If your priority is shipping it, and it's multiplayer, then Unity 100%. I don't actually really like Unity, but it's definitely battle tested enough to ensure that you can do everything you need with it. GameMaker is a reasonable choice as well, I just wouldn't be as confident with their networking stuff. Would recommend against Godot. In my experience you end up spending more time fighting the engine than developing your game.

Just my personal thoughts though, others will have had different experiences.