These are handmade console arcades I designed which have a mix of genuine hardware and the occasional Raspberry pi or Windows PC because variety is the spice of making things difficult. Plans are available for this cabinet if you want to build one yourself.
Systems in each arcade (from left to right):
Dreamcast: Sega Dreamcast & Genesis;
Neo Geo: PS2 & N64;
PlayStation: PS2;
Nintendo: Raspberry Pi 3;
Xbox: Raspberry Pi 3, Xbox360, & Core i5 Win 10;
Astro City: Sega Genesis (and GameCube eventually)
The CAD plans (CNC machine is recommended) are on my github page:
https://github.com/retrobuiltRyan/TinyCade_13in
You can also buy them (and get all the 3D models and vector files) if you want: https://www.etsy.com/shop/RetroBuiltG...
Buy the modular keyboard switch PCBs: https://www.tindie.com/products/25207/