KEELSTONE

A five-versus-five battle arena on floating sky-islands. Pick one of twelve heroes — a windblade duelist, a stormcaller, a kite-riding scout, a cloud-hidden assassin, a druid who grows bridges across the sky — and fight bots or friends across three lanes to break the enemy Keelstone. The sky itself is alive: drift isles swing on their chains every four minutes and reroute the map, a jetstream carries you along the river, open rims fling the unwary home on a gust, and the cloud leviathan Thunderhead wakes to grant a Second Wind.