If you want, I can (pick one): 1) draft a concrete PoC plan targeting a specific toolchain (suggest a language/tool), or 2) produce example Rust/AssemblyScript snippets showing how game objects map to Wasm GC structs. Which would you prefer?
Eaglercraft 1.12 with WASM-GC (WebAssembly Garbage Collection) represents a major shift from traditional JavaScript-based browser ports. By using a native binary format that manages memory more efficiently, this version achieves near-native performance for a Java-based game like Minecraft 1.12.2. Overview of Eaglercraft 1.12 WASM-GC
WASM-GC Core: Unlike earlier versions that relied entirely on JavaScript and TeaVM to emulate a Java environment, the WASM-GC version uses WebAssembly's native garbage collection features. This significantly reduces the "stop-the-world" lag often seen in browser-based Java ports.
Performance Gains: Users report approximately 2x performance improvements over standard JavaScript clients. The WASM engine allows the game to run at near-native speeds by executing code closer to the CPU and GPU hardware. eaglercraft 112 wasm gc
Version Specifics: This port is based on Minecraft 1.12.2 and was developed by community members like PeytonPlayz (peyron), rather than the original Eaglercraft creator, Lax1dude. Key Features and Capabilities
Eaglercraft – Minecraft running in a JVM for the web called TeaVM
The Eaglercraft team rebuilt the TeaVM compilation pipeline to target WASM GC + reference types. Key improvements: If you want, I can (pick one): 1)
Eaglercraft 1.12 is an open-source, browser-based port of Minecraft Java Edition 1.12.2. Unlike traditional ports that rely on JavaScript or legacy asm.js, Eaglercraft runs directly in the browser using WebAssembly (WASM). The latest evolution in its runtime incorporates WASM Garbage Collection (WASM GC) — a new proposal that allows WebAssembly modules to manage language-level heap objects more efficiently, bridging the gap between low-level WASM and high-level managed languages like Java.
This write-up explores how Eaglercraft 1.12 implements WASM GC, its performance benefits, and the trade-offs compared to earlier JavaScript-based or manual-memory-managed WASM approaches.
When it works, it is impressive.
Several public Eaglercraft 1.12 servers now ship with the WASM GC build:
Note: Some anti-cheat plugins flag WASM GC builds as modified clients. Use on servers that support Eaglercraft natively.
The Eaglercraft community has created "Uproj" or "Unified Project" forks. These are modified versions of the stable Eaglercraft 1.8.8 engine that backport features from newer versions. Click "Play" – the game downloads ~35 MB