That's fine, but there are a ton of non pixel art indie games: Hollow Knight, Spiritfarer, Hades (+ the other games by SuperGiant), Death's Door, A Hat in Time, Outer Wilds, GRIS, Bramble The Mountain King... I could add at least 10 more great games to this list. But indie games exist in all styles.
Edit: Oops, I missed these were supposed to be open source lol, sorry!
There are quite a few: Unreal has it, Construct 3, Clickteam Fusion, RPG Maker if you want to make RPGs,I think GameMaker Studio as well... There are lots that you can find with a simple search on the internet.
I never really used them though, since trying to do anything more complicated usually ends up being harder in Visual Languages. In the end, the logic and thinking is the same as with text-based coding, it just has some more syntax that you have to memorize (which sounds intimidating, but isn't that hard).
Godot is honestly great and the scripting language is pretty simple even as a beginner, so maybe you should give it another try.
For me it was the other way around, I liked the combat in 2 a lot more, because 1 felt way more random. In DOS2, status effects are more predictable, in 1 you can get really lucky or unlucky with status effects hitting or missing, leading to more reloading and "save-scumming" (or maybe we were just bad lol)
That's fine, but there are a ton of non pixel art indie games: Hollow Knight, Spiritfarer, Hades (+ the other games by SuperGiant), Death's Door, A Hat in Time, Outer Wilds, GRIS, Bramble The Mountain King... I could add at least 10 more great games to this list. But indie games exist in all styles.