Basilisk II

Basilisk II is an open source emulator which emulates Macintosh computers based on Motorola 68k processors. The software is cross-platform and can be used on a variety of operating systems. It has become useful for Mac OS X users since the Classic environment was discontinued since Mac OS X 10.5.

History
Alpha versions were available from January 1999 with the first non-alpha release in October of the same year. The latest version of Mac OS that can be run within Basilisk II is Mac OS 8.1, the last 680x0-compatible version. Newer versions are incompatible because they require a PowerPC-based processor, which Basilisk II does not emulate. SheepShaver is an alternative that emulates PowerPC-based systems that run classic Mac OS.

Ports of Basilisk II exist for multiple computing platforms, including AmigaOS 4, BeOS, Linux, Mac OS X, MorphOS, Windows NT, and mobile devices such as the PlayStation Portable.

Released under the terms of the GNU General Public License, Basilisk II is freeware, and its source code is available on GitHub.