Games like The Final Earth 2
Games like The Final Earth 2 include Oxygen Not Included, RimWorld, Prison Architect, Dyson Sphere Program, and Space Haven. We matched them by the tags players give The Final Earth 2 on Steam (Colony Sim, Strategy, Space, Management, and Building): closest matches first, and among equally close ones the better-known games.

Oxygen Not Included
Shared: Colony Sim · Base Building · Building

RimWorld
Shared: Colony Sim · Strategy · Base Building

Prison Architect
Shared: Colony Sim · Building · Strategy

Dyson Sphere Program
Shared: Space · Building · Base Building

Space Haven
Shared: Colony Sim · Strategy · Space

Manor Lords
Shared: Strategy · Base Building · Management

Cities: Skylines
Shared: Strategy · Management · Building

Kingdoms and Castles
Shared: Colony Sim · Management · Strategy

Against the Storm
Shared: Strategy · Building · Base Building

Planetbase
Shared: Colony Sim · Space · Strategy

Dwarf Fortress
Shared: Colony Sim · Strategy · Base Building

Empires of the Undergrowth
Shared: Strategy · Colony Sim · Base Building

Workers & Resources: Soviet Republic
Shared: Strategy · Base Building · Building

Kerbal Space Program
Shared: Space · Sandbox · Simulation

Norland
Shared: Strategy · Colony Sim · Management

The Crust
Shared: Space · Colony Sim · Base Building

Frostpunk
Shared: Strategy · Colony Sim · Building

Banished
Shared: Colony Sim · Strategy · Simulation

Stellaris
Shared: Strategy · Space · Sandbox

Cities: Skylines II
Shared: Building · Management · Strategy

Space Engineers
Shared: Space · Building · Sandbox

Foundation
Shared: Strategy · Management · Simulation

Factorio
Shared: Strategy · Base Building · Sandbox

The Last Starship
Shared: Space · Strategy · Building