Rule Nr. 3: 

Submission Requirements: Games must be submitted through itch.io (Itch.io TOS) and must run in the browser. All game engines are allowed! You may not participate by submitting third party developments.

Does that mean in the end, no unreal projects are allowed?

Since HTML5/WebGL-Support isnt supported anymore after UE4.24.

I know there is PixelStreaming, but yeah.

Hi LittleVoid, 

we are aware of the issue with Unreal, especially since HTML5/WebGL support is no longer available after UE4.24.

For future jams, we will reconsider this rule! Some teams have already mentioned that they might work with older Unreal versions in this case.