Games like Sphere - Flying Cities
Games like Sphere - Flying Cities include Frostpunk, Banished, RimWorld, Oxygen Not Included, and IXION. We matched them by the tags players give Sphere - Flying Cities on Steam (Strategy, Survival, City Builder, Colony Sim, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Frostpunk
Shared: Survival · City Builder · Strategy

Banished
Shared: Strategy · City Builder · Colony Sim

RimWorld
Shared: Survival · Strategy · Colony Sim

Oxygen Not Included
Shared: Survival · Colony Sim · Singleplayer

IXION
Shared: Strategy · City Builder · Survival

Planetbase
Shared: City Builder · Colony Sim · Strategy

Dawn of Man
Shared: City Builder · Survival · Strategy

Space Haven
Shared: Survival · Strategy · Colony Sim

Stonehearth
Shared: City Builder · Colony Sim · Survival

Frostpunk 2
Shared: Strategy · City Builder · Survival

Life is Feudal: Forest Village
Shared: Strategy · City Builder · Colony Sim

The Universim
Shared: City Builder · Colony Sim · Survival

This War of Mine
Shared: Survival · Strategy · Singleplayer

Ostriv
Shared: Strategy · City Builder · Colony Sim

Endzone - A World Apart
Shared: Survival · Strategy · City Builder

Manor Lords
Shared: Strategy · City Builder · Colony Sim

Settlement Survival
Shared: City Builder · Survival · Colony Sim

Rise to Ruins
Shared: Strategy · City Builder · Colony Sim

Aven Colony
Shared: Strategy · City Builder · Colony Sim

They Are Billions
Shared: Strategy · Colony Sim · Survival

Going Medieval
Shared: Strategy · Colony Sim · Survival

Infection Free Zone
Shared: Strategy · City Builder · Survival

Dyson Sphere Program
Shared: Space · Sci-fi · Strategy

Kingdoms and Castles
Shared: City Builder · Colony Sim · Strategy