Hello! Excellent game! I love the idea of a rap sim and it's implemented pretty well. A little quick to finish but as expected for a prototype. You're definitely on to something. Here's some feedback:
1. The pacing needs some balancing. It's a little easy to get everything in the shop even with the weekly upkeeps I never really felt in danger financially. Also I never got robbed although I got standard security pretty early on. These are all great ideas but it should feel a bit more punishing at first or at least be a looming threat until you get out of the early stages. Also once you get a few viral songs and go on tour it's pretty much over. It should probably have higher requirements to go on tour given the huge benefit it gives you.
2. It would be great to have the option to release full albums and maybe a deeper song creation system i.e. - Name, Tempo, Beat-type (trap, drill, etc.).
3. Need some more stuff to buy when making millions. It would be cool to have luxury items (watches, sneakers, jewelry, etc). Also being able to buy yachts, private jets, etc.
4. End game idea: it would be dope if we could own a record label and be able to sign/manage upcoming artists. pretty ambitious but it could really open up the end game. It could also introduce a new financial risk - you must own a building, buy studios + furniture, hire staff + producers, etc. If artists flop or fall off it could be a negative or if they go viral all artists gain a small boost (just some ideas).
Overall, it's a solid framework for what could be a really unique simcremental game and I honestly love it! Excited to see a full release of this game and I have a feeling many others would give this game a try if on steam or mobile. I'll be following to see what happens! Cheers!