Do not attempt to run the original CD version. The GOG release ( Disciples II Gold ) is pre-patched for modern systems, includes anti-crash fixes, and bundles all four campaigns:
If you are looking for the narrative "story" of the game itself, it is a grim dark-fantasy epic set in the world of Nevendaar, taking place ten years after the "First Great War". disciples 2 android
This gives full PC experience on Android without emulation issues. Do not attempt to run the original CD version