In a humorous speech on the Monday of the Independent Games Summit, Kloonigames' Petri Purho talked about what he learned in creating IGF 2008 Grand Prize Winner Crayon Physics Deluxe, stressing the importance of rapid prototyping in its genesis.
As he noted in the speech, "doing prototypes really worked out well for me," and it also gave him a hint towards which of his seven-day-created Kloonigames freeware games would break out, based on download counts.
He averaged 2,000-3,000 downloads of his previous prototypes, until the Crayon Physics prototype did around 25,000 free downloads in one month, and increased again to 250,000 when his YouTube demonstration of the game became incredibly popular.
