This is actually a suggestion from alexanderpas, from back on Metasuggestion from alexanderpas, from back on Meta. I'm reposting it here as a placeholder, because I think it's actually not too bad of an idea (although it's problematic for those of us big in the indie scene, where there's not so much in the registered IP department).
The way I see the gaming tagging, is the most "natural" tags for example, for gaming, I would say, games per IP (Interlectual Property), per system (if exclusive or applicable), etc... The name of the game should be the least preferable tag in this series.
For non-exact game questions per genre ([rpg], [action-adventure], [shooter])
and some service tags ([spoiler] for example, (to be put in the ignore list)
For example:
- How Many different versions of the PlayStation 3 are there
[sony]
[ps3]
- How do I beat Bowser in Super Mario Galaxy 2
[mario]
[wii]
- Are there any recent old-school Sonic Games
[sega]
[sonic]
[2D]
[side-scolling]
- Should I ignore leveling with Aeris in FFVII
[final-fantasy]
[playstation]
[psn]
[spoiler]