What's the longest you have been in a fandom? I either lose interest or the fandom dies/rebirths after 6-12 months.
Hmm...so with Choices, I played the game for the entire 3 years it's been out, but I only interacted with the fandom and had a fandom blog for 1 year. I played Pixelberry games in general for 7 years.
I started playing Animal Crossing in 2013, but I haven't touched the game in a while save for briefly every so often, so I would say I played it more intensely for 4 years and I was very active in the fandom for 3 of those years.
I started playing Fire Emblem 4 years ago and I still play intensely every day, but I only interacted with the fandom more for 2-3 of those years.
I'd been playing Pokemon since I came to America, but I stopped a few years back. That's probably the longest game I continuously played, but I was only really part of the fandom for 3 or 4 of those years, when I watched Let's Plays.
So in terms of gaming time, Pokemon. In terms of fandom participation, either Animal Crossing or Pokemon.
I definitely get what you mean about losing interest or the fandom dying though. I've only been a huge part of two fandoms: Animal Crossing and Choices. The Animal Crossing fandom died because Nintendo likes to release a game like every 4 years and we haven't gotten a series AC game in 7 years, and with Choices I just lost interest.