A free app for Android, by WL Pixign Games.

The idea of Merge is very simple: you have a plot of land and you need to build a city. The game is free and you don’t need to spend any money. The gameplay is simple and easy to understand: you have a plot of land and you can build a city by simply merging the same-colored houses. By doing this, you can get bigger buildings. The gameplay is simple and easy to understand. You can play at your own pace and decide when to build or when to upgrade your buildings. 

To build your own city, you need to get the coins from the gameplay. These coins can be used to destroy the small houses, to buy land, or to upgrade your buildings.

Merge is a simple and fun game that can be played by anyone.