Game Jolt

Most of you know some games that were are made with unreal engine have been uploaded to a game website known as Game Jolt.
I was wondering if you were able to play those games by downloading the engine that they were made with.

No, you would need the project files from the creator to test the game inside the editor. But there’s no reason, just download it, its made with UE4 so ofc it uses the engine?