A more attainable goal I have is to make enough money to justify going down from 5 to 4 days a week at my regular job. But even that seems extremely hard.
Heh, I've had an even more modest goal of making 100$ per month through my gamedev to fuel (or limit?) my music software purchasing addiction. Parasite is in Early Access and from the initial good bump in sales it now fell down to less that 100$ that you need for Steam to bother sending you the money. It took 7 months for the profits to dry up and it looks like Steam steadily decreased the traffic to my game page roughly by half with each passing month. Now I need to finish the game and get another bump of sales (at least they promised they will do a proper launch visibility round). But it looks to me that if you're like me, a nobody with a hobby, there's no reason
not to release your game in EA just for that second bump. The caveat is that your game has to be playable and look like something that is close to completion, I think. You can't just sell a page with nothing.
Recently I've read an article from an indie dev/marketer guy who compiled his research on game profits into gamedev profit tiers. Something like <5k$, 5-10k$, >10k$ and >250k$ for the lifetime value. <5k$ is just shit that you can't live off, 10k$ in a year or two is where you can live but you have to be frugal, but why 250k$? Valve said that when they send traffic to games they look on how much money that game made. And his research has led him to believe that 250k$ is the magical number. This is the time when Valve's algorithm decides, ok, you're a
good game and puts you on their good list and visits to the game page becomes infinite and plentiful like manna from heaven, since they start putting you on all the important parts of their main page from time to time.
Now that revelation and my own experience has led me to the sad conclusion that there is literally
zero point in updating your games past a very certain point. Valve literally
does not want you to! A new game from you will receive a guaranteed bump of traffic and sales in return for 100$ paid for the place on the platform. But an old game that you update will get nothing unless you have enough active players to see the bump in activity that might transform into DLC sales or friend sales. The only thing you'll get is that warm feeling...