Counting Kingdom is an edutainment that I think is meant for kids but was still fun to play through in one sitting on a Saturday night–because I am thrilling.
As the defender of this kingdom, you must fend off number monsters by adding them up to equal the numbers in your spellbook. You use potions to change the numbers on the board, freeze lines of monsters, and clear entire rows of foes. All of this is turn-based, so you don’t have to add too quickly. You could even use a calculator if you really wanted to.
I know this all sounds incredibly simple, and that’s for a couple of reasons. One, because it is, and two, the element of chance does up the difficulty in the later levels. The basic gameplay is very easy, making it ideal for helping your kids with addition or just helping you fine-tune your basic math skills. You can even combine the numbers on your spell cards to make it so you can clear more monsters off the board at once. If you clear the entire board in one move, you get a score bonus. The difficulty comes in when some monsters appear, and you suddenly can’t cast a single spell. You can only use monsters that are in adjacent spaces, and you have no control over neither the rows they enter from and nor the order they appear. This can leave you restarting levels on a game meant for children. I had to try some of the later levels multiple times before making it through with three stars, and it was all because of the chance.
Either way it is a fun learning tool for children and great to play together. I had fun playing by myself as an adult, but I also love math, so I could be an outlier. It’s cheap on PC and even cheaper on mobile, so it’s great for a day at home or a night on the go.