I think this game could be something really cool!
The aesthetics are really great, and I think merge mechanics are always fun. I'd be curious to know if any other mechanics are planned; it seems like there's not much of a reason to walk around or do anything with the player character when you can drag and merge all of the objects with your mouse.
I think some nice chill music and simple sound effects would go a LONG way in making the game feel more polished. The aesthetics are sooo good, so it would be awesome if there was audio to match.
I played the game on stream here around 2 minutes in: