I played this game for a while, and I thought it was pretty fun! But for some reason, the store wasn't working, and I couldn't buy anything. I'd click on the price, and nothing happened, even though I had enough money. The game also doesn't save anything, so you have to start from scratch every time. By the way, the browser version of the game doesn't require the exit button in the menu. You can't close the browser tab under any circumstances.
instead of functioning like a regular shop system, this game’s shop is like a research tree.. i think that might be the problem since instead of buying whichever item you want you have to follow the research tree. i might consider removing that feature though or adding like a tutorial to the game
also i have added a saving feature, which i will release in the next update.
thanks for the reply :)