Mission Medusa 9+

Gameplay:
This is a strategic fortress defense game where you explore small sections of a planet, mine Ochre, and defend your resources from alien creatures. Your goal in each level is to collect a required amount of Ochre. To succeed, build miners to gather Ochre and deploy robot transporters to store it safely. Use defense turrets to protect against the alien Medusa creatures that try to destroy everything in their path. It’s could be challenging, but with persistence, you’ll uncover the winning strategy.

Story:
In the distant future, a meteor storm strikes Earth, unleashing alien parasites that infect humans, paralyzing their nervous systems. Desperate for a cure, humanity launches Mission Medusa, an expedition to the Blue Planet — the origin of the alien parasites. There, they discover Ochre, a mysterious yellow substance that can put the parasites into dormancy, extending the lives of those infected.

However, the mission proves more dangerous than expected. If too much Ochre is removed from the planet, it will awaken a deadly colony of creatures intent on destruction. The only defense against these relentless enemies is a fortress of tower defense turrets. Every night is a fight for survival for the Ochre miners, but without a steady supply of Ochre sent back to Earth, humanity's survival is at risk. Driven by fear and desperation, humans cling to life on this abandoned planet, locked in a struggle to stay alive.