I found this to be quite realxing and fun. Specially once I unlocked the helpers, even if they aren't as effective as the player for collecting grass it's just pleasing to watch them run back and forth from the tombstones.
I was a little lost at start, but it was part of the fun to get to know the game, as an exploration mechanic.
It was little bit slow on the old laptop I've played at, it might just be how ancient the machine is though.