Let Them Come is an upcoming 2D shooter that pits you and a powerful turret against overwhelming hordes of alien monstrosities.
Creeping, crawling, flying creatures are charging at your position and relentless firepower is the only defense against them. You'll need to unleash a storm of lead to hold back the waves.
These alien foes are quite diverse, each with different attributes and appearances; you'll even need to face massive bosses. When your turret isn't enough, an arsenal of grenades, blades, and other secondary weapons can even the odds.
While Let Them Come seems relatively simple gameplay-wise, its visual aesthetic definitely stands out. Dynamic lighting illuminates dark corridors with muzzle flashs and explosions. Blood and alien viscera coat the walls and drip from the ceilings.
Let Them Come will be releasing in early 2016 for iPad, iPhone, and Android devices. A PS Vita version is also possible.
You can find more details on the game here.