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Hiding explored territory after building a structure in "Inferno" and "Necropolis" castles doesn't work. Also, "flight" and "teleport" seem to work incorrectly compared to the original game.
Teleportation is only possible to open, "explored" territory.
After a certain time while playing on a tablet: the game freezes.
Waking up from sleep requires sliding the screen panel down.
Maybe this only happens to me!