A bit of self promotion: http://froukepc.dhs.org/rudl/ :) Most of the processing happens in the library I wrapped (SDL), not Ruby itself. However, things like drawing maps depend heavily on loops. Those are slow, but I'm going to write some C helpers for that for RUDL 0.8. Try the Crapola sample, it runs perfectly on my 1GHz machine. (The Pong sample is broken on many machines due to a stupid bug that is already fixed for 0.8) >Has anyone ever written a video game in ruby, of similar technological >complexity to e.g. a typical Super Nintendo game? > >Did it run fast enough? En "kat" schrijf je niet met een "o"!