Games like Full Metal Sergeant 2
Games like Full Metal Sergeant 2 include RimWorld, Prison Architect, Teamfight Manager, Against the Storm, and Oxygen Not Included. We matched them by the tags players give Full Metal Sergeant 2 on Steam (Management, Base Building, Turn-Based Combat, Auto Battler, and Simulation): closest matches first, and among equally close ones the better-known games.

RimWorld
Shared: Base Building · Management · Strategy

Prison Architect
Shared: Base Building · Simulation · Management

Teamfight Manager
Shared: Management · Simulation · Auto Battler

Against the Storm
Shared: Base Building · Simulation · Management

Oxygen Not Included
Shared: Base Building · Management · Simulation

Gladiator Guild Manager
Shared: Management · Auto Battler · Strategy

Manor Lords
Shared: Base Building · Simulation · Management

Mewgenics
Shared: Roguelite · Turn-Based Combat · Turn-Based Tactics

Game Dev Tycoon
Shared: Management · Simulation · Strategy

Xenonauts
Shared: Turn-Based Combat · Base Building · Management

This War of Mine
Shared: Base Building · Simulation · Strategy

Factorio
Shared: Base Building · Management · Strategy

DAVE THE DIVER
Shared: Management · Pixel Graphics · Simulation

Schedule I
Shared: Management · Simulation · Base Building

Luck be a Landlord
Shared: Roguelite · Strategy · Simulation

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

Empires of the Undergrowth
Shared: Base Building · Simulation · Strategy

Dungeons 3
Shared: Base Building · Management · Strategy

XCOM 2
Shared: Turn-Based Combat · Strategy · Turn-Based Tactics

Project Highrise
Shared: Management · Simulation · Strategy

Evil Genius 2: World Domination
Shared: Base Building · Management · Strategy

Warriors of the Nile
Shared: Turn-Based Combat · Strategy · Roguelite

Sheltered
Shared: Base Building · Management · Strategy

Sir, We Have an Orc Problem
Shared: Management · Roguelite · Base Building