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