A free program for Android, by StarUnion.

If you are looking for an easy and fun way to test your skills, you should definitely check out Beast Lord: The New Land.

Beast Lord: The New Land is a thrilling strategy game where you must establish and expand your territory, summon powerful beasts, mutate them for added strength, and form alliances with others. Defend against lurking dangers, compete for resources, and conquer the wilderness. Join the adventure now!

The gameplay is really simple, and you will be able to complete the missions in a short period of time. If you are interested in playing with other players, there is also the possibility of forming a team, where you can join other players, form a base, and fight against other players.