Overkill

Overkill is a kinda standard space shooting game. It's your spacecraft against a lot of aliens. Shoot them and you can get some upgrades. Overkill can be played in EGA, CGA/VGA and Tandy mode, so you'll always get the graphics that fits to your computer. The graphics, they're good (not the best though) and the gameplay and sounds may be there too. Conclusion, Overkill isn't a great game, there are so much games like this.