Well, the 3rd; 'Legacy of Time' exists in versions for 'modern' computers, but that´s old news in this community.
I´ve put together a package with 'Pegasus Prime' using the PowerPC emulator
SheepShaver. It´s possible making self-content[sp?] packages; .sheepvm, which can be started by double-clicking them.
Kind of a emu-on-a-stick. There´s more about it in the foras of Emaculation;
The snag; oh, yes there´s one (at least one), is; this works under OS X and very maybe under Linux.
I´ve only tested the OS X bit. So, yes; there´s a way.
Oh, and
ScummVM is capable of running this, at least following the two latest post of this blog: