Here's a Mushroom and Merc game guide!

[Xviax]

Mercenary Games:
Darion: Arm wrestling
Halfarus: Insult Match
Theogal: Drinking
Meledar: Poetry
Melic: Card game
Zoe: Singing
Jeda: Darts
Velana: Juggling
Erus: Chess

Mushrooms:
Agaricus Bisporus: Good
Amanita Phalloides: Bad
Amanita ♥♥♥♥♥♥ta: Good
Boletus Impolitus: Good
Cantharellus Cibarius: Good
♥♥♥♥ocybe Candicans: Bad
Cortinarius Orellanus: Bad
Sarcophaera Coronaria: Bad

[Statue]

A possible alternative implementation to bring RNG into it would be to identify a primary stat for each challenge, have that modify the base % chance, and add the bonus from the individual character/lore matches (throw in some negative character modifiers and have them hinted at in flavour/character text somewhere, for example mentioning that Zoe never touches a drop before a singing performance as it renders her dazed and out of tune - that would imply she gets a - modifier for drinking whilst conveying she gets a + modifier for singing).

For examples of how stats could also be brought in:
Arm wrestling success % = x (base chance) + (strength * 2) + character modifier
Drinking success % = x (base chance) + (hp * 2) + character modifier
Darts success % = x (base chance) + (critical%) + character modifier
Juggling success % = x (base chance) + (dodge%) + character modifier

Admittedly, with some of them, the idea of drawing on stats to adjust the % gets a little more tenuous (e.g. what stat would influence chess?!) but still. It would allow for some RNG and some stats influence whilst retaining a character match bonus.

I think at the very least it would be beneficial to ensure that somewhere during the game (even if in relatively hidden comments such as the one line statements made during resting) the player being given a hint about character proficiencies relating to the gamble challenges would make it more rounded and less learn by rote.

[Statue]

Another mushroom to add to the list:

Craterellus Cornucopioides: good (only found and used 1, only gave +1hp but may have been unlucky).

[Sweem]

Originally posted by Statue:

Another mushroom to add to the list:

Craterellus Cornucopioides: good (only found and used 1, only gave +1hp but may have been unlucky).

I was going to write the same thing. Except it gave me +4hp.

[P@N]

thx for this little helpful guide!

[Plume]

Just so you know, I made a guide some months ago with shrooms and inn's game (for merc) and other stuff.

http://steamcommunity.com/sharedfiles/filedetails/?id=365094854

I haven't check if there is any new stuff on your list, I will try to do that and update my guide.