Sky Clash is a free-to-play MMO RTS that allows players to build their own empire on a floating island in the sky. The game is set in the distant future, where mankind has created a vast number of artificial intelligence, known as "NPCs", to help them in their daily lives. However, in recent years, a growing number of NPC s have been developing their own independent consciousness, and it is now possible to talk to them.

The main objective of the game is to establish your own rule on the island and protect your realm from intruders. To achieve this, you will need to construct various buildings, fortifications, and other defensive structures.