Circle war: 2D shooter

2D shooter on a planet invaded by evil. Free its inhabitants, help them chase away the contagion!

Features:
-Diverse weaponry: from assault rifles and shotguns to grenade launchers and plasmogons
-Realistic physics
-Local multiplayer is available in any game mode, you can enable PvP: find out if your friend plays better?
-Open world with no action limitations
-Lots of items in the store: weapons, skins, grenades, bombs, minions
-Piecemeal destructible vehicles, find the weaknesses of drones and turrets!
-Some weapons have penetration: eliminate your enemies through thin walls!

So, can you become the best player in this invaded world?