Good ones.
I was playing the Original Megaman on my Wii the other day.
And I've been playing the original Starcraft for the past 3 days.

Gangsters: Organized Crime
Constructor
Theme Hospital
Age of Empires 2
Caesar III
Pharaoh
Heroes of M&M 3
Red Alert 2
Worms 2 & Worms Armageddon
GTA 1

King's Quest

Games from GOG

I bought Dragon's Lair recently, spotting it for $2 at half price books.

Love the original Sonics and Wing Commander is cheap on GOG right now, never get tired of 1,2 and Privateer.

Old arcade wise, I'm always ready to play Moon Cresta. Many happy memories playing that while waiting for Pizza.

Classic Resident Evils.

Dungeon Master

Pong
:-)

Dune 2, Diablo 1, X-Com Enemy Unknown.

Sierra and especially LucasArts adventures. Well, and a lot more old point-and-clicks :D

Quite a few, of the ones I've played more recently I really liked Unreal

sonics, resident evil 1,2,3, ace combat 3, mmmmm I can't remember more

Might & Magic classics, Gothic 1&2, Witchhaven, Quake...

Unreal, Diablo, Resident Evil up to 4 (Including Mansion and Zero), Quake, Heretic: The Serpent Riders, Duke Nukem. Etc.

Age of Empires II HD PLEASE! :pinkheart:

Age of Empires. Command & Conquer Red Alert 2. Worms Armageddon. Tetris. 3D Space Cadet Pinball (yes, the one that was on Windows 98 / XP).

Including, but not limited to:

Zax : The Alien Hunter. Does anyone remember this game? I had a lot of fun with it, easy and relaxing. Reminding of good old Amiga times.

I still play Jazz Jackrabbit from time to time. Well, actually I haven't played for a while... WHERE'S MY DOSBOX?

Well, I'm currently playing Final Fantasy Tactics.

Oh boy, I understand why so many people hate this game. THE GRINDING.

Abuse, Privateer, Syndicate, Settlers 2...
Quarantine, Cannon fodder....
This story can continue! :D

Baldur's Gate, Diablo 2 and Jazz Jackrabbit 2.

Tons and tons of old arcade games.

Aliens, S.T.U.N Runner, Hard Drivin', Star Wars, Teenage Mutant Ninja Turtles, Gyruss, Tron, Discs of Tron (especially if you find a complete environmental cabinet in full working order), Contra, Spy Hunter, Rolling Thunder, Super Spy, S.C.I., Sunset Riders, X-Men, Killer Instinct 2, Marvel vs Capcom, Last Blade 2, Magician Lord.

I'm going to have to stop or the list of old arcade games I love is going to be a few pages long.

Uncharted Waters: New Horizons 2 best game EVER!