[2] He has previously also worked at Finnish independent video game developer studio Frozenbyte.

[3] He is best-known for the roguelite Noita and the puzzler Crayon Physics Deluxe, which won the Seumas McNally Grand Prize at the Independent Games Festival in 2008.

Most common element of these prototypes are various bonuses for successful combos and/or chain reactions.

Crayon Physics was Purho's tenth rapid game prototype and was coded in five days.

Noita, a rogue-like platformer developed by Nolla games (of which Purho is a member), was released for Windows 10 on Steam, GoG, Itch and Humble on October 15, 2020.