Dave Gnukem

Dave Gnukem is a retro-style 2D scrolling platform shooter similar to, and
inspired by, Duke Nukem 1 (~1991). The source code is cross-platform and open
source. It runs on Windows, Linux, Mac OS X and more. (The original Duke Nukem 1
had 16-color EGA 320x200 graphics; the aim here is 'similar but different'
gameplay and 'look and feel'. It is kind of a parody of the original. Please
note it is not a 'clone', and not a 're-make'.)

Try find the exit, while dodging or shooting monsters.

Default Keys:

    Left/Right: Move left/right
    Ctrl: Jump
    Alt: Shoot
    Up Arrow: Action key (for e.g. opening doors, using teleporters or lifts,
activating the exit, etc.)
    Escape: In-game menu
    7/6: Increase/decrease volume
    Insert: Toggle sounds on/off
    Shift+F6/F7: Dec/Inc speed (framerate)
    Shift+F8/F9: Toggle map and sprite auto-shadows on/off, respectively
    F10 Save screenshot

To open doors, find the correct color key, and press the action key on the
'lock' nearby the door(s).

Power boots allow you to jump higher. The special molecule pickup gives you full
health.