A quick status update on the game's development: 

I’ve decided to use WebP and WebM formats for event-related assets (images and videos), as this significantly reduces storage usage—though I won't be using them for the background map or the 8-directional sprites (walking characters). In short, the free version of the game has a base size of at least 2–3 GB (due to the map and sprites), with the rest consisting of images and videos.
 I’ve decided to talk less and do more. I’ve set a date now: late October or early November.