Free games like Supreme Ruler Ultimate
Below are 8 free-to-play Steam games similar to Supreme Ruler Ultimate, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Supreme Ruler Ultimate page.
Ranked picks
- 1
Crusader Kings II
Free-to-play alternative to Supreme Ruler Ultimate — no purchase or trial window. Shares Strategy and Simulation with Supreme Ruler Ultimate.
Explore one of the defining periods in world history in an experience crafted by the masters of Grand Strategy.
- 2
Age of Empires III: Definitive Edition
Free-to-play alternative to Supreme Ruler Ultimate — no purchase or trial window. Shares Strategy with Supreme Ruler Ultimate.
Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product.
- 3
World of Warships
Free-to-play alternative to Supreme Ruler Ultimate — no purchase or trial window. Shares Strategy and Simulation with Supreme Ruler Ultimate.
Immerse yourself in thrilling naval battles and assemble an armada of over 800 ships from the first half of the 20th century — from stealthy destroyers to gigantic battleships. Change the look of your ship, choose upgrades to suit your play style, and go into battle with other players!
- 4
KARDS - The WW2 Card Game
Free-to-play alternative to Supreme Ruler Ultimate — no purchase or trial window. Shares Strategy and Indie with Supreme Ruler Ultimate.
KARDS, The World War II Card Game, combines traditional CCG gameplay with innovative mechanics inspired by classic strategy games and real battlefield tactics. Take command and challenge other players in grand-scale warfare on the ground, air, or seas.
- 5
DCS World Steam Edition
Free-to-play alternative to Supreme Ruler Ultimate — no purchase or trial window. Shares Simulation with Supreme Ruler Ultimate.
Feel the excitement of flying the Su-25T "Frogfoot" attack jet and the TF-51D "Mustang" in the free-to-play Digital Combat Simulator World!
- 6
SOVL: Fantasy Warfare
Free-to-play alternative to Supreme Ruler Ultimate — no purchase or trial window. Shares Strategy and Indie with Supreme Ruler Ultimate.
SOVL is a ruleset for playing fantasy wargames. It can be played with miniatures on a table or digitally on Steam.
- 7
Landfall Archives
Free-to-play alternative to Supreme Ruler Ultimate — no purchase or trial window. Shares Strategy and Indie with Supreme Ruler Ultimate.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!
- 8
War of Dots
Free-to-play alternative to Supreme Ruler Ultimate — no purchase or trial window. Shares Strategy and Indie with Supreme Ruler Ultimate.
Easy to learn, hard to master. A simple & free RTS game.