Portal 2
Community maps. For science.
Welcome to Aperture Laboratories, home of the Perpetual Testing Initiative. Easily create, share and play test chambers authored by and for the Portal 2 community. Do your part! Contribute to Science!
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Containing item: "Rube Goldberg"
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Rube Goldberg machines
Collection by cyron43
Totally useless machines but they are most entertaining. :-D
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