@badp My typical thinking on this issue is that you can probably just use the base-game tag and make the version specific issues clear in the question for stuff like a bonus dungeon in a reissue or whatever. You should only really need
game-name-platform for cases where the game is dramatically different in a reissue or alternate release, such as, say, the DS remakes of FF3/4. But I'm not particularly adamant about that threshhold, so feel free to do whatever.