Preston
Minecraft Java mod. Downloads from the MC Java Mods app on Android.
⬇ Download on CurseForge

Preston is a "compressed block" mod - that is, it provides means of compressing sets of 9 identical blocks into 1 "compressed block" recursively, as well as decompressing them back.
Where it differs from previous approaches, however, is in a few key areas:
- Preston allows you to compress any full-cuboid block in the game, not just a selection of them.
- Preston lets you set the amount of compression levels available. By default, there are sixteen (single, double, triple, ..., sexdecuple), but you can set them all the way from just one (single) to one thousand (..., undemilluple, milluple)!
- Preston allows you to balance block compression by providing an RF/FE-powered machine, the Compressor, to faciliate this. The amount of RF/FE necessary scales with the compression level. (Optionally, you can configure it to allow crafting-based compression.)
Preston also includes mod compatibility with:
- Just Enough Items (0.2.0+)
- HWYLA (0.3.0+) - for properly supporting the Compressor's energy storage
- BuildCraft (0.3.0+) - Minecraft Joules support
- CraftTweaker (0.3.1+) - mods.preston.Compressor.addRecipe(<output>, energy_cost, <input>), mods.preston.CompressedBlocks.createStack(<block>, <amount>), mods.preston.CompressedBlocks.getMaximumCompressionLevel()
- BuildCraft (0.3.3+) - "Has Work" gate support
In addition, Preston includes an API for developers to be able to query, compress and decompress Compressed Blocks in their own machines, as well as define custom recipes for the Compressor.
I encourage you to take a look at the configuration file and have some fun with the options!
Planned features:
- ProbeDataProvider support (0.4.0+)
- EMC support (unknown - Project E does not seem to differentiate by NBT)
- Edition: Minecraft Java
- File type: .jar
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as Preston-0.3.5.jar — drop this file into the mods folder
- Download size: 140 KB
- Download link checked 22 Sept 2026 — working
These come from our own check of the pack file, not from the source page.