* * * * * * * * challenge * * * * * * * *

is my fave English word. Actually, as I gamer (and also a thinker) I understood this thing about myself a long ago: I love achieves, love the harsh challenges, and love to play certain videogames that suggest hard stealth walk-throughs, long quests or tricky missions, stuff like this -- which pay off in rare awards. 'Well-done' or 'mission completed' go along with it naturally.

_{I invite @datych, @irchen and @may2015 to this post.}