Geolith

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About

Geolith is ranked #1 of 15 in neo geo emulators on Inferse. It runs on Linux, macOS, Windows.

Compared on neo geo emulators

AES emulation: Yesgitlab.com
MVS emulation: Yesgitlab.com
Neo Geo CD support: Yesgitlab.com
Supported platforms: Linux, macOS, BSD, Windowsgitlab.com

Facts

What it does: Geolith is a highly accurate emulator for the Neo Geo AES, MVS, CD, and CDZ.gitlab.com · 29 Sept 2026
Game formats: Cartridge systems support TerraOnion .NEO files, while CD systems support .bin/.cue and optionally .chd disc images.gitlab.com · 29 Sept 2026
BIOS requirement: BIOS files from a recent MAME set are required, with the required archives varying by system.gitlab.com · 29 Sept 2026
Compatibility: The README states Geolith is compatible with all commercially released Neo Geo AES, MVS, and CD games.gitlab.com · 29 Sept 2026
Input devices: Supported inputs include Neo Geo joysticks, the Mahjong Controller, a four-player extension board, V-Liner, and the Irritating Maze trackball.gitlab.com · 29 Sept 2026
System settings: Settings allow selection of AES, MVS, or Universe BIOS mode, CD system, region, free play, memory card options, palette, and aspect ratio.gitlab.com · 29 Sept 2026
Accuracy: The emulator synchronizes its CPUs with video and sound components, while video event timing is described as best effort and cycle-accurate rendering remains a longer-term goal.gitlab.com · 29 Sept 2026
Known limits: Dedicated JAMMA PCB systems and PAL mode are not supported, and an early Stakes Winner prototype cannot currently be emulated due to missing data.gitlab.com · 29 Sept 2026
Build platforms: The project README gives build instructions for Linux, macOS, BSD, and Windows using MSYS2.gitlab.com · 29 Sept 2026
API integration: Geolith is written for The Jolly Good API and requires that API's header files to compile.gitlab.com · 29 Sept 2026
License: The README identifies Geolith as BSD-3-Clause licensed.gitlab.com · 29 Sept 2026
Latest changelog entry: Version 0.4.2 lists a fix for an LSPC state leak when switching between CD and cartridge games and support for The Jolly Good API 2.0.0.gitlab.com · 29 Sept 2026
Project purpose: Jolly Good Emulation describes itself as a preservation-oriented emulation project focused on reusability, simplicity, and readable code.jgemu.gitlab.io · 29 Sept 2026
Maintainer: The README credits Rupert Carmichael with Geolith copyright from 2022 through 2026.gitlab.com · 29 Sept 2026
Purpose: Geolith is a highly accurate emulator for the Neo Geo AES, MVS, CD, and CDZ.gitlab.com · 30 Sept 2026
Cartridge format: Cartridge systems support TerraOnion’s .NEO file format only.gitlab.com · 30 Sept 2026
Disc formats: CD systems support .bin/.cue and, optionally, .chd disc images.gitlab.com · 30 Sept 2026
BIOS requirement: BIOS files from a recent MAME set are required.gitlab.com · 30 Sept 2026
Input devices: Supported input devices include Neo Geo joysticks, the Mahjong controller, a four-player extension board, V-Liner, and the Irritating Maze trackball.gitlab.com · 30 Sept 2026
Compatibility: The project states that Geolith is compatible with 100% of commercially released Neo Geo AES, MVS, and CD libraries.gitlab.com · 30 Sept 2026
Notable limits: Dedicated JAMMA PCB systems and PAL mode are not currently supported, and an early Stakes Winner prototype cannot yet be emulated.gitlab.com · 30 Sept 2026
Emulation detail: The CPUs are emulated at instruction-level granularity and synchronized with each other, the LSPC video system, and YM2610 sound.gitlab.com · 30 Sept 2026
Accuracy caveat: Video events use best-effort timing; the project says games are playable with minor differences from real hardware and no known major bugs.gitlab.com · 30 Sept 2026
Build platforms: The README gives build instructions for Linux, macOS, BSD, and Windows using MSYS2.gitlab.com · 30 Sept 2026
Framework: Geolith was written for The Jolly Good API and can also be used in multi-emulator frameworks or standalone binaries.gitlab.com · 30 Sept 2026
License: The README identifies Geolith as BSD-3-Clause licensed.gitlab.com · 30 Sept 2026
Maker: The README credits Rupert Carmichael and Romain Tisserand for Geolith copyright.gitlab.com · 30 Sept 2026
Project date: The GitLab project page says it was created February 23, 2022.gitlab.com · 30 Sept 2026