My new favorite game on my BlackBerry Q10 is Little 3 Kingdoms by Funkoi. They just released Little 3 Kingdoms after hitting it out of the park with Alpha Zero for BlackBerry 10. Little 3 Kingdoms is very beautiful side scrolling castle defense strategy game where you defend your castle from the usurpers forces. There are 100 levels and a wide range of units, heroes, and upgrades along with achievements for you to attain.
Check out Little 3 Kingdoms for a very reasonable $2.99 in BlackBerry World. You can check out the iOS trailer below to get an idea of gameplay: