Invasion of the Body Watchers

The game is my personal remake of the classic xcom ufo defense, xcom apocalipse and the non released xcom alliance but instead of a futuristic setting, the whole premise of the game is a hybrid between the past and the present, where the sci elements are more pointed to the invasion of the body snatchers ( therefore the title homage also ) and the thing from john carpenter mixed with some lovecraftian elements. The plot baseline is that the ecosystem of the human player is beeing invaded by stealth by an unknown force, that the gameplay will reveal, each level adding one more piece of the puzz...