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Unity backtracks, no runtime fee for sub $1mil or for games on current/old versions
(blog.unity.com)
This is a most excellent place for technology news and articles.
These are a lot more reasonable terms, but remember that the people who designed the outrageous policy is still very much in charge at that company. They'll keep pushing to see what they can get away with, they just fucked up by pushing too much at once instead of building up to it.
Or push too much so when they "backtrack" they still get some of what they wanted.