PlayStation 4 emulators
The PlayStation 4 is an eighth-generation console produced by Sony Computer Entertainment in 2013. Notably, it is the first PlayStation console to use the x86 architecture, making it easier to program for than the PlayStation 3 while also having the same architecture as PCs.
There are a few work-in-progress emulators currently being made including GPCS4 which ran its first commercial game called We are Doomed in February 2020 and Spine which is being worked on in private. They are still early in development.
Even though the PS4 does have an x86 CPU like normal PCs, it doesn't mean it'll be easy to emulate as the x86 instruction set is huge. However, nearly all of x86 instructions are well documented (though some other specifics aren't) so the possibility is there. Another thing is that there is currently no documentation on the GPU (a modified Radeon 7970M with disabled stream processors) used in the PS4's APU. While the console has been hacked, efforts are as of now preliminary and not to the point of being able to run backups or pirated games - please don't even ask about PoC emulators until it's hacked. All that said, don't expect any functional PS4 emulators for a very long time, like 10 years.