"When we first got this place, I was the only girl who was here and I actually got involved with this place because I have amazing friends," said Toni Lane Casserly, a faculty member at Singularity University, a collaborative technology learning platform.

Lane-Casserly has seen a shift in her years in the space. When she first got there, people were telling her that Bitcoin was used for bad ends. Now people are asking her how they could get involved in the ecosystem.

Another roommate, Viviane Ford, had a similar experience.

"It's funny to see this slowly just gain more and more ground. We used to have a Bitcoin predictor on the window up there and we would guess by the end of the year it's going to hit a thousand or something." said Ford, vice president of Operations at Comma.ai.

"There was one moment where we had a big white board upstairs, a bunch of us were talking about different things and I think Bitcoin hit $2,000," she said, adding that "at that moment we popped a bottle of champagne and celebrated."

Whether Bitcoin or other crypto currencies are flying high or sliding backward, for the visitors and tenants of the Crypto Castle, it's about the game and not the score.

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Bitcoin, ethereum gurus live in 'Crypto Castle' San Francisco commune - CNBC