Urbek: City Builder - Defend the City DLC Global Steam

Protect your city - construct military infrastructure to guard against enemy bombings. Extend your defense range so that you can expand without worry of being annihilated by bombardment.

Bombardment in stages - the attacks will become increasingly powerful, and you will need greater defenses if you do not want to lose parts of your city.
Mountains are a brand-new biome. On a cold planet, food is scarce. Give it a go! Despite the fact that snow will provide new tourism alternatives, such as ski slopes.

About the base game:

In Urbek, you will be able to build a city of your own design! Manage its natural resources, improve the quality of life of the population, and build its neighbourhoods in your own way. Breathe life into your city by building different neighbourhoods. Do you want a bohemian neighbourhood? Build bars, parks and libraries, but keep a low population density nearby. Do you want a bourgeois neighbourhood? You need parks and luxury shops.