I've finally found how to change keyboard used keys.
As it's not really intuitive, you need to come back to the nexus, and then you have acces to options.
It is defined there.
Avoid the killing moon card in your deck. It's a cool card however, on the long term it' just make the computer hangs as the number unit on the field keep increasing.
Great game, however stronger ennemies should be a plus.
Finished all scenariis without a crash. Just need to upgrade infantry to tiers 2 at the begining and that all. Keep your fort as little as possible and that all.
Seems there's a bug when you kill an ennemy with a gem at the last moment. The gems isn't anymore on the screen, you haven't loose it, it doesn't reapear after the right time and the best, ennemy are not interested anymore by it. It help me pass level 13 and have an excellent mark on another level
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