I am aware that this is a game that doesn’t have dragons or unicorns or all the other assorted fantasy elements of the modern gaming industry… however the time portrayed in the game was a time of superstition. I think it would be cool if this was reflected in some of the adventures we can go on.
For example, a creepy haunted wood might actually be the abode of brigands. And there really were unicorn hunts even if no one ever caught one.
Boojum
Thats actually an idea that i really liked, you’re right, that time folks had alot of myths way more than today, it would be very cool and improve to imersion and realism if they added those kinda of quests “Hunt the werewolf” (having some inocent killed cus they thought he was an werewolf) or “witch hunt”, would be cool if inside the dungeons had some cult meetings also.
This is completely off topic but I would like to point out that sometimes “unicorn” was used as the name for a giant wild ox that was hunted in roman times and even captured for use in the arenas. 
A quest involving angry crowd and a supposed witch could be interesting. Giving the player the choice between defending the poor lady or being with the mob. Like in Baldur’s Gate (Viconia?) or in Monthy Pythons Holly Grail.
Let’s just hope she’s not actually lighter than a duck. 
Or a very small rock.
Do you possibly mean the Aurochs? I’m pretty sad that these are extinct 
I’d ask myself though whether they were still regularly seen in the middle ages’ central Europe! The last one was killed in the 17th Century in Poland but I don’t know how its population was spread in the early 15th Century. I only know they were quite common in the Germanic territories throughout the ancient times.
This would be interesting in game terms considering that these might have been around in Bohemia at the time. This could add a nice and threatening “monster” - since most sources I know are talking about them as fairly aggressive beasts. 
Since all myths are based on misunderstood real stuff, it would be nice have some quest about that. Warewolf, vampire, unicorn, why not. All ill/mutated animals or people. It’s kind of dark stuff, but that was the times, a little knowledge, fear from unknown.
I really like the idea of a witch hunt due to some plague infestation or a bad crop, so the everyone’s tensions and paranoia start skyrocket. And maybe certain vassals will take advantage of the situation and accuse/frame their rivals of witchcraft in order to inherit their estate after said rival is executed. And it could be up to the protagonist who to side with - protect the accused in the spirit of justice, or side with the corrupt in exchange for favors and wealth. Just and idea…
As a side note, here are the approximate statistics (from Wikipedia) on the number of trials for witchcraft and executions in the period 1450–1750:
In the Holy Roman Empire (Germany, Netherlands, Switzerland, Lorraine, Austria including Czech lands - Bohemia, Moravia and Silesia), there were and estimated 50,000 trials and 25,000–30,000 executions.
I really like this idea, like a quest to go investigates nearby town being terrorized by a giant. Which turns out is just a freakishly tall guy who is a little slow, not realizing that taking the local livestock to cook his meals is wrong. You get a choice to take him out and be recognized as a hero, or simply talk to him, something the villagers have been too afraid to do. Both options may have certain advantages or disadvantages later down the line.
Fighting werewolves, just large feral wolves that seem unnatural in their size or coloring, and burning ‘witches’ simply because they have performed the seemingly impossible.
sounds hollywood. why they think he’s a giant? towns people aren’t stupid, you are not medieval sherlock holmes.
There once was a rumour that there was a dragon, which ate the villagers livestock, in the island of Rhodes. One knight of Rhodes slew the beast, although it was forbidden to disturb it. Later they found it that it was actually a crocodile.
I am not in favour of adding a dragon/crocodile, but nevertheless it would be funny to implement a horrific beast, which turns out to be a regular animal.
Must resist the urge for a Monty Python reference…
No because medieval peasantry were all highly educated like the the people of today… And the whole point is the mystery around it. I’m not saying anyone got a good look at him, so maybe their scared imaginations take over.
Try to remember that the common populous was A LOT smaller back then, so freakish variations in size would have seemed a lot bigger in comparison.
People maybe wasn’t stupid, but they wasn’t educated either. Don’t forget it was times when people believed that witches and demons are real. And other crap which church force into their heads.
Original church involvement with witch hunts
To be honest I personally feel that witch hunts are in today’s popular culture overblown and partially romanticized.
@213 your always so remarkably rude. Were you abused as a child or are you still one? If not please seek consoling if you are a child tone down the rudeness. It will help you later in life.
hah, this just reminded me the crocodile of Brno/Brünn, officially called “Dragon of Brno/Brünn” for there is also a legend behind it. Its true origin is uncertain but it is believed to be either a gift from some southern guys (Turks) or it was brought by the crusaders. The city is just 150km away from the KC:D Act 1 location so… 
Yeah, as we have just recently read:
"Warm lungs from a cat heal madness in women, while for men it’s warm lungs of a male goat."
Or
"Don’t have sex on Saturday, kids will be retarted."
Or
"How to heal amnesia: Take heart of a completely black hen, cook it along with another hen,… then there are some spices, even honey… and eat it, but in forenoon only."
Or
"How to get rid of grey hair: Wash the hair in dog water. Also burn a bread with salt, mix the ashes with bear lard and grease the hair with it"
And very traditional
"What to heal a snakebite: basically go to the woods, cut some wickers, repeat some prayers, then bandage the wound with the suddenly holy wickers."
Ah, the olde tymes. Never get old.
While some of that is silly, there were some herbal remedies that are medicinally legitimate.