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joamag

boytacean

joamag

A Game Boy emulator written in Rust, supporting DMG and CGB, with Web, SDL, and Libretro frontends, featuring audio, serial link, and printer emulation.

0.13.2
Published at
Jul 27, 2026
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Synced at
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rust

Latest release

0.13.2Jul 27, 2026, 11:30 PM
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README

Project Overview

Boytacean is a Game Boy emulator written in Rust, supporting Game Boy (DMG) and Game Boy Color (CGB) emulation. It provides Web, SDL, and Libretro frontends.

Key Features

  • DMG and CGB emulation
  • Multiple frontends: Web, SDL, and Libretro
  • Audio: Accurate APU with optional high-pass audio filter
  • Serial Data Transfer: Link Cable support
  • Game Boy Printer emulation
  • Multiple MBCs: MBC1, MBC2, MBC3, MBC5
  • Save state support: BESS specification for cross-compatibility
  • Cheat support: Game Genie and GameShark codes
  • Variable CPU clock speed
  • Accurate PPU: Passes dmg-acid2 and cgb-acid2 tests

Target Audience

  • Retro gaming enthusiasts
  • Game Boy emulator enthusiasts
  • Rust developers

Quick Start

  1. Web version: boytacean.joao.me
  2. Build the library: cargo build
  3. Build the Web version: use wasm-pack

Core Advantages

  • Written in Rust for memory safety
  • Web, desktop, and Libretro frontends
  • Accurate PPU and audio emulation
  • Open-source and free

System Requirements

  • OS: Cross-platform (Web, SDL, Libretro)
  • Architectures: x86_64, arm64

Release history

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