Here is a matching couch and chair that looks like the Nintendo DS and Game Boy Advance (the clamshell version). These would be decorated with cartridge pillows. Game screens can be accomplished by putting screenshots on blankets and draping the blankets on top.
This was inspired by DIY Creators’ Floating Desk, I just went with a Floppy Disk look. The disk holes make for really good grommets! This is a generic design, I think it would look cooler if it had a Commodore 64 or Apple II theme.
You could probably build a PC into the back panel if you wanted, or at the very least incorporate a power strip into it, for tidier cable management.