Protect the castle from invasion of the giants. Build various types of towers on land and air then get ready for the gigantic battle! It takes quite a while to finish loading.
In year 2222, people invented a portal. In year 2281, the first habitable planet is found. Its colonization is made through portals and it turns out that humans are not the only sentient race in the universe..
Set of viruses have united to attack a hospital. They want to infect all people inside like ebola virus. Build defensive medicine towers and stop virus attack at all costs!