Really Big Sky Alternatives

Star Defender 4 is an Arcade, Action, Vertical-scroll, Shoot ‘em up, and Single-player video game created by Awem.

Galaga is a 1981 superb Shoot ‘em up, Action, Single-player, and Arcade video game created by Bandai Namco Studios Inc.

Cold Space is a 3D, Space, Shoot ‘em-up and Single-player video game in which the player can take on the role of a protagonist who controls a different spaceship and starts his epic adventure against the alien force.

RayStorm is an Amazing Shoot ‘em-up, Co-op, Single and Multiplayer video game created by Taito Corporation.

Raiden is an Arcade, Scrolling-Shooter, Single and Multiplayer video game developed by Seibu Kaihatsu.

PowerSteering Project Portfolio Management Software enables powerful, scalable and uniquely flexible top-down program and portfolio management.

Waves is a Fast-paced, Action, Shoot ‘em-up, Top-down and Single-player video game developed and published by Squid In A Box Ltd.

Gradius is a 1984 Arcade, Horizontally-Scroll, Single-player, and Shoot ‘em up video game developed and published by Konami.

Phoenix HD is a Shoot-em-up video game by Fire Games.

Chicken Invaders is a 1999 Action, Arcade, Shoot ‘em up, Single-player and Multiplayer video game series developed and published by InterAction Studios.

Castle Shikigami 2 is a Shoot ‘em-up, Single and Multiplayer video game created by Alfa System and published by XS Games.

Galcon is an Action Strategy, Single and Online Multiplayer video game developed and published by Hassey Enterprises Inc.

Einhänder is an Adventure-based, Side-Scrolling, Shooter and Single-player video game created and published by Square.