Nexus War

 Nexus war is a free to play game on mobile. You are basically building a camp and fight along with The Humans, Izans, Aokus, Theias to fight off invaders on the home planet.

 This game is kind of like Doomsday but has a good interesting story behind it. 

You have to train your troops to help you fight against the invaders. There are 37 different heroes along with survivors that you are going to have to find throughout the maps. 

The survivors help keep the camp running and get the supplies they are needing to survive. You can send out commanders to help you defeat  those around you which is nice that you don’t have to go. Sometimes there is a wait and a time limit for them to get there but other than that this is just like any other casual play mobile game along with a boredom killer.