There are three versions of the game available.

The free version is designated as V0.5f. This version has some scenes that are not accessible and is available at no cost. 

The paid version is identified by the letter "s," as in V0.5s.

This version includes all previously released cutscenes. For a one dollars.

The paid version with 2k picture quality ends with an "h," as in V0.5h. 

This version offers an exceptionally high image quality, ensuring clear details for an enhanced gaming experience. The images require a significant amount of rendering to ensure clarity and detail. 

This version is available for purchase at the price of 3 dollars.