Small web game: increstellar.com - tge game is okish, the technical aspect probably on the side of bery naive, but I finished it and player interacted actively, which was incredibly novel experience to me. Ideas I tought were fun were shot down, while the community provided an endless stream of possibilities to improve areas that I never have considered.

For the simple incremental structure it has I got quite the engagement, with a thousand of players and an average session of 20minutes it was far beyond my expectations.

I also got back a ton of knowledge on the topic, which is nice.