halley VS awesome-cpp

https://github.com/amzeratul/halley if you want 2D

Given that the game is being written with their in-house engine called halley which supports consoles (was used for Wargroove), the answer is most likely yes.

Halley Engine - C++ Game engine used in Starbound, Wargroove and the Upcoming Witchbrook

It was originally in another programming language called Rust, but the programmer that knew that program left. Amzertul made an amazing engine with Wargroove called halley and we felt that it would be perfect for WB. Focus was shifted to Wargroove for a while, and then witchbrook started to be recoded. At this time the artstyle was changed to isometric.

Not pixpil, but our own engine which we use to make pixel art titles is open source.

We used my own game engine (Halley) for both Wargroove & Witchbrook, no regrets at all! It's definitely a lot of work, but owning the entire stack gives you a lot of advantages. I posted a Twitter thread with my thoughts on the pros and cons a while ago, if you're interested.

Regardé: Awesome-CPP

Here's a list of (globally) well-written C++ libraries: https://github.com/fffaraz/awesome-cpp

Here is a list of free online C/C++ books: https://github.com/fffaraz/awesome-cpp/blob/master/books.md

If you need some library you can try searching thjs list https://github.com/fffaraz/awesome-cpp

Here's a big list of a bunch of high quality C++ libraries and codebases. Hopefully you can find something in your areas of interest and can dive into it.

Could you detail what exact tooling you are talking about ?

Like, this static analyzer looks interesting but 5 years ago clang --analyze had no trouble producing me a nice html indicating the 27 steps across 6 functions that lead to a pointer being dereferenced after being deleted. Tooling is there but it seems that pretty much no one is aware of it - see e.g. this: https://github.com/cpp-best-practices/cppbestpractices/blob/... or this: https://github.com/fffaraz/awesome-cpp for a quick look at what exists.