2D shoot-them-up for Windows with a cactus that sprays tons of thorns.

Arcade shooter for Windows with multiple power-ups that combine for more effective weapons.

Describes first person shooter for Windows with textures, light maps, models, sound, and level editor.

Side scrolling shooter for Windows or Linux. (Open Source, GPL)

3D game in which 31 countries decide to reverse the information age by removing technology from all but a few vital sectors.

Windows shooter in which the goal is to hit the moving targets with your mouse. [Open Source]

A shoot 'em up game for Windows. Includes information and downloads.

Download free games and minigames.

Scrolling spaceship shooter for Windows. Game description and backstory, with links to reviews.

Military shooter for DOS in which you control the main character in real-time.

A shooter for up to eight players for DOS or Windows.

Source code available for Ms Blitzman, Scrabble, and Blitzum. Also has downloads for Deblitzer, Blitzatron, and MMMarbles.

Describes 3D shooter based on the Quake engine, with source, maps, textures, and utlilities. (Open Source, GPL)

Includes news, screen shots, and downloads. Based on Quake II Engine source code.

Clone of the Intellivision game Astrosmash for DOS or Windows in which you shoot aliens from the bottom of the screen. [Open Source]

First-person 3d game for Linux, not much different to Doom and Quake.

Includes two arcade-style clones: Cosmocrafter and Sea Sug Invasion.

2D aircraft shooter for Windows. Includes screen shots.

Online 3D shooter and strategy game allowing up to 64 players per server.

2D 32-bit scrolling shooter for Windows, based on Japanese Science Fiction TV series "Star Fleet." News, screen shots, game background, and discussion forums.