If you like platform games and creating things then check it out!
The site lets you make your own platforming levels and lets you share them with your friends just by sending them a link.
As a player you can also compete for speed-run trophies for stages that have already been made by other people.
EcoCity Now! came from the idea of creating social media games that actually taught you how to farm or kept you up to date with the movement.
Do things people are doing Right Now! to upcycle existing environments into ecocities and ecovillages.