Slightly dated, but from their 2020 annual report: https://s26.q4cdn.com/977690160/files/doc_financials/2020/q4...

- 30% of revenue from Create Solutions (ie engine licensing) - 61% of revenue from Operate Solutions (ad platform, IAP, multiplayer, build server, VOIP, CDN, analytics) - 9% from strategic partnerships

Although they are known for catering to the indie developer crowd, a bulk of their revenue is from a relatively small number of companies (~120).

Apples tracking rules probably cut 50% off that revenue since then.

That is correct, about 2/3rds comes from "operations" (mostly ads, also some hosting services, etc)

https://www.statista.com/statistics/1270474/unity-software-r...

> the majority of their revenue comes from their in-game advertising business

So, they can open still open source it? I mean, open sourcing it would allow competitor to use the same code, but given it is not the same brand and not possible to release to consoles or stores, they could still keep most of their revenue, right?

They don’t even need to go full FOSS, they can just opt for source-availability to be a bit more competitive with Unreal Engine.

One of the things devs like about Unreal is that the entire codebase is just there to look at, so you can debug any bugs yourself and even add features to the engine that you specifically need for your game. Meanwhile Unity is a black-box blob that you can’t neither debug or extend, and all you can do is yelp in the bug tracker or the forums to get unnoticed.

The C# code is open for read access here: https://github.com/Unity-Technologies/UnityCsReference

It's interesting for some stuff, but it's not the good stuff, mainly just a lot of wrappers for C++ code you really need to know more about.

And cut on assets from their store I imagine ?

Not to mention their hosting services from the Multiplay division. Though I guess that could be swept under “related software products.”

Wouldn't that along with marketplace assets (as mentioned by another comment) fall under "other related software products" since those are used within the game engine?

Are those ever used for games not using their engine?

Absolutely it’s a populars ads network for mobile games and can be used without the unity engine

Is it common though? I’m wondering if maybe they just consider it to be a “related product” because 99.9% of the customers are Unity engine users.

I don’t know any actual numbers

Yes any mobile games (be it made by unity or other engine) that display ads most probably have unity ads in their waterfall it is very popular

Duolingo uses it for their in app ads.