Plazmoids!
Plazmoids! is an arcade game for Palm OS that combines superb high resolution, 3D-style graphics, sophisticated visual effects, and addictive techno music and sound. But what makes the game unique is its unusual gameplay based on original physics. We are proud to present this breakthrough game... But since you are not alone in this job, get ready to face numerous enemies, each with their own features and behaviour, master several types of weapon, and upgrade your tiny ship to a powerful space fortress.
http://www.palm-games.com/files/plazmoids.zip - 3Mb - Download - Screenshot

Willy In Space 3D
Welcome to the wonderful world of Space. Willy In Space 3D is an amazing 3D arcade puzzle game. It is an Isometric Arcade. 99 different levels to solve! Each requires your full attention, memory skills, fast fingers and a fast mind! Want to try it? The game is perfect for boys and girls of all... Enjoy REAL 3D scenes and professionally animated characters in this puzzle arcade game. ... This game requires some strategy and hand/eye coordination, and features vivid graphics. ... Good fun for all the family.
http://www.teddygames.com/willy.exe - 4Mb - Download - Screenshot

Space Taxi 2
Everyone's favorite yellow cab is back. You might remember the original Space Taxi, which was a popular Commodore 64 title in 1984 when it was first released. This is the first official sequel. It was created by Twilight Games with the help of the original author John F. ... Space Taxi is a retro style arcade game where you pilot your space cab around increasingly difficult levels picking up and delivering a variety of characters including businessmen, aliens, and robots. ... At first it's a simple pickup and delivery, but as the game progresses you'll have to navigate obstacles like...
http://www.twilightgames.com/download/spacetaxi10.exe - 9Mb - Download - Screenshot

Space Man
Space Man is an arcade style game where you try to complete each level before your lives run out. It provides entertainment. For those who enjoy a little more colorful description, please read on: Beware of out of control satellites while you race to save the Universe in this arcade style game. ... The fate of everything rests soley upon your shoulders as you struggle to collect all planet like deceptoids before your own ship is demolished.
http://www.mysoftwarefactory.net/software/SpaceManSetup.exe - 10Mb - Download - Screenshot

Invasion 3D
Invasion 3D is a free multi-platform 3D arcade game, based on OpenGL and SDL and available for Windows and Linux. This fun and addictive game features realistic physics simulation, challenging gameplay, stunning visual effects,multiple weapons, hidden bonuses, and more. ... Invasion 3D was Inspired by Taito's original Space Invaders arcade game from 1978, and is dedicated to the MAME arcade emulator system. ... Create massive destruction and rack up as many points as you can as you blast your way through 20 waves with thousands of aggressive space invaders!
http://www.fascinationsoftware.com/FS/media/Invasion3D.tar.gz - 2Mb - Download - Screenshot

CosmoBlocks
We all love games. That is the fact. Play activity is one of the major parts of human life. Computer is the infinite source of fun and entertainment as it allows making our imagination work for us at its best. Today, fast processors allow creation of extremely realistic game universes while... Enjoy the toughest brick game challenges as you race through space on a fusion powered hyper space ship! ... The game features advanced graphical engine that ensures you actually play bricks aboard of space ship blasting through the myriads of stars and not just dropping pieces into a cup.
http://www.energames.com/download/cosmoblocks.exe - 2Mb - Download - Screenshot

Archibald's TriTris
Archibald's TriTris is an arcade game based on lining up tiles of the same color. Amusing and easy-to-play choice for everyone who wants to try something new. Non-violent arcade game for kids, adults, home or office. You are to line up three or more tiles of the same color horizontally, ... The game ends by filling up the game field in arbitrary column. ... Triplets of the same color are erased, freeing space for the next bar falling down.
http://ArchibaldGames.com/tritris.zip - 2Mb - Download - Screenshot

Arcade Lines
How about a nice game for unwinding while you have a break? Try Arcade Lines - A relaxing, yet highly addictive puzzle game featuring brilliant graphics, optional pulsating music and a great variety of different game modes. It is very easy to learn, but not so easy to master! ... 6 difficulty levels, the time-based and the custom game modes plus various additional game pieces like the two-colored balls, Paint Buckets and propellers add more variety to the game. ... Arcade Lines is played on a board that fills up during game play with a variety of colored pieces.
http://five-plus.com/downloads/arclines.exe?tag=trkc12 - 3Mb - Download - Screenshot

Space Quarry
Space Quarry is an asteroid blaster game for Windows 95-XP. Spin your ship around and blast passing space rocks with missiles before they collide with you. Each new round brings more rocks at an ever increasing pace to challenge your eye/hand coordination. ... Based on the video arcade game from the 70's but with better graphics and sound effects. ... 1 or 2 players, keyboard or joystick control.
http://www.briggsoft.com/download/sq95.exe - 684Kb - Download - Screenshot

Space Alien Invaders
Free arcade style space shooter game for the PC.
http://www.freewareshareware.net/download/sai.exe - 1Mb - Download - Screenshot