One of the successful 7drl entrants this year was made in excel. If I remember correctly, one of the devs was an accountant: http://7drl.org/2013/03/16/7drl-com

One of the successful 7drl entrants this year was made in excel. If I remember correctly, one of the devs was an accountant: http://7drl.org/2013/03/16/7drl-completed-excelent-rogue/ http://7drl.org/2013/03/16/7drl-completed-excelent-rogue/