"The Challenge" is simple:
Survive one winter!But...
...under rules and terms listed below:
1) Character creation-Custom
-Random culture
-Winter
-Do not re-roll your stats, go with first generated ones
-Improve any skills you like
2) Map generation-You are lost, do not look where you start, it has to be random. Best you can do is close your eyes and press "r" for random starting location and then "e" for start.
3) Scenario and game course-Hurt, helpless, and afraid (and naked, explained later)
-The UnReal World
4) Start-As I said, you are naked, take all clothes off ("T" then "+" then press space)
-You have nothing with you, drop all items on ground ("d" then "+" then press space)
-Destroy all ("D" and keep confirming discard with Enter button until all is gone)
-Yes, you are naked and have nothing apart of will to survive (and few wounds to heal)
5) Rules-Do not zoom out with Enter, do not even peek, you are lost, remember? Travel only on zoomed in map
-Do not use big map "F6"
-You can peek on a peak (you can use Enter to take a look around only when standing on top of the mountain but you cannot walk on zoomed out map), you can ignore this rule, but personally I think it's fair to take a look from top of mountain.
-If you get to village by any luck, you can start to travel on zoomed out map
-Survive whole winter
-Have fun!
"The Challenge" is doable, I've done well few times but died of my stupidity in half way through like:
-chased big game and get drown under broken ice
-frozen to death as were not enough lucky to get fire started, should have think about fire earlier
-attacked sleeping Njerpez and get killed - what a nightmare!!
Now I've got new char but it's carving for water and I cannot fine any.
I could give you few tips but I don't want to spoil your experience.
Please post below your stories if you ever dare to try "The Challenge".
Edit: - do not use mods, you can have them, just don't use them during first winter.
(also edited point4.2 to clearly state that you start with nothing at all)