XenonRecomp

[lepidotos]

It's not for PowerPC (yet(, but this seems like a very interesting project to me. It currently depends on amd64 intrinsics, but a similar project, N64Recomp, doesn't, so I wonder if that's a hard cap. Apparently it's already building games for Linux, so DirectX isn't needed... I'd be interested in this because it'd be some of the most intensive games you could theoretically natively run, and it'd just feel neat to play something that was made for IBM + Radeon on IBM + Radeon.

https://github.com/hedge-dev/XenonRecomp

[power9mm]

As for intensive, unreal engine 4 has worked, and so has openxray engine (stalker)
this is pretty interesting though, i mean since xbox360 is ppc already im sure something can be worked out....

[ClassicHasClass]

It probably could be hacked to work on ppc64, though keep in mind that Microsoft VMX128 != AltiVec/VMX (and certainly not VSX) even though there is some overlap.