Space Defense Game Online - Play Free Fun Tower Defense Games
You and your space troop have a tough mission to defend Earth from an alien invasion in this epic space war. You need to build your towers strategically to save the Earth. Another challenge is asteroids, you need to dodge the asteroids while at the same time facing enemies. Face a wide variety of enemies and powerful bosses. Will you be able to guide your troops to victory? Have fun!
11,427 play times
How to Play Space Defense Game
Use your mouse or tap to drag and drop turret or upgrade. Test your reflexes by facing a bullet hell that gets faster and faster each stage. Buy allies to help you in this frantic war. Collect power-ups to help you survive. Accumulate points to upgrade your spaceship. Survive for a time limit to unlock new levels.
What is Space?
Space is the boundless three dimensional extent in which objects exist and events occur and have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as space time. In mathematics, space is examined with different numbers of dimensions and with different underlying structures. The classic concept of space is considered to be of fundamental importance to an understanding of the physical universe. However, disagreement continues between philosophers over whether Space is itself an entity, a relationship between entities, or part of a conceptual framework.
What is an Alien - Extraterrestrial life
An alien is defined as life that does not originate from Earth. It is often also referred to as alien life, or simply aliens (or space aliens, to differentiate from other definitions of alien or aliens). These hypothetical forms of life range from simple bacteria-like organisms to beings far more complex than humans.