Like Space Tower Defense, you can create a challenge by protecting something and sending waves of improving opponents at it. This game offers many courses and roads with vantage locations to build your towers.
In Space Tower Defense, you use the mouse and keyboard to defend your fortress in 3D. Use the arrow keys to move the camera around the map to examine its layout. You use the cursor to traverse the tower UI and click on tower icons with the Left Mouse button to build them. You must then place the tower in a green-outlined clear spot. Each stage requires protecting your base until your towers clear the waves.
Your energy to build your first towers is limited when the level starts. After placement, waves will come. The top left corner shows your health and vitality, and the top right shows wave progression. Waves end when the bar fills. If an adversary reaches your red target on the way, you'll lose health. Restart the level if your health decreases to zero.
In Space Tower Defense, you'll need multiple towers to improve coverage. Path junctions and bends are crucial since towers near them damage opponents most often. Prioritize building numbers before upgrading.