yup DLC (which I'm still waiting for a discount - might be waiting forever though). It has a new resource called meld, which unlocks mechs and gene augmentations, plus a bunch of other stuff.

But the Real reason is that there's a Mod call Long War that makes it super interesting. Bigger, better enemies, many tweaks to weapons and grenades. It's practically another expansion pack

http://www.nexusmods.com/xcom/mods/88/

I've heard that Enemy Unknown has it, but couldn't find it still

Pretty similar to Supreme Commander, haven't played Dawn of War. I find the gameplay in StarCraft much faster than Supreme Commander, but that might just be me. I tend to play that much slower, gather larger armies like I did in StarCraft.

Haha, that's exactly what I was like when I started playing Civilization Revolution. They're too addicting xD

Oh! Thank you for the link! To be honest, I never really thought to search for it. Thank you again.

Yup, C&C Red Alert 1, 2 and 3.
The first Red Alert is about Einstein inventing a time machine, and going back to kill Hitler. Which allowed Soviet to conquer Europe, as there was no Third Reich to act as a "buffer". Then the US and its allies counterinvade Europe and it turns into a tug of war.
Then Red Alert 2 is about a blitzkrieg invasion of the US by Soviet after a Soviet psychic detonates all of the US nuclear weapons. So, kinda over the top.

Yep, TA is the spiritual father of SupCom. In TA, you have this streaming economy but the scale is less larger (Because in 1997, we didn't have powerful computer, hehe) and you can have 200 units at the same time (IIRC). But it is set in the far future and the two faction are really varied thought you have only one experimental type unit, the Krogoth.
Still, it is a really good game that laid the foundations for many RTS games. If you can, you should really give it a try. And don't forget both expansions, especially Core Contingency. ;)

It has been a long time since I played it. As far as I remember you get resources by capturing critical points and building power plants. Campaign is pretty explanatory and easy. BTW, if you playuthe skirmish for the first time, the game asks you to play a small tutorial. Maybe, you skipped that tutorial.

Unfortunately just on Origin.

I'm playing on the 2nd highest but the AI doesn't get stronger, they only get more boni like additional settlers on start of the game.

Your PC makes me sad :<

Kingdoms is different game, medieval fantasy RTS. Same developer, but lower quality.

It features many games, I started with Tiberian Sun in 1999 and stopped after Generals. In between was Red Alert 2.
I won Red Alert 3 - Uprising though here on SG and I'm going to try that one soon, hope it will be as awesome as the games I mentioned here, although I doubt it :P

Occasionally I still play Generals with friends on LAN :)

Red Alert is awesome, but Age of Empires is so much nostalgia for me, hard to pick a favorite, lololooooo yoyoyo

View attached image.