A short, single player puzzle where you are given a randomly-generated playing field composed of tiles representing various landscape features (forest, grassland, village, corn field), two mountains (source of the rivers) and an ocean tile (end of the rivers). Your goal is to place various tiles from the draw pile in such a way that the rivers which will be generated by the mountains are directed to the ocean (rivers can't cross forest tiles) without flooding the entire landscape. You also need to make sure that the villages aren't isolated from all others, and that each village has its own corn field. There is currently no sound. The game is still in development and it's a fun little concept. It's a short game to play during breaks or down time, as each round only takes a minute or so to play. 

I've currently rated it below average because the rules and scoring are very opaque. It took a fair amount of trial-and-error, as well as reading the comments on the game's page, to get the hang of why I kept losing villages (if there aren't enough corn fields for all neighboring villages then all the villages starve rather than just the surplus, diagonals don't count when determining whether villages have access to another or to a corn field). 

I think it would be nice to have a button to press to see the rules in-game if you wanted, and "undo" and/or "retry game" button so I can try the same setup more than once.