Very interesting game that creates pretty unique social interactions.
I also like how the game sort of bleeds into the website with the family tree browser and the completed monuments list. It reminds me of Minecraft servers I used to play on that maps of the world online, but instead of a physical map, the One Hour One Life site has more of a 'social map' I guess. It's an interesting dynamic where the actual experiences you have in the game are very ephemeral (< 1 hour), but a little bit of information about what you did is saved on the web forever.