Portal 2

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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Is it okay to use Portal Reloaded assets for a map I am making
Hello, so I was planning to make a Portal Reloaded chamber, but since Portal Reloaded doesn't have a workshop. I was planning to submit it here. But isn't there copywrite preventing me from doing that? If there is copywrite, how would I contact the Portal Reloaded developers to ask for permission to use there assets? Also side note this has already been done by Darya Santehnik with there maps: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2989148658