I think it has two scripting languages, C# and Unityscript which seems to be a quasi-javascript. I don't know about Unityscript, I haven't looked at any vid tutorials on it. I'm more into C based languages, and what I do know is that they are using a dated version of C# about 5yrs old. Not a bad thing though, only a poo-poo for AAA's looking for middle-ware development w/o limitation, which for the money they'd go with UE4 or something like that obviously.
Even though it's using older C#, it does have integration with MS
visual studio. I haven't tried it yet, I still need to reinstall VS after a wipe. I'm just at the point of reading a book I picked up and watching some various youtube tutorials like this one on
2D RPG (a series about 90 minutes).
I've been screwing around with app game kit 2 for some months, targeting Android. But it's a pain in the butt, especially with limited documentation. I was amazed how vast the resources have become with Unity compared to a few years back last I looked. A lot of people are using it now I guess.
You've played TLD? I know a few that post here have. They started that for ipad it was I think. One of those i's. They hit the limit though, moved to larger systems. Obvious design target was for the slower ipad, using the snowy setting and all. They have improved the shaders etc, it still looks great, especially walking through the forest with headphones on, you hang on every noise very immersive. They plan to add some green zones next year I think the dev road map said. That will probably crank up the detail like you are talking about. Maybe not this much in real-time
CGI Animated Short & Tech Demo: "The Blacksmith" - by Unity Technologies but it seems to have good potential of real-time rendering for gaming etc.