The difference is that SheepShaver targets newer PowerPC-based systems, while Basilisk II targets Motorola 68000 System 7-era systems.
They share the same developers, the same configuration program, and even the same source code repository. SheepShaver and Basilisk II are two very related Macintosh emulators. I'm writing this because the state of Macintosh emulation needs serious improvement, preferably before every working classic Mac dies out. Writing an emulator is a laborious, thankless job, and I'm not writing this to be mean. It should also be noted that I haven't talked with any of the developers of these emulators, and I mean no disrespect when writing any of these criticisms. Let's go through all the Macintosh emulators I'm aware of. Unfortunately, classic Macintosh emulation is pretty pitiful. It pioneered many conventions of the graphical user interface, it introduced the mouse to the mainstream, and the operating system was a marvel of its time. The original Macintosh platform, released in 1984 and discontinued in 2001, was nothing short of iconic. Published The Abysmal State of Macintosh Emulation Home About Articles Doodles Projects Links The Abysmal State of Macintosh Emulation The Abysmal State of Macintosh Emulation - Articles - InvisibleUp