Any pure code recommendation? I don't want to use one with a UI like Godot, Unity, etc. Raylib is too low level. Is there, anything in between that I can use to develop games and also export them to web or have them just be web based already

Also, in the previous Game Off Jam, they were Game Engine recommendations, add them

You can try Phaser, this is a pure JavaScript engine, you have to write all the code.

There are Solar2d, Gideros Mobile and Love2d, all of them use Lua code to create the game and they can export to HTML5.

You also have libgdx and mini2Dx, both use Java to code the game.

There are some engines that use C# like Wave Engine, Red Flat Ball, Duality, etc, but I don't know a lot about them.

You can take a look at HaxeFlixel and even Heaps Engine, they use Haxe language and you can port to HTML5 too.

I hope this can help you. Let me know which one of these you like more.

We do have engine recommendations as well - they are listed on the Jam's main Itch page, at the bottom ("Engines").