You are a planet occupator. You installed a planetary core extractor, Nexus. In 15 minutes you have to get the core of this planet and take over it. The monsters on this planet try to drive you off the planet and destroy your Nexus. The monsters that are getting stronger will attack your Nexus. You have to install and upgrade various towers against the monsters and succeed in occupying the planet.

Tower
Reroll and find the tower you want.
Install the tower wherever you want.
Upgrade the tower using experience values and gold.
Destroy the tower you don't need to create space.

Observer
You can use this to fix the tower or attack monsters.
Go around the planet and get gold.

Nexus
Nexus is immovable and is the monster's main target.
When Nexus is damaged, Nexus fixes itself and restores its health after some time.
It takes 15 minutes for Nexus to extract the core of the planet. When the planetary core extracted, the game is cleared.
If Nexus is destroyed, the game is over.

Monsters
As time goes by, stronger monsters come out.
Eliminate monsters and get experience values and gold.
Protect the Tower and Nexus from enemies.

Boss
Boss appears every three minutes.
Bosses have various abilities and cause great damage to Nexus.
Survive the boss.

This game was developed by students of Games, a game development club at Korea Digital Media High School