Protect Capsule

Human civilization has been invaded by viruses, you must repel enemy attacks

Human civilization has been invaded by viruses, using powerful technology to repel enemy attacks!

Features:

-Classic tower defense game, designed for players who like old games

-Build defensive towers on any open space

-More than 40 unique turrets

-The turret has a variety of branch upgrade routes

-The combination of different turrets will produce a variety of interesting effects