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EU fines Apple $568m for deterring third-party payment methods on App Store
(www.gamesindustry.biz)
This is a most excellent place for technology news and articles.
The dev made money from at least the iOS, Android and Steam Greenlight versions. They also offered it for free.
https://www.giantbomb.com/articles/mcpixel-embraced-piracy-lived-to-tell-the-tale/1100-4366/
I was slightly wrong about the order. I was actually talking about Black Mesa, which was in the same initial batch of 10 games.