I think most of the commenters feel like there isnt "enough to do"... Granted its an IDLE game, but whatever. If there were different things to upgrade, like armor pieces, it might generate the illusion of doing more things, and I don't think you'd have to alter the mechanics much. That said, its a fairly interactive Idle, since you can't get so far ahead in strength or horde potions to be able to walk away and still be alive when you come back. So there is both too much, and not enough, to do

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I think the success of AdVenture Capitalist on Kong is very telling. Its one of the most played games right now. There is almost constantly something to click on for several hours, and then it slows down a bit and you can click things every few hours, then days, etc. Lots of bars zipping across the screen. The core mechanic is simply waiting for the money counter up top and click to buy more stores. Its so basic, but for whatever reason people love it.
Otherwise, I cringe at the idea of existing online such as your game. People expect a AAA gaming experience for free, and obviously don't understand that a lot of the popular games on the site are made by people,and teams, getting a paycheck.
Thanks for the game. I'm going to attempt to make it through 9001 at least once, see how the end game goes.