Here is the full list of all 50 Roman's Christmas achievements.
Reach 100 mistakes in total
Dream every dream
Become the killer
Reach the final ending
Get the cards wrong, again
Get the cards right, again
Continue searching
Face Thrivey's death
Stop searching
Not a single mistake!
Face Herrin's death
Read the whole book
Reveal the truth of St.Isaac's Church
Face Vincel's death
Cheat Vincel into confessing
Confront Vincel
You are Elegant now
Face Peter's death
Hear everyone out
Face Lunic's death
Face Ianis' death
Find out what Vincel doesn't eat
Rub Anzox's belly
Eavesdrop three times
Vincel got stuffed with Tsarzn's socks
Anzox got hit in the head
Have a nice dinner
Agree to write a love letter for Peter
Hit the bullseye
Miss the dart clock
Let Lunic talk about the King's feast
Hide the truth from Herrin
Face Shawn's death
Check the mugs multiple times
Look in the mirror
Check the candles multiple times
Refuse Tsarzn
Face Kane's death
Get the cards wrong twice
Get the cards right twice
Let the ladder fall
Get drunk
Break Anzox's lute
Hear another story from the bard
Find Elena not guilty
Find Elena guilty
Search for the good part
Hear a story from the bard
Mistake Elegant's gender
Welcome to the tavern