Updated: 6/12/2004
Game-Strategy

Infantry: Supposedly a freeware game (from Sony?) You are one of several infantry types. Hundreds of players can play at once. This looks like an online-only game, you might have to pay for the service. [Report a dead link]
http://infantry.station.sony.com/
Liero , 373kb: A multi-player game like Worms. [Report a dead link]
http://www.mikrobitti.fi
Opentrek: 3d Startrek game. Explore the galaxy, visit planets and starbases, defeat the collective. [Report a dead link]
http://shankel.best.vwh.net/opentrek.html
Solar Vengeance: Build ships and conquer worlds. Develop your own AI. Shareware version limited to 6 of 22 ship types. But you can play solo or online games. [Report a dead link]
http://www.silicmdr.com/solven.htm
[Screenshot]
Solar Wars , 2,190kb: Turn-based strategy to conquer the solar system. Single or multi-player modes. [Report a dead link]
http://members.bellatlantic.net/~jme69/solarwars.htm