Game Play:

Defend your Space Station at all costs! once it is destroyed... GAME OVER!

Comets and Meteorites constantly explode in Orion's compound during the game, leaving behind Crystal (for repairs) and Mineral (to create/upgrade your buildings and towers) crater fields. Create Crystal and Mineral Transporters via their relative Docks to mine/collect crystal and minerals for return to your docks. Use these resources to create Towers, purchase upgrades and repair your assets.

Use Minerals to upgrade your Space Station to unlock access to additional Towers, Mines and Tower upgrades. Also unloacks access to upgrade Docks to increase crystal/mineral collection value.

The Dracone invaders (ground and air purple vehicles) aim to depleat your crater fields of resources on their way to attacking your defence Towers and Space Station. Place your defenses strategically to slow and eventually stop their progress, save Orion and Earth.

Purchases/Upgrades:

Minerals (blue) are the currency used to purchase Towers and pay for upgrades.

Trade Towers:

You can Trade Towers in play if you need increase your Minerals (blue) or have placed a Tower you no longer require. A damaged Tower must be Repaired before it can be Traded.

Repairs:

Crystals (green) are used to repair Towers, Space Station, Mines, Mineral and Crystal Docks.

Scoring:

You gain points for destroying Dracone invaders. The closer to the compound entry you can destroy the invaders, the more points you will earn. Dracones can not destroy your Towers completely, however they can render them damaged and inactive which loses you valuable points towards your highscore each time they become inactive.

Bonus Points:

You can earn Bonus points at the end of your game based on the number of Crystal/Mineral resources you have left and the SpaceStation Life remaining.

The guide below indicates Defence Tower, Mine, Buildings and Enemy abilities.