Cool.
I have the original version of this game, and I was going to get this game for the Xbox 360, but for $7.49, I may just get the Steam version. I tried the demo on the 360, and it was very, very cool. Same gameplay as the original, but with far superior graphics.
I know this is an Unreal engine based game site, but the Serious Engine may become a player if these guys can get others to use it. I like where Epic has gone with Unreal Engine 3, but ID's Doom 3 (whatever ID Tech they call it) was a disaster for multiplayer. Most Doom 3 based games are just terrible multiplayer games. Laggy and jerky gameplay on all of them. Such a disaster after the Quake 3 engine, which was silky smooth online.
The Serious Engine was OK in co-op online games, and hopefully after serveral years they have improved the online part of this engine.
After all, competition is good and keeps others (hint, hint ID) from getting lazy and stagnant.