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King of Fools Overhaul

by officialkingoffools

Built as an early-alpha Fabric addition for Minecraft 1.21.5, King of Fools Overhaul brings in new ores, blocks, items and convenience features, and leaves the base game's mechanics as they are.

FabricClient and serverCC0 1.0 Universal1.21.5

What it does

The first content is tin: a tin ore with a deepslate variant, raw tin blocks, and marble building blocks. New ores and blocks are integrated with crafting, smelting and loot tables, so they work like vanilla materials. The long-term goal is to slowly rebuild the classic Tekkit feel, adding a growing set of tech progression features one update at a time.

The mod adds content only. Nothing is removed from vanilla, and the author describes the project as early alpha, with frequent updates, balance changes and evolving gameplay expected. Future updates are planned to overhaul game progression more seriously, including reworking ore systems and tech trees, though those plans are still uncertain.

Fabric Loader 0.16.9 is the loader version the mod depends on, and it also needs Fabric API at build 0.119.5+1.21.5. Installation covers the server and each player's game. The latest Fabric file is 0.00.04 for 1.21.5, published on 2026-03-04, and the code is released under the CC0 1.0 Universal license, which is not open source.

Key features

  1. Tin ore and deepslate variant

    Tin ore generates in the world with a deepslate variant for deeper layers, providing the first metal in the progression.

  2. Raw tin blocks

    Raw tin can be stored in blocks, and the mod adds marble building blocks alongside them.

  3. Vein mining

    Vein mining breaks connected ore blocks in one action, speeding up mining of ore deposits.

  4. Improved tree felling and leaf decay

    A feller tool option and improved leaf decay change how trees are cut and how leaves disappear after a tree is removed.

Compatibility

Latest build for each game version and loader.

1.21.50.00.04
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Questions

Does the server need the mod?

Yes. A server running it needs every connecting player to have it too.

Will the mod change vanilla gameplay?

No. The author states that nothing is removed from vanilla and that only additions and improvements are made, though early alpha updates may change balance.

What the author says

What the project does: King of Fools Overhaul is a Fabric mod for Minecraft 1.21.5 that adds new blocks, items, and quality-of-life features. Currently, it introduces tin ore (with deepslate variant), marble and its building blocks, vein mining, tree feller, and improved leaf decay. All new ores and blocks are fully…
officialkingoffools, on the Modrinth page

Official listing

Owner
officialkingoffools
Published
2026-02-12
Updated on Modrinth
2026-03-04
Facts verified
2026-10-15
Open on ModrinthCompare