IDEAS Workshop

Minecraft 26.3 / Fabric / Java 25. Fabric API 0.162.0+26.3 is required. Fixes startup with other mods that add slabs: IDEAS now preserves its intended 141-material mixed-slab catalogue instead of including unrelated slabs and rejecting the enlarged list. Existing mixed-slab material indices are retained. The exact archive passed its native client model and woodcutter checks. A combined installation with GrandWorkshop Core, Companions, Cultivation, Hearthworks, Passageways, Signalworks, Praseodymium and the corrective Carry & Quarry 26.3 build passed 2,076 model checks, world/menu startup and a separate 282-case mixed-slab save/load/material-drop audit with all three custom dimensions. Full cross-mod feature coverage is not established by these checks. Use GrandWorkshop Core with the five expansions; the Complete bundle already includes them. Matching source, bundled dependency sources and license files: [download the matching 26.3.1 source ZIP](https://github.com/tjtjklra529/mcmods/releases/download/ideas-26.3-source-2026-10-11/ideas-0.0.1.4.8-port.26.3.1-source.zip). Source SHA-256: fc1886c75ca9d0cf6e4c401cefce5b98a0ac1de392e14da8a6f68a0288c41c6d.