Horizon
Horizon is Minecraft: Java Edition 26.3 rewritten in Rust
...Players can customize their experience with graphics presets, extended render distances, controller support, resource packs, data packs, and native Rust mods. The platform also supports multiplayer servers, LAN connections, and AI agent interactions through a command-line interface and Model Context Protocol (MCP) server. Horizon uses differential testing against the original Minecraft implementation to verify gameplay accuracy.