... too bad it looks like you intentionally designed it to chase away prospective players.
could you have made the "energy" system more unfriendly?
i've seen item shop games that were worse than this, but not by a great deal. minor differences, really.
its too bad, the game is fun, it looks good, its clever. i find it quite engaging, for the half hour or so i'm able to play for free every day.
as it stands, it kind of feels like farmville. when you run out of gas, the game stops being a game, and starts being a chore.
chores, as you may understand, are not fun.
so, i suggest you take another look at your business model, and decide if you want to have a playerbase, or simply cater to rich kids with too much disposable income, and the newbs who haven't figured out your game's glaring flaw yet.
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an aside. having the undead jump on you and chew you to death without you being able to so much as move is annoying.
you might as well make it so you get insta-gibbed when you enter a specific level. its about as fun as randomly exploding and dying for no apparent reason.
Well, if you don't want to do any "chores", put in some money and get some energy. Expecting to play the game forever for free is pretty selfish. I don't understand why this generation of gamers feels self-entitled to so much. There are no in-game adds. Energy purchases is the ONLY way they can pay for both server costs, and the development cost of the original game.