One time when I was just learning what a motherboard was, I wanted to see if I could fit a PCI-e xSomethin inside an M.2 SATA port :-)
Don't do it. I still don't know what I was thinking.
I think I was 16 at the time. So I had the bravado of a dumb kid mixed with this mental illness called curiosity.

Cruelty Squad was made with Godot and made over a million dollars. That's probably the biggest hit from an indie dev. Sonic Colors Ultimate was made by SEGA and released on consoles and that was (partially) made with Godot. Brotato was also fairly popular. Cassette Beasts just released, but looks high quality and on consoles, so could be a big game. You can see some of the better ones here: https://godotengine.org/showcase/

2 years later

Buckshot Roulette was popular for a while on youtube and it was made in godot

5 days later

Halls of torment, great game, you can get it for free on steam - prelude version.. honestly i could not find whats different from the paid version, but i paid for the full version.. you can import free version progress into the paid version.. try it out if you have chance..

they use pre rendered 3D characters as sprites.. looks awsome.. has that diablo2 look and feel, kinda boring in other parts but great fun for few hours..

I guess Buckshot Roulette is popular, You'll see it's made in Godot 4.1 if you run it from CMD

don't know if anyone said this or not (kinda skimmed)... but Godot doesn't necessarily need Vulcan... in compatibility mode it uses GLES. my laptop from 2012 doesn't support Vulcan but everything i did there i did in compatibility mode and it all worked just fine. great tool to learn Godot and get your feet wet with game development.

As for popular Godot "GAMES":
I know the TESLA app uses the Godot engine... that is seemingly pretty popular.... not a game but i figured worth a mention.

https://medium.com/@imam.auliya.nurakhman/how-tesla-combine-react-native-and-godot-engine-for-their-app-a-simple-breakdown-6eec989d8dd6#:~:text=Tesla%20utilizes%20the%20React%20Native,vehicles%2C%20enhancing%20the%20user%20experience.