I am working on a casual game / experience about Indian festivals as a hobby project. This started as a Diwali night. You can walk through an old neighbourhood down to a river, light 108 oil lamps, set of crackers and send lanterns to a sky that is shared by everyone. It runs in browser without login or any ads.
I have recently added more features like a lamp you keep burning (as per Indian tradition) & a rooftop garden that keeps growoing. I have ideas to add more missions - planning to continue building on this over the year.
Some stats: Around 1,100 players have lit all 108 oil lamps (diyas) & 1600 lanterns released into the sky. Yesterday was the busiest day (because it was Diwali festival)