Guys, everything is beautifully described above, but finding 30 (or at least 10) crystals in the first week is not always possible... besides, you need 20 wood for Ogres, a lot of stone for everyone else, and money, of course... all this implies extraordinary luck for the player – and with this
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I'll continue:-)
...with this luck, you can play as anyone – if you're lucky, then you're lucky!