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Welcome to The Official Site of the MAME Development Team

What is MAME

MAME originally stood for Multiple Arcade Machine Emulator.

MAME's purpose is to preserve decades of software history. As electronic technology continues to rush forward, MAME prevents this important "vintage" software from being lost and forgotten. This is achieved by documenting the hardware and how it functions. The source code to MAME serves as this documentation. The fact that the software is usable serves primarily to validate the accuracy of the documentation (how else can you prove that you have recreated the hardware faithfully?). Over time, MAME absorbed the sister-project MESS (Multi Emulator Super System), so MAME now documents a wide variety of (mostly vintage) computers, video game consoles and calculators, in addition to the arcade video games that were its initial focus.

License

The MAME project as a whole is distributed under the terms of the GNU General Public License, 2 (GPL-2.0), since it contains code made available under multiple GPL-compatible licenses. A great majority of files (over 90% including core files) are under the BSD-3-Clause License and we would encourage new contributors to distribute files under this license.
Please note that MAME is a registered trademark of Gregory Ember, and permission is required to use the "MAME" name, logo or wordmark.

Attention for all derivative builds

04 Mar 2016

Please be aware that only files distributed by Mamedev (those available via the official GitHub) have been subject to the relicensing efforts.

If you maintain a derivative build please be aware that you will have to gain the correct permission from all contributors for any extra code you have in your build. Code that was distributed under the previous MAME license can not be included or linked to MAME from this point forward without being relicensed, requiring permission from all contributors to that code.

This applies to all derivative builds, including MAMEUI, MESSUI etc. so if you have a derivative build based upon that code you will need to either rewrite from scratch or obtain permission from all contributors to the code in order to relicense.

MAME is now Free and Open Source Software

04 Mar 2016

After 19 years, MAME is now available under an OSI-compliant and FSF-approved license! Many thanks to all of the contributors who helped this to go as smoothly as possible!

We have spent the last 10 months trying to contact all people that contributed to MAME as developers and external contributors and get information about desired license. We had limited choice to 3 that people already had dual-license MAME code with.

As a result, a great majority of files (over 90% including core files) are available under the 3-Clause BSD License but project as a whole is distributed under the terms of the GNU General Public License, version 2 or later (GPL-2.0+), since it contains code made available under multiple GPL-compatible licenses.

If you have contributed to the MAME source code and believe we have not contacted you, please reach out to us at our contact page.

Please note that MAME is a registered trademark of Nicola Salmoria, and permission is required to use the "MAME" name, logo or wordmark.

Back to normal

28 Feb 2016

It is again safe to update by pacman -Syu thanks to MSYS2 team

Breaking change in tool update

26 Feb 2016

In case you have executed pacman -Syu today and updated packages, there were some breaking changes in MSYS2 repository
Please execute next to rollback:

for x64:
pacman -U http://repo.msys2.org/mingw/x86_64/mingw-w64-x86_64-crt-git-5.0.0.4609.566d621-1-any.pkg.tar.xz http://repo.msys2.org/mingw/x86_64/mingw-w64-x86_64-headers-git-5.0.0.4609.566d621-1-any.pkg.tar.xz

for x86:
pacman -U http://repo.msys2.org/mingw/i686/mingw-w64-i686-crt-git-5.0.0.4609.566d621-1-any.pkg.tar.xz http://repo.msys2.org/mingw/i686/mingw-w64-i686-headers-git-5.0.0.4609.566d621-1-any.pkg.tar.xz

MAME 0.171

24 Feb 2016

MAME 0.171 is now available.

Build tools

16 Feb 2016

MSYS2 based tools are now available for download.

Tools updated to version 2016-02-16, if you have some of previous versions please update.

Since way of handling MAME depending updates is now done using pacman package manager we recommend
you to install clean copy of tools.

MAME 0.170

27 Jan 2016

MAME 0.170 is now available.