Games you have completed on hard mode or higher.

[Get_A_Grip_]

Haven't completed too many games on a high difficulty.

Metal Gear Solid 2: Sons of Liberty
Resident Evil 4
Metal Gear Solid 4
Half-Life 2 (I suppose this doesn't count as it was insanely easy on every other difficulty)
Call of Duty 4: Modern Warfare

 

[StealthyNinja]

CoD 4
MW2
Black Ops

Yeah, you're jealous aren't you?

These are the only ones that come to mind atm, might have more later. They're second playthroughs as well, I'm not manly enough to play through the game on Hard first time through.

 

[mParadox]

Bioshock
Dead Space
Dead Space 2
Prototype
Devil May Cry 4(doing at the moment come to think of it)
Batman Arkham Asylum
Half Life Series (yes, as a whole.)

I think that's about it.

 

[Elsarild]

I play all my game on atleast the second hardest level.

Can't be arsed to write them all here.

 

[Magicmad5511]

I go through every game on a low difficulty then play through on higher or possibly highest difficulties.
So in answer to your question everything. I have played everything I own through on the highest difficulty. It would take too log to list everything so I'll just say everything.

None of them have beaten me yet. I've finished them all.

 

[New Vegas Samurai]

God of war
God of war 2
Devil may cry
Devil may cry2
Devil may cry3
Silent hill 3
Silent hill 4
MW2 ( first playthrough , hardened mode)
Black ops ( first playthrough, hardened mode)

Dead space (first playthrough, survivalist mode, plasma cutter only)
Dead space2 ( first playthrough , survivalist mode , plasma cutter only)
Gears of war 2( first playthrough)
Bayonetta ( unfortunately you have to finish normal to unlock hard , thats bullshit)

Much similar to yours only with a few additions
FO:NV Hardcore (that fancy realistic setting), Hard
Space Marine(first play)
BF3(first play)
BF bad company 1&2
MGS 1,2,3, and 4 big boss hard second playthrough *as with bayonetta I needed to play through it once
Bulletstorm
Crysis 1,2 (Post Human Warrior)
Deus EX HR (could never get through Deus ex one on hard)
Witcher 1 (but never 2)
Alice Madness returns
Killzone 1,2
Uncharted 1
Infamous 1
Hard Reset
God Of War 3

 

[Ipswich67]

Touhou EoSD on Lunatic. (all 3 continues but by god I did it!)
And a slew of others but Touhou is definitely the most memorable.

 

[DustyDrB]

I suck at hack and slash games like God of War and Bayonetta, so I played them on normal. Everything else, I don't go below Hard. I did this in Vanquish not realizing how unforgiving that game is. It kicked my ass pretty hard, but the challenge was fun. I lost count how many times I had to retry the final boss(es).

 

[sevreon]

One that really pissed me off was Veteran on MW2. I kinda suck at shooters so I was super pleased with myself when I got to about 1 or 2 missions from the end, when my Playstation decided to crash and not turn on again.
I had to get a new one and I hadn't backed up my hard drive for a few months Couldn't be bothered to play it from the beginning again to get that gold trophy for completing the game in Veteran I was aiming for since I was so angry.

 

[MammothBlade]

Persona 3
Persona 4
Metal Gear Solid 3
Metal Gear Solid 4
Call of Duty Modern Warfare
Call of Duty World at War
Resident Evil 4
Left 4 Dead 2
Battlefield: Bad Company 2
Civilization IV (Noble)

 

[putowtin]

This year (because I've had very little cash to spend on new games) I've been going back through my game collection and replaying on the hardest difficulty I can, so over the last few months I've completed the following on hard-core:

mass effect series
unchated series
infamous series
the force unleashed 1 and 2
FO New Vegas
Saint's Row

 

[Dark Sup3rn0va]

Doom
TC's Rainbow Six Vegas 1 + 2
Unreal Tournament 99 + 3
Gears of War 1 + 2
Left 4 Dead
Fallout 3 + NV
Oblivion
Battlefield Bad Company 1 + 2
Halo 1 + 2 + 3 + ODST + Reach + Wars
Mass Effect 2
Shadow Complex
Call of Duty MW 1 + 2 and BLOPS
Deus Ex: Human Rev

I like to play a lot of games on the hardest difficulty. My favorites in paticular are the Fallouts and Oblivion. The hardest part in Oblivion was getting out of the starting dungeon. Even talking about Oblivion is getting me more hyped for Skyrim!

 

[jawakiller]

I don't keep track. Most games I like I'll beat on the hardest setting. Really easy games I'll put on the hardest setting for a challenge. I'll prolly end up playing through skyrim on the highest level second or third run.

 

[Lunar Templar]

generally, i only play on hard if there's an unlock tied to beating it, if its just an achievement, then I'll probably never up the diff

 

[Truniron]

Crisis Core Final Fantasy VII
Castlevania Portrait of Ruin
Valkyrie Profile: Lenneth
Dragon Age Origins
HALO Reach
Metal Gear Solid 1, Peace Walker and Guns of the Patriots

Fun with a little more challenge, but some of them was not fun at certain parts (The stairway before the HinD Battle in MGS1).

 

[Angry_squirrel]

I usually start on the second to hardest difficulty. Then - provided I like the game - I'll finish it on the hardest difficulty. So yes, just about every game I've ever owned I finished on the hardest difficulty. Dante Must Die in DMC2 and European Extreme in MGS2 are my most difficult accomplishments by a very, very long way.

 

[demoman_chaos]

I can't think of many, but I do remember besting Gundam Crossfire on Very Hard (an underrated game in my opinion, but I am a whore for Gundam games).
I've also taken Doom II down on Ultra-Violence mode (Nightmare difficulty is BS). Unlike modern shooters, Doom 2 only has 2 enemies that are cheap. The rest of the challenge comes from the hordes and non-regenerating health. It also doesn't save checkpoints automatically. If you forget to save for a few levels, you are going back through them when you inevitably die. Doom II does not fuck around. I use a mod to make it full 3D with vertical aim control (Risen3D is what it is called), so there isn't autoaim like there is in the vanilla version.

 

[Batou667]

All the Halo games, Gears of War 1. Can't think of any others.

 

[lee1287]

Gears Series.

Done.