Main castle of the ES (minimap):
Playable by 5 players, some oasis, some trees, some stone but a hell of a lot space for buildings the most incredible castles!
Dry-ed water of the ES:
Playable by 3 players, plenty of oasis for everyone and small quantities of iron and stone. But everyone has a height advantage and plenty of space for building strongholds.
Craters of the ES:
Playable by 3 players, each player has oasis and a crater to build walls on for extra height. Easy accessible stone and player one has even some extra troops, great for when you're losing the battle or need more peasants.