ModsJava
Ex Compressum
Ex Nihilo Addon that reduces grind by adding compressed hammers and automation tools. Free Minecraft Java mod for 1.21.1, 1.21.10, 1.21.9.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.







Ex Compressum is an Ex Nihilo addon that provides tools to reduce the initial grind in skyblocks in a balanced way.
In Minecraft 1.10.2, it supports both Ex Nihilo Omnia as well as Ex Nihilo Adscensio.
In Minecraft 1.12, it supports Ex Nihilo: Creatio.
In Minecraft 1.20.1, it supports Ex Nihilo: Sequentia, Ex Deorum and Fabricae Ex Nihilo.
In Minecraft 1.21.1, it supports Ex Nihilo: Sequentia and Ex Deorum.
In Minecraft 26.1 and above, it supports Ex Deorum.
- Compressed Hammers to break Compressed Blocks into nine of their smashed version (e.g. Compressed Gravel -> 9 Sand)
- Compressed Crook which is four times as fast as a normal crook, but only twice as durable
- Heavy Sieve to sift compressed blocks directly, at a small loss of efficiency
- Auto Compressor to automatically compress items into blocks (e.g. Broken Ores into Ore Gravel)
- Auto Sieves and Auto Hammers
- Wooden Crucible to extract water from plants, as an alternative to rain
- Animal baits that can be placed to spawn cows, pigs, chicken, sheep, ocelots and wolves outside of their natural biome

Verified by MCModsHub
- Ships as ExCompressum_1.16.5-4.0.2.jar — drop this file into the mods folder
- Download size: 694 KB
- Download link checked 8 Sept 2026 — working
These come from our own check of the pack file, not from the source page.

