First of all the game looks great.
I used the linux 1.3 version. When you extract the zip file you have a folder with the game data but not the start shell script or the visplayer runtime files, lib64 directory etc.
Inside the game data directory, you have another zip file that contains both the game data and the executable files to play the game.
It appears that you should be distributing the second zip file that is inside the data directory of the first zip file that you extract.
Also for me to play in English I had to manually modify the config.ini file and uncomment the Language option and set it to have English as the language so I could understand the text in the game.
It would be nice if you had language flags or something you could click on the game menu to change the language.