That would the finale of our three-year Chronicles of Cidri campaign last October, when the player-characters made their final stand against The Yellow King and his minions.
It couldn't have worked out more dramatically.
And it was all going just by the dice rolls.
Nobody's death - or survival - was preordained or scripted.
When it was all over, even though only one character survived (escaping through a 'tunnel of light' to... somewhere else), the Tuesday Knights spontaneously applauded.
And in that moment I was reminded of just why I love this hobby so much, and the enormous thrill and pleasure that can be gained through the process of communal world-building and storytelling.
Now, whenever I have doubts about the time and money I invest in this little pastime, I remember that moment and the genuine smiles on the players' faces (even though most of the characters had been slain by flying monkeys or other foul magics).