Single-player games like Supreme Ruler The Great War
Below are 16 single-player Steam games similar to Supreme Ruler The Great War, 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 The Great War page.
Ranked picks
- 1

Supreme Ruler Ultimate
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy and Indie with Supreme Ruler The Great War.
Real-Time Strategy/Wargame. From World War II through the Cold War and into the future, re-live or re-imagine the tensions and crises of our recent history! Guide your nation through the era of your choice in Campaigns, Scenarios, and Sandboxes, as you make every effort to become Supreme Ruler!
- 2

Supreme Ruler The Great War Remastered
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy and Simulation with Supreme Ruler The Great War.
Return to WWI in the updated Supreme Ruler engine. Engage in global tactical combat. Manage your country's economy, research and diplomacy. Includes more than 50 countries set in 1914 or 1917 with no fixed end date. Enjoy improved game performance and visuals in this remastered title.
- 3

Europa Universalis IV
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy and Simulation with Supreme Ruler The Great War.
Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages.
- 4

Victoria II
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy with Supreme Ruler The Great War.
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...
- 5

Espiocracy
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy and Simulation with Supreme Ruler The Great War.
Espiocracy is an espionage grand strategy game where you lead the intelligence agency of one of 74 playable countries. Rewrite history from the shadows as you influence ideologies, stage coups, and wage proxy wars. Subterfuge takes center stage as you establish a new world order.
- 6

1992: Rasputie
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy and Indie with Supreme Ruler The Great War.
Take a place of a politician in the post-Soviet space and immerse yourself in the struggle for power amid the ruins of the former empire. Your decisions will determine the path of the young state's development.
- 7

Cascade: Hindcast
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy and Indie with Supreme Ruler The Great War.
Cascade: Hindcast is an alternate-history grand strategy game where monthly political and military decisions reshape a living war map. Use hindsight, spend scarce political capital, and watch borders, armies, and consequences move in real time.
- 8

SandTable War: Three Kingdoms
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy and Indie with Supreme Ruler The Great War.
"SandTable War: Three Kingdoms" is a strategic simulation game set during the Three Kingdoms period. Here you can play as various factions from Three Kingdoms history to conquer cities and lands, unify the realm. With abundant historical officers and scenarios, come restore the Han Dynasty!
- 9

Supreme Ruler 2020 Gold
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy with Supreme Ruler The Great War.
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.
- 10

Strategic Command Classic: WWI
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy and Simulation with Supreme Ruler The Great War.
Strategic Command World War I: The Great War is a grand strategy game in the series from award winning game designer Hubert Cater. It is more than just another addition to the Strategic Command series - it is an entire game engine at your fingertips!
- 11

Strategic Command WWII: World at War
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy with Supreme Ruler The Great War.
Strategic Command WWII: World At War is your chance to re-fight the 20th century’s greatest conflict, from Poland to China, Normandy to the Pacific, on a map encompassing the globe.
- 12

Supreme Ruler 2030
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy and Simulation with Supreme Ruler The Great War.
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.
- 13

Supreme Ruler 1936
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy and Indie with Supreme Ruler The Great War.
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.
- 14

Supreme Ruler: Cold War
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy with Supreme Ruler The Great War.
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.
- 15

Galactic Ruler
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy and Indie with Supreme Ruler The Great War.
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!
- 16

Galactic Ruler Enlightenment
Single-player alternative to Supreme Ruler The Great War — playable solo, no multiplayer required. Shares Strategy and Simulation with Supreme Ruler The Great War.
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.