Single-player games like Supreme Ruler Ultimate
Below are 14 single-player Steam games similar to Supreme Ruler Ultimate, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Supreme Ruler Ultimate page.
Ranked picks
- 1
Supreme Ruler The Great War
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy and Indie with Supreme Ruler Ultimate.
Real-Time Strategy/Wargame. BattleGoat Studios invites you to travel back to 1914 and select from more than 50 playable regions at the onset of World War I, as European powers struggle to survive and new technologies transform warfare.
- 2
Supreme Ruler 1936
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy and Indie with Supreme Ruler Ultimate.
Real-Time Strategy Game. Guide your nation through the most violent era in modern history. Play massive campaigns as one of the principal nations, set-piece scenarios of famous battles, or set your own victory condition and play as any nation in the world in Sandbox mode.
- 3
SuperPower 2 Steam Edition
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy and Simulation with Supreme Ruler Ultimate.
SuperPower 2 is the only global geopolitical simulation game which allows players to control entire countries. Players control countries in 3 major areas: political, economic and military, but this time, in a beautiful real-time 3D environment.
- 4
Hearts of Iron III
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy with Supreme Ruler Ultimate.
Hearts of Iron III lets you play the most engaging conflict in world history, World War 2, on all fronts as any country and through multiple different scenarios. Guide your nation to glory between 1936 and 1948 and wage war, conduct diplomacy and build your industry in the most detailed World War 2 game ever made.
- 5
Victoria II
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy with Supreme Ruler Ultimate.
Carefully guide your nation from the era of absolute monarchies in the early 19th century, through expansion and colonization, to finally become a truly great power by the dawn of the 20th century. Victoria II is a grand strategy game played during the colonial era of the 19th century, where the player takes control of a country, guiding...
- 6
Darkest Hour: A Hearts of Iron Game
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy with Supreme Ruler Ultimate.
Developed by a team of experienced modders from the Paradox forum, Darkest Hour is a stand-alone Hearts of Iron game. The game features a mixture of short and in-depth campaigns set across the darkest chapters of the 20th century. Play from the outbreak of the Great War up until the onset of the Cold War.
- 7
Solar Nations 2
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy and Simulation with Supreme Ruler Ultimate.
In this Grand Strategy game, you take control of the Solar System's Great Powers in 2092 and weather the storm of change as you navigate the uncertain waters of the future. Control the greatest military forces in the world and wage wars on an epic scale: outer space is yours to conquer!
- 8
Steel Division 2
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy and Indie with Supreme Ruler Ultimate.
Steel Division 2 is a historically-accurate WW2 real-time strategy game set on the Eastern Front. Features 1:1-scale turn-based army management and real-time tactical battles with thousands of men at your order.
- 9
Supreme Ruler 2030
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy and Simulation with Supreme Ruler Ultimate.
Rise to power as any modern day country in a realistic military, political and economic simulation. Command your country's diplomacy, espionage, and resource management to strengthen your position. Use real-time tactical control of your military to fortify your place as the Supreme Ruler.
- 10
Hearts of Iron IV
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy and Simulation with Supreme Ruler Ultimate.
Victory is at your fingertips! Your ability to lead your nation is your supreme weapon, the strategy game Hearts of Iron IV lets you take command of any nation in World War II; the most engaging conflict in world history.
- 11
Supreme Ruler 2020 Gold
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy with Supreme Ruler Ultimate.
Supreme Ruler 2020 Gold contains Supreme Ruler 2020 and the expansion, Global Crisis: SUPREME RULER 2020 Overnight, the US dollar crashes AND the sound echoes across the globe. The economic crisis amplifies global instabilities and regional disputes, tearing the world asunder. Nations dissolve, economies collapse, and tensions escalate.
- 12
Supreme Ruler: Cold War
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy with Supreme Ruler Ultimate.
Building on Supreme Ruler 2010 and 2020, BattleGoat Studios invites you to relive the tension and uncertainty of the Cold War. As the 1950’s approach, the Korean War looms, the Arms Race intensifies, the Berlin Crisis leads to the formation of NATO, and the world anticipates a new World War.
- 13
Galactic Ruler
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy and Indie with Supreme Ruler Ultimate.
Galactic Ruler offers real time strategy game play at both planetary level and in space! Lead your faction in diplomacy or conquest across a procedurally generated galactic map where any system might hold hostile enemies or resource riches. Develop advanced technologies to rule the galaxy!
- 14
Galactic Ruler Enlightenment
Single-player alternative to Supreme Ruler Ultimate — playable solo, no multiplayer required. Shares Strategy and Simulation with Supreme Ruler Ultimate.
Play campaign stories within the Galactic Ruler universe. Invade the galaxy to eliminate those who stand in your way or rally alien races to defend against the invaders. Fight battles at both planet and space across a procedurally generated galaxy. Use new unit control systems to manage your forces.