Here’s a concise review of (sometimes referred to as "Eaglercraft 120" — likely meaning version 1.2, not 120): What Is Eaglercraft 1.2? Eaglercraft is a browser-based port of Minecraft Java Edition (specifically an early release, around Beta 1.7.3 or custom 1.2-style gameplay) that runs entirely on JavaScript/WebGL — no plugins, no downloads, just a web browser.