Do you want to be like Cairo's pixel style, or do you just simulate business? If it is the former, it is really not too much, and if it is the latter, it is too much.

a city island series.

It is similar to EA's city simulation game, but it is not as detailed as the city simulation. Memory usage is not large, one is only about 5MB.

bus, building, train and subway simulation series.

It is to simulate how to drive these cars, or if you have a game of such a construction company, it is really difficult to adapt to the operation on the mobile phone, but the gameplay is very good, some are Chinese, some are pure English. The memory is basically around 5-1MB, and the construction simulation is within 3MB,

Sanjiayuan series.

The medieval urban construction game is very interesting. Mining, logging, ploughing, making jewelry and clothes, etc., are very rich in gameplay. Memory is less than 1MB.

four sims free edition (also known as free life).

The game developed by EA's mobile phone is definitely not comparable to the pc version in terms of playability and gameplay, which is also due to the limitation of the platform. However, its degree of freedom is still worthy of recognition. Creating villains can simply pinch their faces, match their clothes, arrange their work and family, take care of children, solve their daily lives and decorate their houses ... There is also an imperfect social system, which is very interesting on the mobile phone side in general.

five beings.

Independent games independently developed by Border Game Studio draw lessons from Sims, but also have their own unique ideas. The game is still in the process of perfecting step by step, and the memory is about 5MB.

my cafe.

Very good business game. You can cook delicious food in your own coffee shop, listen to the gossip and suggestions of visiting guests, the waiter can change clothes, and the coffee shop can change the decoration mode and expand. The memory requirement is about 67MB, but it will be updated infrequently. It is recommended to reserve some memory.

seven cooking enthusiasts.

A business game that includes different restaurants and various cuisines. It can decorate restaurants and upgrade tableware to make delicious food. The memory demand is not small, because after the restaurant is gradually upgraded, the memory will be close to 5MB or even larger.

Eight Central Hospitals 2 Healing Time.

this is actually a series with 1, but only pc can play it. Another series of the same company is delicious restaurant. These two series are very particular about stories, and the plots are very good. The memory requirement is about 3MB.

note: some of these games will require Google framework.