Absolutely! Free patch in the future. And that's GREAT, glad you enjoy it! :)— Fabraz (@Fabrazz) August 3, 2017
Nothing bad with some free DLC! If you haven't been paying attention to Slime-san, you really should. It's not just a random, by the numbers platformer. It's some really fun stuff! Check out the trailer for the Blackbird's Kraken DLC below to see what I mean.