Thank you for the encouragement about Steam! Sukima is actually my first finished game ever, so I originally saw it as just a small jam project. Your comment really makes me think more seriously about its future.
I do have a couple of ideas I'd love to explore. One is deepening the atmosphere with a subtle day-night cycle, so there's a quiet sense of time passing. Another is introducing light weather effects. For example, rain could make the tops of the stages slightly slippery, adding a gentle layer of challenge. If I go that route, I would rebalance the platform surface areas to keep things fair.
In any case, thank you again for the support. It genuinely motivates me to keep refining it!