If you can't open this game on Device with Android 8.0 or up
you can try download the game from here
http://oss-hongkong.oss-cn-hongkong.aliyuncs.com/dark_fire

Aliens from space are attacking the Earth, please help us
Four hero are getting ready to battle
Many firearms are ready to be equipped
Many Skills and Abilities are waiting to work
We need more hero to join us to fight against the Aliens.
Hurry up!