Still an enormous nope. Both for the developers and the users. How do you check if a game has already been installed once? What data are you gonna steal to check if it has been installed already?
They'd have to get steam to tell them each time a game was downloaded to a different device so they could invoice. And apple.. and google... and random websites..
Or they make the client phone home each time it's run, which is going to cause its own mess of issues (firewalls, that kind of thing.. some of the corporate firewalls we run our app behind would raise lots of alarm bells at something like that).
The announcement says they'll still charge per device, so I'd guess they either hash your hardware and send it over or leave some garbage data in your registry on uninstall.
Either way, not a solution to the problem at all. In that even with a single per-user fee this is still bad.
That still wouldn't prevent malicious driving up of the install count. You wouldn't even need to actually install it, you could just figure out how they communicate a new install and then either block it if you want to say "fuck unity" or send fake ones to say "fuck this dev using unity".
And how will it work for devs that think they can handle it but then change their minds and drop unity but some older versions of their installers are still out there?
All the debate about the hypothetical hostile uses of the scheme are... more valid than I'd like, given that it's clear they hadn't thought about any of them, but it's missing the forest for the trees.
The forest is that even if this worked as intended it'd be a dealbreaker. That's the forest.
Lol get this, I don't know if I heard right, but the install count was based on their own telemetry added to the game. SO if someone pirated your game, it could still count as an install.
Kerbal Space Program, an awesome game that simulates the construction of space vehicles and the physics of an entire solar system hyper-realistically, was developed in Unity. I am waiting on their dev team's word on this.
I know KSP. I also know KSP 2 which has the same physics bugs and limitations KSP 1 had with Unity. I know there are many "proper" games made in Unity but if the Unity company can detect your customers installing the game it is a huge red privacy flag.