Recommend titles for a new PC gamer?

I recently went and built myself a new PC (mostly with my close friend's help) and have decided to go and try out some PC games I never tried to see what I've been missing out on. 
Anyone have any recommendations for places to start? I've already gotten:  

• All the Humble Indie Bundle games (I'd bought them before)
• All of Valve's releases
• The original Deus Ex
• Dragon Age Origins (again)
• GTA: San Andreas
• Just Cause 2
• Mafia 2
• Magicka
• Oblivion
• Poker Night at the Inventory
• KotOR
• Fallout 3 and New Vegas (both again)
• GTA IV
• StarCraft II
• Dragon Age 2
• Oblivion
• The Witcher 2

• An Intel 4300 dual core (overclocked to 2.5 GHz)
• An ATI 5770
• An ASUS P5KPL-AM SE
• 4 Gigs of RAM
• 1 TB of space

Well there's about a million games I know I love, but based on what you bought, you might like The Witcher 2.

One of the unique things about the PC platform is strategy gaming, not sure if you're into that but I suggest you give it a try. You might like it.

Games like Civilization V, Shogun 2: Total War, Dawn of War II: Retribution, and Company of Heroes: Tales of Valor are all available on Steam (which I am assuming is the platform you're using) and are great games in their own ways.

Mafia 1, The Witcher/s, Anno 1404, Total War: Empire or Shogun 2, Men of War, World in Conflict, Dawn of War 2... ummmmm....

Uh, this question is always weird. What are you looking to play?
 
Anyway, some good 'system testing' games that haven't already been mentioned:
 
Crysis
Far Cry 2
Metro 2033

@Jimbo said:

Mafia 1, The Witcher/s, Anno 1404, Total War: Empire or Shogun 2, Men of War, World in Conflict, Dawn of War 2... ummmmm....

Goddamn I love that game, get it if you have Steam ASAP.

You're specs are fine, you are at the standard for what pc games can be played. Listen to Jimbo and Giantstalker, also I recommend VVVVVV, the valve catalog, and GoG.com.

Classics are always nice.

@JTB123: Mos def, put more hours into that game then I should have lol.

@JTB123 said:

I'd recommend Painkiller also, it's not a technical marvel. But if happen to enjoy shooting dudes in the face, then few games do that better than Painkiller.

Wow, it's good to see such great taste on GB.com. Painkiller is probably one of my favorite FPS's of all time (just the original, mind you). It's also probably dirt cheap at this point.

Yeah go visit GoC.com , tryout the original fallout games they are awesome just like Fallout 3 and New Vegas (older fans will tell you they are the only way to play them , regardless they are good) if you like old school FPS you could get the ID software bundle on Steam. EYE Divine Cybermancy is a nice game too

Sounds like you've gotten off to a good start. Play what you've already acquired and then worry about getting more. I have friends who have jumped into a system that has a large, established library, whether it's the PC, PS3, or 360, and immediately bought a ton of games in the excitement. Most of them are still in shrink wrap because my friends couldn't keep up with new stuff and the huge backlog they put on themselves from the start. They all regretted it later. Steam will be there ready to supply you with your next fix when you need it.

Gotta get your Team Fortress 2 on!

If your looking for some good classic titles:

System Shock 2

Thief 2

Deus Ex

Half Life

Telltale stuff.

@Aetheldod said:

Yeah go visit GoG.com , tryout the original fallout games they are awesome just like Fallout 3 and New Vegas (older fans will tell you they are the only way to play them , regardless they are good) if you like old school FPS you could get the ID software bundle on Steam. EYE Divine Cybermancy is a nice game too

Fixed? But yeah fallout, dungeon keeper 1 & 2 (if you like it), Buldar's Gate 1 (but get the mod that makes it play like 2) & 2.

Half Life 2

Torchlight?

StarCraft II.

