If you could only play ONE game for the rest of your life, what would it be?

brutal legend

In the words of Dodger, TETRIS.

Sword Art Online!

Civilization 5

EVE Online for sure. No other games can compare in terms of endless playability.

Half Life 2.

The Binding of Isaac.

Probably Final Fantasy VII.

X3: Maybe i could 100% the mission lines.

the game called "life", like explained here

I'd pick a game that has a great modding potential.
I used to play WC3 alot someone even made and FPS mod in it, I imagine SC2 could fulfill the criteria or Spark or Little Big Planet ( I haven't actually played those 3)

How about a game called life, I will play life. And in that game I will play the games I have now.

I'd play SWTOR and beg EA to take all my money in exchange for awesome cosmetic items!

eurotruck simulator

Heroes of might and magic 3, infinite gaming time already spent on it so nothing as fine with me as spend some more of it on this - the only good heroes of might and magic game (well prequels were fine but all the other new ones sucked a lot)

Morrowind for sure, the amount of content from the GOTY edition is crazy and mods add a lot more content. It may be dated but I still love the game.

Oblivion

GTA V

GTA V, Skyrim, or Red Dead Redemption.
I had the funniest times on RDR lmfao.

Kerbal

Star wars knights of the old republic Or Mass effect !!!

League of Legends or Warcraft 3

The games with large modding community certainly have an advantage here.
Other than those games with mods, I think I'll pick Football Manager or Dark Souls.

Pong

Probably one of The Elder Scrolls games... They all have so many good mods that add even more to the gigantic games.