This app was mentioned in 2 comments, with an average of 1.50 upvotes
Depends on the quality that you're aiming for but you can do a decent game on a budget. I spent ~$500-$600 (a large chunk of that was music FYI) on my game that I did as a hobby and that was over the course of about two years (free time was scarce). I did 90% of the coding myself (but bought the code I just wanted to work right like pathfinding or the save system).
You can check out my android game and watch the video to see the type of quality you actually make as a hobbyist (well I think it's good anyway).
Additionally to help other folks like you I compiled a bunch of places that have affordable/free assets that I used to make my game (or came across in the process). I did a quick blog that you can skim if you're interested.