Games like Space City - Build Your Empire
Games like Space City - Build Your Empire include Factorio, shapez, Satisfactory, This War of Mine, and XCOM 2. We matched them by the tags players give Space City - Build Your Empire on Steam (Crafting, Resource Management, Turn-Based Tactics, Grand Strategy, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Factorio
Shared: Resource Management · Crafting · Base Building

shapez
Shared: Resource Management · Crafting · Base Building

Satisfactory
Shared: Crafting · Resource Management · Base Building

This War of Mine
Shared: Singleplayer · Crafting · Resource Management

XCOM 2
Shared: Turn-Based Tactics · Tactical · Singleplayer

Battle Brothers
Shared: Turn-Based Tactics · Grand Strategy · Tactical

STAR WARS Zero Company™
Shared: Turn-Based Tactics · Singleplayer · Tactical

Oxygen Not Included
Shared: Resource Management · Singleplayer · Base Building

The Alters
Shared: Resource Management · Base Building · Crafting

Sid Meier’s Civilization® VI
Shared: Grand Strategy · Singleplayer · Strategy

MENACE
Shared: Turn-Based Tactics · Grand Strategy · Tactical

Total War: EMPIRE – Definitive Edition
Shared: Grand Strategy · Strategy · Tactical

Hearts of Iron IV
Shared: Grand Strategy · Strategy · Singleplayer

XCOM: Enemy Unknown
Shared: Tactical · Singleplayer · Turn-Based Tactics

Manor Lords
Shared: Grand Strategy · Strategy · Resource Management

Total War: ROME II - Emperor Edition
Shared: Grand Strategy · Strategy · Tactical

ROMANCE OF THE THREE KINGDOMS XIV
Shared: Turn-Based Tactics · Grand Strategy · Military

Age of Mythology: Retold
Shared: Resource Management · Base Building · Strategy

Potion Craft: Alchemist Simulator
Shared: Crafting · Singleplayer · Resource Management

Ara History Untold: Anniversary Edition
Shared: Grand Strategy · Resource Management · Singleplayer

Total War: NAPOLEON – Definitive Edition
Shared: Grand Strategy · Strategy · Tactical

Xenonauts
Shared: Turn-Based Tactics · Grand Strategy · Singleplayer

Sid Meier's Civilization VII
Shared: Grand Strategy · Strategy · Turn-Based Tactics

Against the Storm
Shared: Grand Strategy · Resource Management · Strategy