Lethy's Quarry
by lethargos
Lethy's Quarry is a Fabric technology mod that adds an automated block-harvesting machine, the Quarry, which needs fuel and a drill bit to run.
What it does
The Quarry works downward within a locked chunk area and stores its drops in an internal inventory. Once it is powered, it works through the blocks on its own, and the drill bit set in the machine determines the size of the area it covers and how fast it works. Drill bits come in several tiers, and a better bit covers a wider area at a higher speed. Standard furnace fuels such as coal are accepted.
A 9-slot item filter matrix in the interface lets the machine skip junk blocks or collect only chosen ores, using a whitelist or a blacklist toggle. Its power switch and tooltips show the machine's state, including whether it is running, idle, out of fuel, full, or at its Y limit. Hoppers can feed fuel into the top and take items out of the bottom, and the mod is hopper compatible. The mod is published for Minecraft 1.21.1 only and is released under All rights reserved, so it is not open source. Servers that run it need every player to install it too. Fabric API is required.
Key features
Drill bits by tier
Drill bits of different sizes set the working area, and higher tiers cover wider areas faster.
Item filter matrix
A 9-slot filter with whitelist and blacklist modes selects which ores to collect or which blocks to skip.
Power switch and live status
The interface toggles the machine directly and shows whether it is running, idle, out of fuel, full, or at its Y limit.
Hopper input and output
Hoppers can insert fuel from above and remove collected items from below.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Large-scale gathering
The Quarry works through a large area on its own, which suits collecting resources over a long stretch of time.
Who it’s for: Players who want a configurable automated harvester for mid-game resource gathering on Fabric 1.21.1 and do not want to clear large areas by hand.
How it compares
Simple Quarries is an MIT-licensed Fabric mod that is not open source under the same terms here, with files that span 1.19.2 – 26.2. Simplified Drills is a Fabric mod for 1.20 – 1.20.4 under All rights reserved, so it does not cover 1.21.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Lethy's Quarry | Fabric | 1.21.1 | Client and server | 2026-03-27 |
| Simple Quarries | Fabric | 1.19.2 – 26.2 | Client and server | 2026-08-02 |
| Simplified Drills | Fabric | 1.20 – 1.20.4 | Client and server | 2024-04-07 |
Questions
Does Lethy's Quarry need Fabric API?
Does the server need Lethy's Quarry?
What fuel does the Quarry use?
In the catalog
Lethy's Quarry is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
Lethy's Quarry is a fully automated, configurable block-mining machine designed for Minecraft 1.21.1 (Fabric). Designed with vanilla-friendly balancing and aesthetic mechanical integrations, it tackles the grueling work of large-scale resource gathering for you. I created this mod because I couldn't really find any…
Official listing
- Modrinth page
- modrinth.com/mod/lethys-quarry
- Owner
- lethargos
- Published
- 2026-03-26
- Updated on Modrinth
- 2026-03-27
- Facts verified
- 2026-10-15