Lmao, don't let the Zelda fans hear you say that. 

I consider stand alones there own game, even if they started as DLC the publishers decided to release it as a smaller game. If you were to count them you'd have to count many actual sequels as expansions like you said, ToTK, GoW ragnorok and the like would all become really big full price expansions. It's tricky to define cause MMO expansions are basically by all standards, sequels to the base MMO game. 

As somebody who much prefers AoE2, I will concede that AoE3 has a lot going for it.

I voted Blood and Wine.

Easy choice for me. I wish I was playing it right now. Best late-summer to mid-autumn RPG.

1. The Frozen Throne
2. Burning Crusade/Wrath of the Lich King
3. Witcher 3 expansions
4. Half-Life 2 Episode 1 & 2
5. Heart of the Swarm

Also a couple of great rereleases that are sort of like expansions - Persona 5 Royal and The Stanley Parable Ultra Deluxe.

I would say if enough people are still playing it daily after 25 years to keep on developing the game, it must have aged incredibly well. Heck the whole Souls mania goes back to that difficulty of early mmorpgs.

The game play is what has aged well. The graphics are of course far behind modern titles, but they have managed to keep the aesthetic intact over the decades.

Anyway not many other games can boast about an active player base, paying monthly, for 25 years. But I wonder how hard it is nowadays to get started in the game. Overwhelming amount of content.

Cyberpunk 2077: Phantom Liberty.

Hard to separate it from the 2.0 update though which combined changed the game from pretty good to outstanding.

I have some oldies in mind from the time when the terms expansion/DLC didn't exist yet, they were called Add-ons:

- Commandos: Beyond the Call of Duty - several new great missions

- Carmageddon: Splat Pack - the new tracks weren't that great IMO but still it was more of Carmageddon

- Heroes of Might & Magic II - The Price of Loyalty? - just more maps to play

1. Alpha Centauri - Alien Crossfire
2. Dragon Age: Origins - Awakening
3. Hearts of Iron II - Armageddon
4. Mario Kart 8 Deluxe - Expansion Pack
5. Heroes of Might & Magic III - Armageddon's Blade
6. Command and Conquer: Tiberium Sun - Firestorm
7. Wizardry - 2/3 (Wizardy 2 and 3 need their respective predecessors to run, so they are expansion packs by modern standards but that concept or term didn't exist yet back then)
8. Baldur's Gate - Siege of Dragonspear
9. Diablo II - Lord of Destruction
10. Diablo - Hellfire