-10-15