blastem ☆
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Description:
Fast and accurate Genesis emulator
Type: Formula  |  Latest Version: 0.6.2@2  |  Tracked Since: Dec 17, 2025
Links: Homepage  |  formulae.brew.sh
Category: Multimedia
Tags: emulator gaming genesis retro development
Install: brew install blastem
About:
BlastEm is a high-performance Sega Genesis/Mega Drive emulator focused on cycle-accurate hardware simulation. It provides robust debugging tools and efficient emulation suitable for both casual play and development. Its primary value is delivering precise system replication with low system overhead.
Key Features:
  • Cycle-accurate 68k and Z80 CPU emulation
  • Integrated debugger with disassembler and memory viewer
  • Netplay support for multiplayer over IP
  • Highly configurable via a config file
Use Cases:
  • Playing Sega Genesis games with high accuracy
  • Homebrew game development and debugging
  • Speedrunning due to precise emulation logic
Alternatives:
  • Kega Fusion – Kega is Windows-only and easier to use, but BlastEm offers superior accuracy and open-source code.
  • RetroArch (Genesis Plus GX) – RetroArch provides a unified frontend, while BlastEm is a standalone application with a specific focus on 68k cycle accuracy.
Version History
Detected Version Rev Change Commit
Sep 24, 2025 11:20pm 2 VERSION_BUMP 2d5714bc
Oct 13, 2024 4:50pm 2 VERSION_BUMP 310ee270
Nov 13, 2023 1:38pm 2 VERSION_BUMP 7ca32635
Dec 23, 2022 2:21am 2 VERSION_BUMP 8e180b90
Dec 13, 2022 11:11am 2 VERSION_BUMP 67c8faf2
Dec 3, 2022 11:06am 2 VERSION_BUMP 87a2caa5
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