Grindstone By: Capybara Games Grindstone is an Apple Arcade match-three game from Capybara that works similarly to Dungeon Raid. You need to draw through hordes of enemies of the same color to attack them and create grindstones. I have a walkthrough for the main campaign here, but this guide should help you with the new area called Guano Grotto. Feel free to ask for extra help in the comments section. Walkthrough: First,…