Hi, i'm looking for a free game engine, like a visual novel one, so I can make my submission for a jam. Just email silverbrnd@gmail.com with your answer and a link please, thanks.

You don't want people answering here, where others can benefit from the answer too? Anyway, try Ren'Py first.

There seem to be an awful lot of newbies who ask this same question. If you're a complete noob to game development, just choose a well known one; Unity, Unreal or Godot are solid choices because there are lots of resources online. If you're more experienced, just use whatever engine you were using before - unless it has an obvious limitation that will make your game harder to create - don't switch engines unless the current one doesn't do something that you need it to do. If you do need to switch engines, just go with one that's popular - normally they are popular for a reason.

edit: fix spelling