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About Supreme Ruler the Great War
Supreme Ruler the Great War is a strategy game set during the First World War. You guide a nation through the conflict, making economic, diplomatic, domestic and military decisions to secure its survival. As the Central Powers and the Triple Entente prepare to attack, neither understands the scale of the war to come. Over the following years, air power, submarines and artillery transform how wars are fought.
Campaigns and sandbox
You can play campaigns as various major powers and follow historic events, or take control of any nation in Sandbox Mode and influence the conflict’s outcome. Start in 1914 or 1917 and continue well into the 21st century, shaping thousands of historical events and the course of the timeline.
Lead your nation
Use diplomacy, trade, espionage and intimidation to influence other nations’ policies. Modernize your economy to support your chosen social and military policies, and guide your country through the first war fought on a global scale. A technology tree covers more than 100 years of advances in technology and equipment.
Command your forces
You control military forces at both the strategic and tactical levels in real time. Armies are represented in historical detail down to the battalion level, while an integrated weather model affects battlefield outcomes. You can make every decision yourself or have cabinet ministers help.
Multiplayer
The game includes multiplayer through Steam Matchmaking on the Windows version.
Frequently asked questions
The best price for Supreme Ruler the Great War is $2.81 at Difmark. 7 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and Supreme Ruler the Great War stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for Supreme Ruler the Great War are: Windows Vista, Intel Pentium 4, 1 GB RAM, 2 GB storage. It also runs on macOS. The recommended specs are in the System requirements section.
Yes. Supreme Ruler the Great War has multiplayer and a single-player mode. It supports online PvP.
Yes. Supreme Ruler the Great War is the full base game. You need nothing else to play it.











