Games like Final Upgrade
Games like Final Upgrade include Dyson Sphere Program, Oxygen Not Included, Factorio, The Crust, and Satisfactory. We matched them by the tags players give Final Upgrade on Steam (Automation, Space, Base Building, Building, and Resource Management): closest matches first, and among equally close ones the better-known games.

Dyson Sphere Program
Shared: Automation · Space · Base Building

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

Factorio
Shared: Automation · Base Building · Resource Management

The Crust
Shared: Space · Automation · Base Building

Satisfactory
Shared: Automation · Base Building · Building

shapez
Shared: Automation · Base Building · Resource Management

Prison Architect
Shared: Building · Base Building · Simulation

Captain of Industry
Shared: Automation · Base Building · Resource Management

Space Engineers
Shared: Space · Building · Simulation

Space Haven
Shared: Base Building · Space · Simulation

shapez 2 - Factory
Shared: Automation · Building · Management

Kerbal Space Program
Shared: Space · Simulation · Building

Cities: Skylines
Shared: Building · Simulation · Management

Mindustry
Shared: Automation · Base Building · Resource Management

RimWorld
Shared: Base Building · Management · Sandbox

Manor Lords
Shared: Base Building · Simulation · Building

Jurassic World Evolution
Shared: Building · Simulation · Management

Automation Empire
Shared: Automation · Base Building · Simulation

Jurassic World Evolution 2
Shared: Building · Simulation · Management

Planetbase
Shared: Base Building · Space · Simulation

Against the Storm
Shared: Base Building · Simulation · Building

Spacebase DF-9
Shared: Space · Base Building · Simulation

Stationeers
Shared: Automation · Base Building · Building

The Last Starship
Shared: Space · Building · Simulation