Generally, when making a game using an engine, you then need to export it so that it can be run directly by your players, without needing the engine themselves. The engine's documentation should provide more details.
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I only just saw your comment about how you made the .exe, so I just redownloaded :3 I wasn't very good at it, haha. I ran straight to the bottom of the corridor first time around without checking the side passages, but it was a dead end, so I got caught x3 I always get scared if something is chasing me, so I just panic and run around like a headless chicken xD I know you said it's very unfinished, but it's a cool concept for a game, so I hope you decide to continue developing it :3