The problem with calling this Asteroids is that there are no asteroids. :)
This reminds me more of an old DOS shareware game called Spacewar (http://www.youtube.com/watch?v=yY5qHe2VadA), which was also multi-player although that game also allowed turning on gravity and warping (I see a comment mentioning warping in this game but I don't see it in the command list.)
This was one of my (and my friends') favorite small games back around 1990.
Edit: It was a DOS game when I played it. It is good to feel like a young person when talking about a game that I played 22 years ago.
Uh... Spacewar was an old PDP-1 game. It predates DOS by a little bit. And the microprocessor. And DRAM. And raster displays (the output was two analog channels fed to a raw CRT). It was essentially everyone's favorite computer game (everyone who knew what a computer game was) back around 1962.
Only partially related, but there was a fantastic game called Star Control 2 once upon a time. The main single player game was a big long quest, but it also had a 'Melee' mode where you and a friend could go up against each other in Asteroids-style space combat- putting different types of ships with different weapons against each other. So much fun was had.
Check out http://www.mmospacewar.com/. I made a few changes to mmoasteroids.com to make it behave more like the DOS version of Spacewar. Unfortunately, Firebase isn't available for another 1 day 18 hours 18 minutes and 10 seconds yet (http://www.firebase.com), so anyone who plays this will share the world and scoreboard with MMO Asteroids for now. (Hopefully this doesn't present a problem to the guy who created MMOAsteroids; there are already plenty of cheaters on there anyway.)
New features: warp (press 'z') and instead of instant death you have an energy which gets depleted by using thrust, colliding with other ships/bullets, and warping.
This reminds me more of an old DOS shareware game called Spacewar (http://www.youtube.com/watch?v=yY5qHe2VadA), which was also multi-player although that game also allowed turning on gravity and warping (I see a comment mentioning warping in this game but I don't see it in the command list.)
This was one of my (and my friends') favorite small games back around 1990.
Edit: It was a DOS game when I played it. It is good to feel like a young person when talking about a game that I played 22 years ago.