SInce the last time I was active on these forums, and off the top of my head...

GBA;

Spoiler warning:
Mega Man Zero 1
Mega Man Zero 2
Mega Man Zero 3
Mega Man Zero 4
Sigma Star Saga


DS;

Spoiler warning:
Mega Man Zero Collection
Mega Man ZX
Mega Man ZX Advent


PC/Steam;

Spoiler warning:
Akaneiro: Demon Hunters
Baldur's Gate: Enhanced Edition
Bioshock
Bioshock 2
Breath of Death VII
Bully: Scholarship Edition
Cave Story+ (Because I love that game to the point where I decided to pay for it.)
Chantelise
Cthulhu Saves The World
D& Chronicles of Mystara
DLC Quest
Deus Ex: Human Revolution (with three DLCs)
Dungeon Siege 2
Endless Space - Emperor Special Edition
Fable: The Lost Chapters
Final Fantasy VII
FTL: Faster Than Light
GundeadliGne
Gundemonium Recollection
Half-Life 2
Half-Life 2: Episode One
Half-Life 2: Episode Two
Half Minute Hero: Super Mega Neo Climax Ultimate Boy
Hitman: Codename 47
Hitman 2: Silent Assassin
Hitman: Blood Money
Hitogata Happa
Magical Drop V
Mass Effect 1
Mass Effect 2
Mirror's Edge
Phantasy Star II
Phantasy Star III
Phantasy Star IV
Portal 1
Portal 2
Postal 2 Complete
Quake 4
Sonic Generations (with Casino Night DLC)
Star Wars: Battlefront II
Star Wars: Knights of the Old Republic
Star Wars: Knights of the Old Republic 2
Skyrim (with all DLC)
System Shock 2
The Binding Of Isaac
Thief Gold
Thief II: The Metal Age
Thief: Deadly Shadows
Transformers: War for Cybertron
Warhammer 40,000: Dawn of War -Dark Crusade
Warhammer 40,000: Dawn of War - GotY Edition
Warhammer 40,000: Dawn of War -Soulstorm
X-Blades
Ys I&II Chronicles+
Ys: The Oath in Felghana
Ys Origin


PS1;

Spoiler warning:
Breath of Fire IV
Vagrant Story


PS2;

Spoiler warning:
La Pucelle: Tactics
Xenosaga Episode III


PSP;

Spoiler warning:
Dissidia Final Fantasy
Dissidia 012 Final Fantasy
Growlanser: Wayfarer of Time
Tactics Ogre: Let Us Cling Together