Engaging, addictive, pretty good graphics, very entertaining, good details, lots to explore. I have been playing the game for 11 days. I'm on lvl 32. I've enjoyed it up to this point, but for the past several days it has been more difficult and quite repetitve to advance or to upgrade different tools because of scarcity of basic resources. Not nearly enough hides to make enough leather for more advanced tools; insufficient oak and sinew. It seems much more geared towards incentivizing in-app purchases. Sure, makes sense, but I would have paid a one time fee to play the game without frustrations.