I know it's not an AIBU and I've also posted on the SN board, but I think this might be really useful for people.
I'm a gamer and I've just read about a guy who has set up a Minecraft server for children with autism to play on. He did it in response to parents concerned about on-line bullying and trolls.
It's currently only available for the PC version and you have to apply to play on it. Here's the link
www.autcraft.com