Click one of your lands that has 2 or more dice (gold border), then a neighboring enemy land (dashed border).
Both lands roll every die they hold. Higher total wins; a tie keeps the defender.
If the attacker loses, that land is left with 1 die. If they win, all but 1 die move onto the taken land.
End turn for bonus dice equal to your largest connected group of lands (max 8 per land). Leftover dice go to a reserve.
Take every land to win. The toplist ranks fewest of your turns.