Vectra GNU Public License
Vectra is an 2D unique arcade-style game that has very addictive gameplay.
It features 2D game engine using 3D graphics powered by the well-known open source graphics library OpenGL.
In Vectra, there is a cylinder with 8 rails leading towards you. Your shot can only shoot from the top rail, but the cylinder itself may be rotated to choose which rail to shoot on. Various types of cubes and electrospheres would appear and move towards you, and you just press the corresponding key or sometimes key combination to shoot the correct type of lazer. A wrong shot results in a slight penalty, to stop players from spamming keys.
Quick Controls (just in case someone misses the help screen in-game): Left/Right Arrows - Rotate cylinder Z - Red X - Blue C - green