i used to played diablo 2 a loooooot , had 10 accounts each having a dozen characters of lv99 with all crafted items that killed everything...i could complete a hell level mephisto run in less than a minute.
I think it was Army Men: RTS and Deadly Dozen(this one was cancer! hard for me at that age). I love strategy and RPG games and since I could earn them for free so I played about more than 100 top strategic and RPG games in 16 years like The Settlers Video game series,Heroes of Might and Magic( all series),Dragon Age (all series),The Guild,The Lord of the Rings,Command & Conquer: Generals(all series),Medieval II: Total War and more just wasted a lot of time in games... but worth it
Many people actually still play that game (as I still do for over 14 years now) and it's surprising to see how the game is always getting updates and attracting new players. Most people these days play the 2007 version of the game (which is how the game was in 2007 but is still receiving all kinds of new updates) so it's still fun to play.
Once I started to play the game I was instantly hooked on the game and spent many hours grinding all of my skills and eventually maxed out all of my skills and completed all the quests. You can never truly complete the game as there's always something being added and there's other things you can do besides level up your skills.
RuneScape 3 is not my favorite as it really changed the game mechanics and feels completely different (though the graphics are pretty damn amazing if you ask me) but I don't really pay much attention to this version as it's really not as popular as the 2007 version. However I do think that if they were to change the game back to how it was in 2012 it will be even more popular today.