would anyone be interested in talking here and giving me feedback to use this project to build a game that people would pay for?

Can't speak for all gamers, personally I plan to offer my games as webversion and for free only (probably because I don't use apps, so developing just converts time than currency). Maybe some players expect a rather HD-graphical game like "Life Is Strange" or "Detroit: Becoming Human", etc. while I'd prefer to get interactive scenes, possible time-loops and a unique story combined with awesome screenshots, banner or lets-play versions on youtube or twitch-platform.

Maybe there are also players who tend to like text-riddles or quests, sudoku or similar stuff instead? I'd head for getting the storylines based on something that don't exist yet. If it's about designing something virtually, could be building stuff with bricks / re-decorating rooms / levelling or adding armor / hatching animals / etc.