To me, the test of a tag’s worthiness is whether or not you can imagine using it.
So, why would someone use the
Well, if I’m building a world for an RPG system (whether it be an existing one or for creating a system to go with the world), would searching for all questions tagged
[RPG] be useful to me? I absolutely think it would! That way I can learn about the process, about the particular wrenches that RPGs throw into the system, about issues I didn’t even think to ask.
Might I favorite the tag? Definitely! For one, the same way I wanted to peruse existing questions on the topic, I might want to keep abreast of new thoughts or problems people have run into, and hey, if I’m serious about doing this, I may have some insight to share.
Searching and favoriting are basically the two things that tags enable you to do. This tag is useful for both.
But! Be careful about usage
The RPG tag is only useful, as described above, if it is used for questions that are distinctly and uniquely about RPGs. As in, the things that RPGs, in particular, affect and change and make issues when they might not be otherwise.
If someone tags their question
[RPG] just because the world they’re building happens to be for an RPG, but that fact doesn’t affect the question in any special way, that tag should be removed. It might be useful information, I encourage question-askers to include it in their questions, but the tag should only be for questions that come up because of the world’s use in an RPG.
The existing usage is good
There is only one question, as of this writing, that uses
This is exactly the kind of thing that
[RPG] makes a good choice for: the gameplay of a roguelike requires certain truths about the world, truths which are, on their face, very odd and quite different from how things generally work in the real world. But if you want to make a roguelike, you have to keep these tropes for the sake of the gameplay. This is a very valid question, and it is directly influenced by considerations of the setting’s use in a game.