Pretty funny game, Nend.io ("Never ENDing game - Infinite Game"). In fact, you are playing a simulation of life.
You, like in everyday life, have needs: eat, sleep, money, go to the toilet, clothes, and everything else that you need in your everyday life.
Over time, your resources are spent, and they need to be replenished. Your task, as in ordinary life - to become rich.
You will not only have new skills, but you will be able to buy new premises.