In my experience there are two main usages of video-games, with a third used improperly but relatively frequently:
- Used alongside story-identification to find a video game the OP can't remember.
- Used as a media tag, like movies and books, to specify which media the question is focusing specifically on if the main tag covers more than one.
- (Improperly) used when the question is about a video game but the main tag only covers the video game and its related media i.e. half-life.
I don't think we also want the tag to cover story-identification questions where the work isn't a video game but video games play an important role. The tag is a media tag in all the cases, even the improper 3rd case, it's mainly used in so adding a "meta tag" functionality to it would go against its purpose.
It also doesn't add much value to the questions above by having it on there and because it is mainly a media tag it could confuse matters by having two, very different, media tags on the question.
Therefore, I say the video-games tag shouldn't cover questions where works are about video games.
I propose updating the wiki excerpt to the following, or something similar; it's hard to be concise and explain its usages:
Use alongside the [story-identification] tag when trying to identify a specific video game. Also use alongside a work tag to specify you are only asking about the game. Do no use when asking about a video game when the main tag is only about the video game. Questions about playing the game or the mechanics are off-topic here, but may be on topic at Arqade (https://gaming.stackexchange.com/).
Of course I also have to say tags on SFF or a bit of a mess and misused all the time. Tag wikis and their excerpts are even more of a mess. A lot are out of date and a lot of the wikis are plagiarised directly from Wikipedia. The only reason most of the new tags have excerpts is because myself, and sometimes SQB, go through the new tags page occasionally and create them. So it's hardly a surprise that a) the excerpt is a bit out of date and b) the tags aren't being used correctly.