They gave a great post-mortem at GDC one year: https://m.youtube.com/watch?v=s_I07Iq_2XM https://m.youtube.com/watch?v=s_I07Iq_2XM What was great about it is

They gave a great post-mortem at GDC one year: https://m.youtube.com/watch?v=s_I07Iq_2XM https://m.youtube.com/watch?v=s_I07Iq_2XM What was great about it is they fully admit to wanting to give up at one point. They simply couldn’t make the game fun. They stuck with it and eventually made it a great game, but it was persistence that led to success. Game designers with a lot of success get put on a pedestal and labelled “great”, but they fail as much as anyone, they just push through it. Or they throw their games away, case in point Edward McMillen and Meowgenics.