“Roguecraft was supposed to take about 6 months to develop and ended up taking 2 years.”
Badger Punch Games is two people, programmer Ricki Sickenger and artist Henning Ludvigsen, who met in an Amiga demo group in the early 1990s. They work inside a 32-color palette and lean on the blitter and copper coprocessors. Rooms get built in Tiled and converted to assembly by script. Six months became two years on a platform that hasn’t changed in decades, so your sprint estimate never stood a chance.