Quoting a post from the lead dev of Rust-the-game entitled "Unity can get fucked": https://garry.net/posts/unity-can-get-fucked https://garry.net/posts/unity-ca

Quoting a post from the lead dev of Rust-the-game entitled "Unity can get fucked": https://garry.net/posts/unity-can-get-fucked https://garry.net/posts/unity-can-get-fucked "Let me be clear.. the cost isn't a big issue to us. If everything worked out, the tracking was flawless and it was 10p per sale, no biggy really. If that's what it costs, then that's what it costs. But that's not why we're furious. It hurts because we didn't agree to this. We used the engine because you pay up front and then ship your product. We weren't told this was going to happen. We weren't warned. We weren't consulted. We have spent 10 years making Rust on Unity's engine. We've paid them every year. And now they changed the rules. [...] Let's not make the same mistake again, Rust 2 definitely won't be a Unity game."