AstroMenace is a hardcore scroll-shooter where brave space warriors may find a great opportunity to hone their combat skills. Gather money during the battle to spend them on turning your spaceship into an ultimate weapon of mass destruction and give hell to swarms of adversaries. Enjoy the wonderfully crafted 3d graphics and high-quality special effects along with a detailed difficulty adjustment and a handy interface of AstroMenace.

For windows, linux, mac and open source.

Link to Official Site (sourceforge)

Link to Official Site

AstroMenace is open source, if you like the game you can Support and furthering AstroMenace development with a donation at the official site.

Features:

-22 playable ships with unique characteristics.
-19 unique weapons with the easy drag-and-drop weapon mount mode.
-15 missions with 100+ unique enemies and 40+ space objects.
-Simulative and arcade ship control mode.
-Flexible difficulty control.