Because I would like to do cross platform C# development (using Visual Studio IDE)... but the only option I found so far was Xamarin. But Xamarin's prices are

Because I would like to do cross platform C# development (using Visual Studio IDE)... but the only option I found so far was Xamarin. But Xamarin's prices are out in the stratosphere somewhere. If they had a model like Unity it would be way better for us small developers.