Most ancient games you return to frequently.

Now given that we are all sorts of ages, there are ofcourse gonna be a lot of different time periods in this, so of course i just mean ancient from your prospective. All of its valid. 

But the question being,  What old as dirt, ancient AF games do you find you return too frequently and enjoy, like literally over and over. 

mine would be 

Imperium Galactica Allience 2.     1999
 
Civilization 3.   2001
 

Warhammer dawn of war. (first one)    2004

  
Empire earth 2   2005



Baldurs Gate 2.   2000


 

Metal gear solid.  1998






 OG  silent hill 2. 2001

 
Final fantasy 7  1997



 
Final Fantasy 8.  1998


 

Bushido Blade 2 (1998)

Pokemon Red (1996)

Pokemon Silver (1999)

Yu-Gi-Oh! Duelist of the Roses (2001)

Star Wars: Knights of the Old Republic (2003)

Star Wars: Knights of the Old Republic 2 (2004)

The Elder Scrolls 4: Oblivion (2006)

Pong (1776)

I'm sure I'm probably forgetting some. Oh well.

Sonic Unleashed, Portal 1/2, Half-Life 2, SW: Republic Commando, Halo CE-2-3-Reach-ODST, Left 4 Dead 2, Silent Hill 2, Sonic 06, and Skyrim when I feel like spending 3 hours setting up mods