ethosAROIDSfx
ethosAROIDSfx is a new version of the classic shoot' em up game. Target and destroy the rocks as they are coming straight at you. Be careful of enemy flying saucers and take full advantage of your shields and guns as the levels gets progressively more challenging for your reflexes and your tactics. ... The game is created on the new ethsoBASIC platform that allows you to make games and cool programs within hours. ... Can you make it? ... ethosAROIDSfx uses the DirectX technology to present realistic 3D graphics for the battle against the enemy and the falling debris.
http://www.ethosbasic.com/Uploads/eAfx_setup.exe - 1Mb - Download - Screenshot

Mutant Storm
For shoot em up fans out there, this game is for you! Set over 89 arenas, all rendered in state of the art graphics, this really is old school gameplay bought right up to date. The stunning award winning action is rendered using the very latest 3D technology, unlike anything else you'll play. ... Awards:- PCgamer Game of Distinction GameTunnel Game of the Year Nominated for the Edinburgh Games Festival Game of the Year. ... Try and compete with our champions! ... Online highscore tables. ... Play custom mission packs created by players from all over the world.
http://www.pompomgames.com/files/setup_mutantstorm_demo.exe - 8Mb - Download - Screenshot

DXGame Engine
The DXGame Engine is a 2D game engine for Visual Basic that allows even novice programmers to quickly get a project up and running. Features include easy sprite movement, explosions, particle engine, tilemaps, alpha, rotation, scaling, and more! Create anything from simple point and click games...
http://dxgame.com/download/dxgamezip.zip - 3Mb - Download - Screenshot

Alien War - Web Page Edition
Alien War is an arcade style shoot-em up game. A freeware java game which you may play here or freely add to your own web pages. Full instructions for adding to your own web pages are included.
http://www.jpowered.com/free_java_game/alienwar/AlienWar.zip - 248Kb - Download - Screenshot

Frenesia
If you like intense arcade action, and you're an excellent shmup player, Frenesia just might be for you. I'm not going to lie. You HAVE to be really good. Are you really good? Remember: THINKING you're good is NOT the same as BEING good. Frenesia is a fun and addictive retro arcade Shoot em Up... Slalom with your ship, collect bonuses, shoot aliens, dance around your room (or whatever you do) and send your adrenaline levels to the sky. ... You're on your own. ... Ready? ... Musical Note: Like the music??
http://www.macgamesandmore.com/games/frenesiasetup.exe - 7Mb - Download - Screenshot

Bad Toys 3D
Bad Toys 3D is a 3D first-person shoot-'em-up that has funny graphics and sounds. There are 25 levels of play. You explore rooms and open doors with your mouse or the keyboard, choosing weapons and collecting ammunition as you go. Shoot the funny little bad guys when you see them, but remember... Sound-card support is provided. ... The shareware version includes 3 levels. ... You won't find DOOM here, but Bad Toys 3D is entertaining. ... Games can be easily loaded and saved in progress.
http://www.tibo.cz/archive/bt3dsetup.exe - 2Mb - Download - Screenshot

OnTarget
OnTarget is a very addictive shoot-em-up game played over a rugged terrain under a beautiful moon-lit star-filled night sky. Two people can play each other at the keyboard, or the computer will give you the fight of your life as your opponent! Formerly under contract with Villa Crespo Software... Called `The perfect 10-minute break', OnTarget has just the right mix of fun and learning that makes it a game enjoyed by children from 8 to 80! ... Oh, and watch out for the meteor showers! ... Between shots, enjoy watching the lightning storms crashing about the playing field.
http://www.radsoftware.org/evals/rad-ot.exe - 1Mb - Download - Screenshot

Marbles1
Marbles v2. 1 (ASP) - Puzzle game from DynoTech Software. Stack colored marbles in matching cups. Enjoy some of your favorite classical background music. Hidden levels, awesome sounds, rock drills, steel marbles, rocks, bombs, and assorted gadgets await you. ... Marbles is a pleasant alternative to today's fast-paced shoot-'em-up games. ... Enjoy a fun game of Marbles. ... - Minimum Requirement: 486+; 4MB RAM; Any version of Windows; 256-color SVGA; Sound Card - dynotech@msn. ... dynotech. ... com - $19.
http://www.dynotech.com/FILES/marble21.zip - 986Kb - Download - Screenshot

GUNNER2
GUNNER2 may be a household name for you or a complete enigma. It all depends on whether you are a hardcore fan of indie-produced 3D shooters. If you are looking for an original non-mainstream 3D shooter software, Warlock Studio is your game developer and Gunner II is your primary source of... The game is divided into tree different episodes - World War II style Episode I one, with old fashioned crafts and weapons, Episode II with modern crafts and weapons, and futuristic Episode III with UFOs and plasma weapons.
http://www.warlockstudio.com/download/gunner2_setup.exe - 6Mb - Download - Screenshot

RetroBlast
Fast action retro vector style shoot-em-up in the style of Robotron meets Geometry Wars, with plenty of non stop excitement spread out over 100 levels. Several blasts from the past challenge stages where you can get bonus points and power ups. Very easy to use mouse controlled game play, online... Works great even on lower end computers.
http://jgofiles.com/download/retroblast.exe - 3Mb - Download - Screenshot