Bear in mind you have made this post on just one instance, Lemmy.world, if they aren’t keen on you doing this for whatever reason there are many more instances around that could be more accommodating.

If you have people that are technically literate you could even spin up your own instance just for your community to register their accounts to. They would still be able to interact with the wider fediverse in the same manner if they wanted to post outside of your roleplays too!