go to the extracted folder and there will be 3 folders with game assets and 3 files: executable(the game), python file(game code) and sh file(also code). you need to chose the executable/application file like the one with the ren py(the vn engine) mascot girl. if you don't have the exe file maybe your antivirus thought it was sus and ate it, that happens sometimes... go check the sandbox/quarantine section maybe it's in there or try downloading and extracting the game again