Games like Iron Graves
Games like Iron Graves include Plague Inc: Evolved, Kenshi, Quasimorph, Dead Age, and Mount & Blade II: Bannerlord. We matched them by the tags players give Iron Graves on Steam (Simulation, Strategy RPG, Adventure, Roguelike, and Strategy): closest matches first, and among equally close ones the better-known games.

Plague Inc: Evolved
Shared: Simulation · Strategy · Singleplayer

Kenshi
Shared: Strategy RPG · Simulation · Post-apocalyptic

Quasimorph
Shared: Strategy · Roguelike · Turn-Based Combat

Dead Age
Shared: Strategy · Adventure · Simulation

Mount & Blade II: Bannerlord
Shared: Strategy · Simulation · Singleplayer

HighFleet
Shared: Strategy · Singleplayer · Post-apocalyptic

STAR WARS Zero Company™
Shared: Strategy · Singleplayer · Turn-Based Combat

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · Adventure

This War of Mine
Shared: Simulation · Strategy · Singleplayer

The Scroll of Taiwu : Beyond The Dome
Shared: Strategy · Simulation · Adventure

Sultan's Game
Shared: Simulation · Strategy · Singleplayer

The Long Dark
Shared: Adventure · Simulation · Singleplayer

Home Behind 2
Shared: Adventure · Strategy · Simulation

Dome Keeper
Shared: Roguelike · Post-apocalyptic · Singleplayer

Fallout 4
Shared: Post-apocalyptic · Adventure · Singleplayer

FTL: Faster Than Light
Shared: Roguelike · Strategy · Singleplayer

龙胤立志传
Shared: Simulation · Strategy RPG · Turn-Based Combat

House Flipper
Shared: Simulation · Singleplayer · Adventure

The Forest
Shared: Adventure · Survival Horror · Open World

Streamer Life Simulator
Shared: Simulation · Singleplayer · Adventure

Home Behind
Shared: Adventure · Simulation · Strategy

Slime Rancher
Shared: Adventure · Singleplayer · Simulation

Total War: WARHAMMER
Shared: Simulation · Strategy · Strategy RPG

觅长生
Shared: Strategy · Simulation · Strategy RPG