For these discussions I think it would be good to link relevant communities.
I don't think there's a community just for Monkey Island, but there is !adventuregames@lemm.ee
I played the first Monkey Island as a kid with my family and still love these games. Great humor, puzzles, and music. #1 is probably still my favorite, all of them are great except maybe #4 I still need to play (now that it works in ScummVM it's a lot better with modern computers). #2 is probably the hardest game in the series. Tales of Monkey Island is maybe the easiest but still good. Return to Monkey Island was also very good.
I only see it posted on 3 communities, isn't that how the Lemmy cross posting feature is supposed to work? What if someone is unaware of 1 or 2 of these communities, or their instance is defederated from 1 of them?
Lemmy has post deduplication. Are you using an app that doesn't support this? I haven't seen crossposts spamming my feed before, usually it's a pretty good feature, something that Reddit doesn't have.
In fact, Lemmy's post deduplication is a little TOO aggressive https://github.com/LemmyNet/lemmy-ui/issues/2104