Use a compatible web-based Kairosoft editor or open the file in a text editor if it uses unencrypted JSON formatting.
There is no single "universal" Kairosoft save game editor because save formats vary between their older titles and modern Steam releases kairosoft save game editor
Steam is the safest and easiest platform for save editing because you have full, unrestricted access to your files. Use a compatible web-based Kairosoft editor or open