Looks like it was done twice in 2010 (https://www.go-hero.net/jam/10/languages/Piet https://www.go-hero.net/jam/10/languages/Piet) and once in 2015 (by me!) (ht

Looks like it was done twice in 2010 (https://www.go-hero.net/jam/10/languages/Piet https://www.go-hero.net/jam/10/languages/Piet) and once in 2015 (by me!) (https://www.go-hero.net/jam/15/languages/Piet https://www.go-hero.net/jam/15/languages/Piet) I sorta cheated with an assembler (https://github.com/sl236/Piet https://github.com/sl236/Piet) though.