I would, If what you mean is a Holy Grail War game, more than an Fate fanfiction But a warning. Had done this before in this site Had played this before in other sites It never ends nice D:
It rarely goes beyond than the introduction and first battle And is a death battle, and players don't like their characters to be thrown off the game
It's really hard not to be. Even players who seems to be nice can be sore losers But the main issue always ends being to pass beyond the introduction. Also a question, had you read the novels or just watched the anime? Players who read the novel vs those who just watched the anime have a different concept regarding skills, parameters, noble phantasm, etc.
Yeah, that always seems to be the issue, players that cannot stand getting killed... Or you can't move past the introductory section without losing about half of your players. >.>
@King Arthur Oh, but don't feel discouraged. I've been just listing the difficulties you may find in doing it. Yet if you still feel like, go for it.
@King Arthur Well if you're preparing the game then just post it and all and I'll approve but also don't forget to make a discussion thread. If you're interested there have been three attempts to do a grail war. I can give ya links if ya want to check em for whatever reason but they are pretty easy to find in the archive.