STALKER Call of Pripyat
FEAR 1 & 2 
Cryostasis

 
@Giantstalker said:

@Jimbo said:

Mafia 1, The Witcher/s, Anno 1404, Total War: Empire or Shogun 2, Men of War, World in Conflict, Dawn of War 2... ummmmm....

Goddamn I love that game, get it if you have Steam ASAP.

@zaglis said:

STALKER Call of Pripyat

yes yes a thousand times yes

Morrowind, LoL, Civ 5, Deus Ex (probably), um...

Yo Appleton, wanted to give you a shout out from you neighbor to the north, Green Bay. (Home to the World Champion Green Bay Packers) 
But if you just want to try out some games for free in a legit way, I would have to recomend Age of Empires Online and League of Legends. Both free to play, both satisfying their respective genres. 
Rock on man and nice build.

Minecraft and Terraria, I guess.

Vampire: The Masquerade - Bloodlines

Then there's also a ton of old PC games that could still be entertaining unless you really don't like older games, GoG.com is pretty much the best place for that.

Oh man, there's SO MUCH to play.
 

• S.T.A.L.K.E.R. Series
• Metro 2033
• Gothic I/II/III (NOT Forsaken Gods or Arcania)
• Risen
• The Witcher
• The Witcher 2: Assassins of Kings
• Heroes of Might and Magic
• Anno 1404
• Crysis
• Crysis: Warhead
• League of Legends
• Civilization V
• Overlord
• Overlord 2
• Amensia: The Dark Descent
• Alice: Madness Returns
• World in Conflict
• Thief Series
• Darksiders
• Grand Theft Auto Series
• Bully
• The Settlers
• King's Bounty
• Batman: Arkham Asylum
• Mount and Blade
• Red Orchestra
• Assassin's Creed Series
• Dead Space
• Dead Space 2
• Singularity
• DiRT 3
  

I think "PC Gamer" is a fine title. Or do you want something more impressive, lie "Sir PC Gamer" or "Your Royal Heiness, PC Gamer"?

Morrowind, LoL, Civ 5

war inc (free), star wars: knights of the old republic. a few that i thought of. you already said valve games, because they are great.

• Neverwinter Nights 2 (with expansions if you can afford it)
• RIFT (If your into MMORPG's, one of the best to date)
• Starcraft II ('nuff said)
• League of Legends (Great F2P game for skill-based PVP)
• Age of Empires Online (Great game for any AoE fan, and it is free)

If you like semi-turn-based RPGs then Drakensang: The River of Time is pretty good.  If you like turned based strategy RPG hybrids then King's Bounty: Armored Princess is good.  Of course Warhammer 40k: Dawn of War II series.  I liked Zeno Clash because it was just weird.  The Witcher 2.  The Witcher.  Terraria or Minecraft if that's your thing.  I personally like the STALKER series but it's not for everyone.

The Witcher series, Morrowind/Oblivion, and Starcraft 2.

Team Fortress 2

Call of Duty 2

Crysis

Crysis 2

Far Cry

Far Cry 2

Half Life

Half Life 2

Fallout

Fallout 2

Diablo

Diablo 2

Starcraft

Starcraft 2

Quake

Quake 3

Deus Ex

Civilization 5

STALKER

Metro 2032

DOOM

DOOM 2

Portal

Amnesia The Dark Descent

League of Legends http://www.giantbomb.com/league-of-legends/61-24024/

Dawn of War 2 http://www.giantbomb.com/warhammer-40000-dawn-of-war-ii-retribution/61-32362/

Mass Effect http://www.giantbomb.com/mass-effect/61-16909/ (I liked the first better, but they are both great)

Starcraft 2 http://www.giantbomb.com/starcraft-ii-wings-of-liberty/61-20674/

If you are willing to play older games, Warcraft 3 is worth a look great story and game play. http://www.giantbomb.com/warcraft-iii-reign-of-chaos/61-12567/

Battlefield 2, counterstrike source, F.E.A.R, Max Payne 2 ,Crysis.

Starcraft 2, immediately.

Rise of Nations, one of the best RTS games of all time.

Torchlight?