With the standard, WebAssembly now has first-class support for structs and arrays that the browser engine understands. Here is how it revolutionizes Eaglercraft 1.12: 1. Concurrent, Not Stop-the-World Modern browsers implement WASM GC concurrently. This means the garbage collection runs on a separate thread while your game renders. In the "New" Eaglercraft, when you break a block and the game destroys the block entity, the GC cleans it up without freezing your screen. 2. Reduced Memory Footprint (30-40% Less) In the old JavaScript version, Java objects were "wrapped" in JS objects. This double-wrapper consumed roughly 2x the memory of native Java. In the new WASM GC version, the objects map directly to WASM structs. Early benchmarks show that Eaglercraft 1.12 using WASM GC uses roughly 600MB of RAM where the old version would consume 1.2GB. 3. Type Safety and Optimization Browsers are now optimized to know exactly what a "Minecraft Block" or "Entity" looks like in memory. Because the types are static (defined at compile time), the browser's JIT (Just-In-Time) compiler can generate machine code that is nearly identical to native C++ performance. How to Access the "New" Eaglercraft 1.12 (WASM GC) Because this technology uses the new GC spec, you cannot use an old browser. If you try to load the new WASM GC version on Safari 16 or Chrome 100, it will crash.
The answer has always been . However, until recently, running Eaglercraft felt like walking a tightrope. The browser’s JavaScript engine struggled to manage the massive memory footprint of a full Java-based game. That era is ending. Today, we are dissecting the most significant update to the project: Eaglercraft 1.12 with WASM GC (New) . eaglercraft 112 wasm gc new
By leveraging the browser's native, concurrent garbage collector, the game finally feels like native Java Minecraft running on a low-end PC—except it's running inside your browser tab. The "New" WASM GC standard closes the gap between Web Gaming and Desktop Gaming. With the standard, WebAssembly now has first-class support
It utilizes to convert Java bytecode into JavaScript, allowing the game to run via WebGL for rendering. However, the old JavaScript version had a fatal flaw: Garbage Collection (GC) stuttering . This means the garbage collection runs on a
In JavaScript, garbage collection is "stop-the-world." When the engine decides to clean up memory, it halts your entire application. For a text editor, a 50ms pause is unnoticeable. For a Minecraft player bridging over a lava lake, a 50ms pause means a teleport into the void.