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Demo won't launch, just exits immeditately

Here's the error code from the logs

2026-02-23 18:18:53 UTC

Windows-11-10.0.29531-SP0

Ren'Py 8.5.2.26010301

Heatwave: Sam's Stay DEMO

Built at 2026-02-23 17:50:16 UTC

Early init took 28 ms

Loading error handling took 21 ms

Full traceback:

  File "renpy/bootstrap.py", line 401, in bootstrap

    renpy.main.main()

    ~~~~~~~~~~~~~~~^^

  File "renpy/main.py", line 412, in main

    renpy.game.script.load_script()  # sets renpy.game.script.

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^                           

  File "renpy/script.py", line 456, in load_script

    self.load_appropriate_file(".rpyc", ["_ren.py", ".rpy"], dir, fn, initcode)

    ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "renpy/script.py", line 1002, in load_appropriate_file

    raise Exception(

        "{} conflict, and can't exist in the same game.".format(" and ".join(i[1] for i in rpyfns))

    )

Exception: E:\Itch\heatwave-sams-stay-demo\Heatwave_Demo-win/renpy/common/00layeredimage_ren.py and E:\Itch\heatwave-sams-stay-demo\Heatwave_Demo-win/renpy/common/00layeredimage.rpy conflict, and can't exist in the same game.

While loading the script.

Exception: E:\Itch\heatwave-sams-stay-demo\Heatwave_Demo-win/renpy/common/00layeredimage_ren.py and E:\Itch\heatwave-sams-stay-demo\Heatwave_Demo-win/renpy/common/00layeredimage.rpy conflict, and can't exist in the same game.

Can you try re-downloading, just uploaded a fix.

(+1)

Just FYI: Uninstalling the old demo and reinstalling the new one, fixed the error. Apparently the old left over files when updating is the conflict. So make sure you uninstall it first before installing the new demo.

(+2)

Ahyeah that makes a lot of sense, extracting over the previous files will cause problems. Thank you for highlighting that, I've now added a message about that in the download instructions!