Every year in the lead up to the Game Developers Conference, a game jam is held on a 52-hour train ride that goes from Chicago to San Francisco. The jam, affectionately called Train Jam, is something I look forward to following along with on Twitter as the cross-country train ride is something I've always wanted to do and some really neat game ideas come out of the entries.
via destructoid https://www.destructoid.com/play-some-games-that-were-made-on-a-train-496154.phtml