I can't for the life of me think of any ideas for games. I have no issues with development, I just don't know where to begin. I need advice for how to think of ideas or where to find ideas. I'd appreciate some tips, thanks!
Play other indie games similiar to the genre you want to make and while doing so take notes on how the mechanic works; what aspects people like most and least by also checking the reviews
Then try to make something similar by adding your own style and fixing the weak spots while still maintaining your own identity
While thinking of that also try to brainstorm new ideas or spin, maybe two similar games have different mechanics that would create a novel experience if mixed together, or perhaps you might think of something new entirely, idk
Afaik this is usually how people create quality ideas for games, they get inspired by projects they like and create their own spin of it
Game jams are very good for coming up with ideas on a quick schedule, like said in above comments.
I know that looking at games for ideas might be effective, but do not fall into the trap of creating a "Counter strike, but with less weapons and one map" (no idea if this is accurate, never played CS). If you do that, then by definition if your development was perfect then you will get a game that is worse than your model.
If you don't fall into the trap shown above, but you still manage to create a viable plan by looking at other games (like said in above comments), then well done.