Yes I love games set in space.

BUT HOW DID YOU NOT MENTION FREESPACE 2??

But seriously, that game is like the holy grail of space sims. (the first one is amazing too it's just that the second is even better, but both are must buys)

And battlezone 1 and 2 also, must buys!

All 4 of these games easily stand the test of time. I'm actually playing through BZ1 right now. It's what... 13 years old now? Still blows 99% of the games released these days out of the water. If you like space strategy games and sims I'm absolutely positive you will love both the Battlezone and Freepspace series. They're all dirt cheap too so get get them... now! (be sure to get the Red Odyssey expansion for BZ1 too)

Oh ya kb/m then. You'd get completely raped using a gamepad against other PC players. Making really rapid snapshots against hunters especially is a key part of the game. I also can't imagine ever pulling off effective hunter wall hopping and 25 dmg pounces without a mouse(you'll see what I mean is when you play it).

Also Starcraft 2 in 1v1 ladder matches... when it's REALLY close and intense and all out war against a great opponent with the battle going back and forth. Really amazing feeling to win.

Operation Flashpoint (the original) back in the day when I would pull off some glorious plan... especially during the spec ops missions in the campaign.

I second what NoAssKicker says though. Don't play it too much or you might get sick of it.

It's got great gameplay but if you do as I did and play it and nothing but for 3 months after you buy it you might have trouble coming back to it later.

You wont have any issues finding a game whatsoever. There's a TON of people playing it.

Oh ya and you'd probably like DoW if you liked CoH.

Get SC2 dude, it's worth the price.

I'd play through SC1+BW first though to be able to enjoy the (utterly fantastic) SP campaign in SC2.

SC2 has by far the best singleplayer campaign I have ever played in a traditional RTS (i.e. not Battlezone lol). The mission design is sooooooo good.

The multiplayer is out of this world too of course. Highly competitive, but thanks to the ladder system you'll always be playing people relatively close to your skill level. Blizzard is also of course renown for constantly releasing balance patches to get the game as close to pitch perfect as possible.

Maybe it sounds like I'm a fanboy but the game deserves it dude. It's got a high price tag but it's one of the few games where I've felt that every bit of that $59.95 was worth it. Just get SC2 man, you can't go wrong.

Other than that the only other really good space RTS games I can think of are the Homeworld games and Battlezone 1 and 2 if you want to call those RTS. BZ1/2 are both really old now but they hold up VERY well to the test of time. I'm actually replaying BZ1 right now. BZ2 got panned by many because it's not quite as amazing as BZ1 but it's still a fantastic game and easily in my top 10 of all time.

*Definitely* get the Battlezone games if you've never played them. You can still find people online occasionally though the SP content is really worth it by itself alone. (quite long campaigns and VERY high quality)

Oh ya and CnC Generals too is good for multiplayer if anyone still plays it in multiplayer. I dunno if that's "sci fi" but it's definitely got some pretty "out there" units.

If you can choose between PC and 360 definitely go PC man.

On top of the advantage of kb/m you also are able to easily get all the custom maps and all that good stuff.

I cant imagine playing it without a keyboard and mouse.