Try selecting "html 5 game" and setting this build as "playable in browser". You seem to have built the game as a web build, but you make people install it ... not sure if you were aware about this. It doesn't let you play it, as it is.
Hi, I have fixed the issue so the game should be playable in browser. Thank you for your comment. I'd appreciate if you would give the game a try and rate it honestly.