I really love how "I was a teenage #Exocolonist " promotes #community engagement through its #gameDesign :
The main game mechanic is a simple card challenge, adding enough points to beat a threshold.
Where many players are naturally inclined to start developing characters attributes, spending time learning, exercising, etc - it's not what gets you cards.
Forming memories with your community members does.
I find that one of the most #solarpunk usages of emergent narrative in game mechanics :)