Harmony Keeper

You should see what upgrading your units ingame does. Just says what lvl it is not the dmg. fire rate, and so on. Add that please.

My first reaction was to complain that the stars being so much smaller than the planets made no sense at all. Then it occurred to me that I was playing a game in which a cute lovecraftian space monster magically summoned semi-sentient space pistols to protect it while nomming on planets to preserve some odd celestial harmony. Suddenly, realism was a lesser concern.

It would be great to have a clock for the "Destroy boss in 1 minute"-like challenges.

Why does going to the summoning menu restart the eating timer?

Having the last planet take forever to consume is just...boring. It doesn't add suspense or show that the last planet was the best, it just feels poorly planned. Other than that simple little thing, great job!