What are your Favorite First-Person Shooters of the Decade?

Mine are:  

• Half-Life 2
• Halo: Combat Evolved for single-player and Halo 3 for multi-player
• Team Fortress 2
• Metroid Prime (If that game counts as a first-person shooter that is.)
• Call of Duty 4: Modern Warfare 
• Deus Ex 
• Battlefield 2
• Unreal Tournament 2004
• F.E.A.R
• Daikatana..... I'm just kidding, Far Cry

I can do a Top 3. 
 
1) BioShock 
2) Portal 
3) Call of Duty 4: Modern Warfare 
 
Close cuts for Halo 3, Metroid Prime and Team Fortress 2.

portal if it counts 

In no specific order:

• Portal
• Team Fortress
• Half-Life 2
• Unreal Tournament 2004
• Call of Duty 4: Modern Warfare
• Borderlands
• BioShock
• Battlefield Bad Company 2

"In no specific order:

1. Portal
2. Team Fortress
3. Half-Life 2
4. Unreal Tournament 2004
5. Call of Duty 4: Modern Warfare
6. Borderlands
7. BioShock
8. Battlefield Bad Company 2

 I'm sure I'm forgetting quite a few. Ah well. "

"portal if it counts  "

" Mine are:  

• Half-Life 2
• Halo: Combat Evolved for single-player and Halo 3 for multi-player
• Team Fortress 2
• Metroid Prime (If that game counts as a first-person shooter that is.)
• Call of Duty 4: Modern Warfare 
• Deus Ex 
• Battlefield 2
• Unreal Tournament 2004
• F.E.A.R
• Daikatana..... I'm just kidding, Far Cry

"

Portal
Halo 3
Half Life 2
Metroid Prime
Mirror's Edge
Modern Warfare 2

" @Caboose48 said:

" Mine are:  

• Half-Life 2
• Halo: Combat Evolved for single-player and Halo 3 for multi-player
• Team Fortress 2
• Metroid Prime (If that game counts as a first-person shooter that is.)
• Call of Duty 4: Modern Warfare 
• Deus Ex 
• Battlefield 2
• Unreal Tournament 2004
• F.E.A.R
• Daikatana..... I'm just kidding, Far Cry

"

ughhhh...Halo CE OR 2 mp is better than 3's IMO. uhhhh half life 2 Deus ex Shadowrun halo CE Halo 2 (for when no one's there to LAN) Borderlands CoD4  "

I'm going to go with Timesplitters, I'm not sure why really, it just has charm which i have succumbed too. 

Halo CE on PC is much better than any Halo game on a console. Its the only one i ever finished aswell, 2 and 3 couldn't hold my attention at all 

BioShock, Half-Life 2, Portal, and I was in LOVE with Medal of Honor: Frontline as a youngin'.

"

I'm going to go with Timesplitters, I'm not sure why really, it just has charm which i have succumbed too. 

Halo CE on PC is much better than any Halo game on a console. Its the only one i ever finished aswell, 2 and 3 couldn't hold my attention at all 

"

Red Faction 
UT 2004 
Killzone 2 
 
I'm not a big fps guy though.  Also, Half Life 2 is a bit overrated (sorry). Maybe i just played it too late.

Half Life 2 
Bioshock 
Portal 
Area 51 (2005)

of the stuff I have played...
 
Half Life 2 (and it's episodes)
Team Fortress 2
Portal
all 3 Halo's 
BioShock i guess

"BioShock, Half-Life 2, Portal, and I was in LOVE with Medal of Honor: Frontline as a youngin'. "

Left 4 Dead 1 and/or 2.

Metroid Prime, BioShock and Half Life 2.
 
I don't play many FPSs, though.

Red Faction, CoD4 (yeah, COD4.), Black, Postal 2 and others 

" @xionpunk: Clearly. That game did so many unique things...and they all worked so well... "

Time Splitters 2, Red Faction, Half life 2, insurgency.

"Red Faction, CoD4 (yeah, COD4.), Black, Postal 2 and others  "

I'm ignoring the decade part and just listing my favorites...

1. System Shock 2
2. Half-Life
3. Unreal Tournament GOTY '99
4. Rainbow 6: Raven Shield
5. Call of Duty 2
6. Half-Life 2
7. Bioshock
8. Quake 2
9. Halo 2
   
10. Return to Castle Wolfenstein
    

F.E.A.R. is amazing.

"I'm ignoring the decade part and just listing my favorites...

1. System Shock 2
2. Half-Life
3. Unreal Tournament GOTY '99
4. Rainbow 6: Raven Shield
5. Call of Duty 2
6. Half-Life 2
7. Bioshock
8. Quake 2
9. Halo 2
   
10. Return to Castle Wolfenstein
    

"

I was going to say Goldeneye, but that was the decade after last.  I guess I'll go with Perfect Dark then.

"F.E.A.R. is amazing. "

 No order (and fuck Quake 3 for having a Decemeber 1999 release date, so close)
 
Half Life 2 and episodes.
Portal.
Deus Ex.
Stalker.
Bioshock. 
Call of Duty Modern Warfare 2 (toss up between it and one but I've played more of the second games multiplayer by far)
Battlefield: Bad Company.
 Alien VS Predator (2000).
Unreal Tournament 2004.
Killzone 2 (purely for having the first multiplayer  where I saw  people not on an established team actually working together).

Half Life 2 
Call of Duty 4 
Battlefield 2

Mostly all the Source engine games especially Counter Strike: Source.

BioShock, Crysis, Half Life 2, UT2004.

Top Three:
3. Half-Life 2  
2. COD  4 
1. Halo 2 

Left 4 Dead and L4D2
Half life 2 and episodes
Portal
Team Fortress 2
...... man Valve makes a lot of great fps'
Halo 2
Bioshock (Favorite)

" Left 4 Dead and L4D2Half life 2 and episodes Portal Team Fortress 2 ...... man Valve makes a lot of great fps' Halo 2 Bioshock (Favorite) "

" Top Three: 3. Half-Life 2   2. COD  4  1. Halo 2  "

Half Life 2 is the right answer.

Tough decade to choose from 
Online

• vCoD/UO
• CoD4
• CSS
• TF2
• BF2

• Half-Life 2
• FEAR
• CoD4
• Far Cry
  

Portal

Planetside
Half Life 2 & EPs
Team Fortress 2 
Call of Duty 4 : Modern Warfare
Unreal Tournament 2004
BioShock

Half-Life 2 primarily. Bioshock was okay, I guess. I liked Killzone 2 some.
 
EDIT: Wait, decade - are we talking 2000 through to 2009, or 2010 through to 2019?
 
EDIT redux: Because if we're talking 2000 through to 2009, then my original answer applies. If not, then I cannot provide an answer to your question. I'm sorry.

TF2 and HL2: Ep 1.  For sure.

" @Redbullet685 said:

" Left 4 Dead and L4D2Half life 2 and episodes Portal Team Fortress 2 ...... man Valve makes a lot of great fps' Halo 2 Bioshock (Favorite) "

@Bones8677 said:

" Top Three: 3. Half-Life 2   2. COD  4  1. Halo 2  "

Why does everyone else here but me like Halo 2 more than Halo CE & 3, am I the only one here who hates n00b friendly games? "

• Bioshock 1
• Half Life 2
•  Portal

 Left 4 Dead  1
 Halo Combat Evoled 
 

Well, the only first-person from the decade that I've played was BioShock 2, so I guess that's it. Might want to wait longer than four months before you ask, eh?

Quake 3 
Halo  
Halo 2 
Halo 3 
Halo 3 ODST 
CoD4 
MW2  
Perfect Dark
Portal 
Jedi Knight 2 
*Team Fortress Classic* ... I know that's a little too old but I was playing the crap out of that till like, 2004

Counter Strike (I was still playing in the naughties. Don't know when it came out and I don't care what you think)
 Day of Defeat
 That whole first wave of WW2 shooters
Deus Ex
Team Fortress 2

Anything VALVe made. 
Anything Bungie made. 
Anything Infinity Ward made. 
Bioshock