I only played the game for 2 days (quite intensively), but I'm giving up. The gam heavily depends on rubies. I'm only at level 30, but I don't really have much I can do because I' short of rubies. You can get some small amount of rubies by just playing the game, but that's far from enough. Right now I can't research because I don't have sketch which can be bought using rubies. I can't buy most o the units, cause they were locked, but certainly if you have a lot of rubies they let you smuggle the units in. There are four ruby coves, but you can imagine how hot they is, so only the very few strongest players stand a chance.
Of course there is always a way out: you can certainly spend some real money to buy a lot of rubies.
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