Get the classic SkyFactory 1 (SkyFactory 1.3.2, Minecraft 1.6.4 + Forge) running on a modern machine. It's an old pack and today's launchers mishandle its LWJGL native libraries, so it usually crashes ...
Minecraft: Java Edition 26.3, rewritten in Rust. Same worlds, same rules, same terrain, checked against the Java game by more than 300 differential harnesses. Get the Horizon Offline Launcher directly ...