1229
This is of course not including the yearly Unity subscription, where Unity Pro costs $2,040 per seat (although they may have Enterprise pricing)
Absolutely ridiculous. Many Unity devs are saying they're switching engines on social media.
Ehhh, I doubt it. His team is currently working on Source 2 for their game S&Box. I would expect he's pretty close with Valve so he might just use Source 2 for the foreseeable future.
Why did they use Unity instead of Source 2 for Rust?
Rust was made about a decade ago, Source 2 wasn't a thing yet and there weren't many other engine options.
Yeah, rust released end of 2013 and valve launched source 2 for dota 2015.