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Welcome to "The Butterfly Effect"

TBE is a Physics Game like "The Incredible Machine".

It is currently in alpha and has actually been of alpha quality for a few years, because development has stalled. With some new interest, we're going to revive TBE, but on github. Indeed, we are abandoning sourceforge. Not just because of the recent malware riot, but also because SF has been less than hospitable for us - amongst others they have removed our entire bug history and milestone planning a while ago.