What are the oldest and newest games we're allowed to discuss on /vr/?
Pinball's allowed, so we can go back at least to the 1930s.
>newest games we're allowed to discuss on /vr/?
That would probably be homebrew/romhacks for /vr/ consoles. Unless you are talking about official releases. The last PSX game came out in 2006(according to wikipedia), the last N64 game in 2002, and the last Dreamcast games came out around 2004-2005. Since the GBC was discontinued in 2003 since the GBA was already on the scene, I figure the last game made for the GBC was somewhere around that time period as well.
There's no limit to how far back you can go in theory.
I just don't know how active a thread about ancient barely electric or mechanical games.