Games like B17 Billy

Here are some great alternatives to B17 Billy by Asylum Bound Games LLC :
Defense Turret: Fury
Defense Turret: Fury
★3.9
Gunner War - Air combat Sky
Gunner War - Air combat Sky
★3.5
Tail Gun Charlie
Tail Gun Charlie
★4.5
Gun Games Army Assault Shooter
Gun Games Army Assault Shooter
★4.3
Air Force Shooter 3D
Air Force Shooter 3D
★3.7
Last Bunker: 1945
Last Bunker: 1945
★4.2
Air Defense: Airplane Shooting
Air Defense: Airplane Shooting
★4.6
1940 - Arcade Shooting Game
1940 - Arcade Shooting Game
★4.6
Air Defender: Bomber Simulator
Air Defender: Bomber Simulator
★3.7
Leo's Gun Defender
Leo's Gun Defender
★4.3
Wake Island Gunner
Wake Island Gunner
★3.4
Little Commander - WWII TD
Little Commander - WWII TD
★4.2
Galaxy Raiden Fighter - Squadr
Galaxy Raiden Fighter - Squadr
★4.4
Battle Strategy: Tower Defense
Battle Strategy: Tower Defense
★4.4
Sky Defense: War Duty
Sky Defense: War Duty
★4.6
1945 Galaxy Shooter
1945 Galaxy Shooter
★4.7