In the game 2048 Defense, you have to defend your castle from waves of dangerous enemies. Don't let them inside your walls!
By combining numbers that are the same, you can "evolve" them to make you stronger and better at shooting. You can also fire red explosive or blue freezing bullets and unlock unique towers to get through dozens of levels and put your math skills to the test. Enjoy the beautiful graphics, don't give up when things get hard, and show that you're smart enough to get through all the levels and win the game in the end.
Have fun and good luck!