Unzip the mod and move the folder named game into your main Summertime Saga installation folder (e.g., SummertimeSaga-0-20-16-pc ). Overwrite files if prompted.
Modifying Ren'Py-based games can sometimes lead to stability issues. Here is how to fix the most common errors. Black Screen on Launch summertime saga lains mod pack repack
This is typically caused by old cache files. Clear your game cache directory and restart the application. Unzip the mod and move the folder named