Revenge of the Titans [Steam Gift/Region Free]

First they came from heaven, and we repelled their attacks with spacecraft hired on a limited budget! Now they are back, and they are sending their ground troops to destroy our bases - thirty-ton monsters with burning eyes and slobbering jaws! And we still have no money!
Quickly build defensive positions using blaster turrets, upgrades, tiny battle drones, barricades, mines, slowing down networks, while getting the necessary funds, extracting nearby resources, while the Titans tirelessly march to your base. Explore new technologies and buildings with which you will defend bases throughout the solar system, starting from Earth and ending with the attack on Titan. This is the ultimate mix of real-time strategy and tower defense.
Key Features:
50 campaign levels taking place on Earth, Moon, Mars, Saturn and Titan itself!
29 buildings and 40 research technologies
Relaxing Endless Game Mode
Hectic Survival mode with an online high score table