Photosynthesis

The concept behind Photosynthesis is so simple, it's brilliant. Each player places two trees in a hexagonal, game-board meadow. As the sun rotates around the meadow's six edges, your trees soak up sunlight. Unless they're behind and in the shade of other trees. You spend your sunlight like a currency to grow your trees taller; thereby collecting more light and making a longer shadow to cast on your opponents. Or you can spread and grow seeds to make more trees. To gain points, fell your giant trees faster than your friends. That's it.