By the end of production, I expect the game to be just under 2GBs. Part of the reason the file size is so large in this demo is the use of 4k backgrounds and layered sprites, which help seamlessly pull off the dynamic animations It's actually a bit smaller than when we were using 1080p rendered sprites. Thank you for bearing with the size, and we'll try and make it as compact as possible for the final release!
The game has had such a long development period that I would like the full release to come out sometime in 2026. KC is intended to be paid, as it will features around 12-15 hours of content for a complete playthrough (from the start to the True Ending). Even if you were only to play the game once, your first route would offer around 5-7 hours, while subsequent routes would be a bit quicker due to being able to skip repeated content.