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SheepShaver is an Open Source PowerPC Mac OS run-time environment. That is, it enables you to run PowerPC Classic Mac OS software on your computer, even if you are using a different operating system. However, you still need a copy of Mac OS and a PowerMac ROM image to use this program. SheepShaver is distributed under the terms of the GNU General Public License (GPL).

  • SheepShaver runs Mac OS 7.5.2 through Mac OS 9.0.4
  • PowerPC G4 emulation on non-PowerPC platforms, direct execution otherwise
  • Basic but portable JIT engine (x86, x86_64, mips)
  • Copy and paste of text between Mac OS and more...

What's New

Version 2.4:
  • Support for disk images in sparsebundle format.
  • Cursor grabbing toggle (Ctrl-F5).
  • Pressing Ctrl-F5 will make the emulator grab the mouse cursor and keep it inside its window. Especially useful for some games. Again pressing Ctrl-F5 will release the cursor.
  • Window-Fullscreen toggle (Ctrl-Return).
  • Pressing Ctrl-Return will toggle between window mode more...


  • OS X 10.4 or later

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Current Version (2.x)


Downloads 101,046
Version Downloads 101,032
Type Utilities / System
License Free
Date 26 Aug 2012
Platform Intel 64 / OS X / PPC 32 / Intel 32
Price Free
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