You could try the following with such games:
- Download the last Renpy version that works for you (should be
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).
- Unpack the game files and, if necessary, extract the rpa files with the latest version of
Unren
- Now move the game into your \Documents\RenPy directory
(info: actualy only the files in the \games folder are needed, but it's maybe better for you to move the whole game into it)
- now start the Renpy 7.3.5 SDK, if all went well the game should now appear in the list of projects
- now start the game in the SDK
I havn't tested it myself since I already have the 7.4 SDK, but maybe that works for you