Unreal Engine is a pretty big and successful one. In the cryptocurrency space: Metamask[1], and the upcoming Uniswap V3[2]. Of course, given the choice, myself

Unreal Engine is a pretty big and successful one. In the cryptocurrency space: Metamask[1], and the upcoming Uniswap V3[2]. Of course, given the choice, myself included, users prefer the more permissive license. The question is what strikes the right balance of incentives for developers and respect of users. [1]: https://github.com/MetaMask/metamask-extension/ https://github.com/MetaMask/metamask-extension/ [2]: https://uniswap.org/blog/uniswap-v3/ https://uniswap.org/blog/uniswap-v3/