You either need to be able to fire people, need to be able to get investors, or need to be able to go overbudget on games. Once your employees' salaries start exceeding your income you're stuck spiralling down into negative budget wherein you can't publish anything. I've got six games out and am at -$48,000 and counting. For about a couple of days I was making positive progress, but not fast enough to be able to publish a small scale game before it started going negative. And employee salaries seem too high to begin with - $1500 per day for a basic worker is about 10x too much.
Got stuck with no way to get funds necessary to get equipment upgrade to continue because a key (and the only remaining minerals on the levels I can access) was behind blocks I can't dig.
Alright, after fighting Mr. Trollface I have decided to rate this game 1/5. That was just ridiculously annoying, and while such a descriptor may be appropriate due to the meme being referenced it certainly wasn't fun.