Installs by Unity's own admission, only count each new machine, which I guess can be faked by malicious entities who want to hurt certain developers. This also

Installs by Unity's own admission, only count each new machine, which I guess can be faked by malicious entities who want to hurt certain developers. This also counts pirate installs, but Unity claims to have a way to discern what is and isn't a pirate install. Honestly, this is mostly going to hurt indie devs who make it, but aren't quite in the same successes bracket as a game like Cities: Skylines, Hearthstone, Rimworld. And also F2P games, especially mobile ones, where Whales can easily spend $200k or $1mil, but you have millions of installs of people just trying the free game and deleting it, or installing it on multiple devices. The Runtime fee can easily exceed Unreal Engine's own 5% flat Royalty Fee by a fair margin (easily 10%) depending on the money you ask for and method of distribution, for example, you won't want to give out copies or discount the game as much after meeting the requirements.