Not much to add to other people's reviews. This is a CULT CLASSIC. Turn-based tactical to its finest, nothing before or after ever came close. Yes, not even the phenomenal X-COM series. In ten years, you will still remember fondly of that time when Ivan single-handedly held back twenty enemy troopers, or Shadow managed to conquer the entire Drassen airport by himself and without being noticed. I'll repeat myself, but this here is the stuff of legends.
I remember I never heard about Little Big Adventure. Then a friend lent me his copy of LB2 and at first I was, what, is that a children's tale? A fable? I kept playing a little to see where it would be going before uninstalling. And I didn't uninstall it. I was completely taken by the setting, rock-solid gameplay and ambient. Yes, it is a fable. And it manages to do the impossible, take you back to that age when everything was an amazing mystery, every rock in the courtyard was a mountain range, every anthill a cave filled with adventures. I can't find better words for this than pure poetry.