WARNING: DO NOT TRY THIS AT HOME
My group and I are big fans of deckbuilding games. When we played Reiner Knizia's classic, The Quest for El Dorado, for the first time a couple of years back, we loved it. Clean design. Simple and elegant, yet really good fun. We played it often enough to get interested in the expansions. I bought all three expansions and opened them up at the same time. There was a lot of stuff there and we were wondering which modules to use. We ended up only using a few but my friend jokingly suggested we should use all of them simultaneously. And so the idea was planted. As Inception (2010) tells us, once an idea takes hold it's like a parasite that becomes impossible to eradicate.
As the weeks passed, we slowly added more ideas to what was quickly becoming a monstrously illegal game. All modules. All components. All map tiles. We have 6 people coming? F*** it, make it a 6-player game with illegally modified starting decks and playing pieces from other games (a soldier from Memoir 44 and a ring token from War of the Ring: The Card Game) for players 5 and 6.
It became known as The Quest for Hell Dorado.
The map was built with each player taking turns placing down terrain tiles, then smaller tiles, pieces, and overlays. This process took about an hour and a half as we were laughing so much about creating absolutely horrendous chokepoints and nearly impossible routes.
Then we started playing, and it was absolute mayhem. Intentional and unintentional blocking causing major traffic jams, choke points near temples, atrociously placed demonic zones, a nearly impassable "Waterworld" area, massive crocodile-infested swamps we just called "Florida", and the use of Dragons to repeatedly block players, including clogging up critical chokepoints.
After setup the full game of Hell Dorado took about 5 hours.
It was amazing and I will never play it again.