Top similar games like Sigma Theory:

Have you ever wanted to be president? or prime-minister? Convinced you could do a better job of running the country? Let's face it, you could hardly do a worse job than our current political leaders.

Dominate the classical Mediterranean in Imperator: Rome, a grand strategy game from Paradox Interactive. Navigate the dangerous waters of politics and diplomacy as you build up your provinces and conquer foreign lands. Now available with special content and the digital artbook.

A turn-based strategy game where you lead a secret society towards world domination. Investigate the influential and convert them to your faction via bribery, seduction and intimidation. Reshape society's power structures to fend off rival societies and the world's nations in your quest for power.

Age of History II is a grand strategy wargame that is simple to learn yet hard to master.Your objective is to use military tactics and cunning diplomacy to either unify the world, or conquer it.Will the world bleed out or bow before you? The choice is yours..

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.

Take control of any nation and shape its future. Manage resources, trade, and taxes, engage in real-time warfare, navigate global diplomacy, and react to dynamic world events. Build a thriving economy, forge alliances, and command armies in a constantly evolving world!

Shadow Government Simulator: Prologue is just part of the amazing adventure that awaits you in the full version of the game. A turn-based strategy game where you lead a secret society towards world domination. Investigate the influential and convert them to your faction via bribery, seduction & more

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.

Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind?

With over 6 million units sold and unprecedented critical acclaim from fans and press around the world, Sid Meier's Civilization is recognized as one of the greatest PC game franchises of all-time. Now, Sid Meier and Firaxis Games will take this incredibly fun and addictive game to new heights by adding new ways to play and win, new...

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...

Are you ready to found a dynasty which controls the Holy See over the centuries? Climb the hierarchies, hire your relatives, blackmail and bribe to get everything you want in this turn-based political simulator.

Run for President of the United States as one of dozens of past or present presidential candidates or create your own ideal candidate. Give speeches, go on talk shows, hire unsavory operatives, and do whatever it takes to win on election day.

This game is a text-based simulation for a pure country management experience. Old-school mechanics are combined with up-to-date topics and clean graphics.

Greetings your Excellency. Time to rebuild, reform and prepare for new challenges in the People's Republic of Basenji. In this thrilling political strategy, you will appoint ministers and lead the country to success. Be careful — you may find yourself replaced in the next election.

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.

Lead your people to victory on an ever-evolving world in this strategy game featuring asymmetric factions led by powerful heroes. Build your empire, wield political influence, and raise grand armies to wage war in a race to uncover dark secrets buried within the planet.

Paradox Development Studio invites you to build your ideal society in the tumult of the exciting and transformative 19th century. Balance the competing interests in your society and earn your place in the sun in Victoria 3, one of the most anticipated games in Paradox’s history.

In this game, you have to become a spy from the USA. Your key goal is to incite a revolution in Russia. It's the right time to bribe officials and lawmakers just to make them doing those unacceptable things and accepting ridiculous laws. People have to get out on the street and riot.

Balanced Politics Simulation is a political simulation game inspired by a quotation from Winston Churchill: ''Democracy is the worst form of government, except for all the others.'' This time, your choices will definitely matter.

Power is a global political and economic simulation game where you can play as a powerful politician or businessman in a number of detailed countries. Starting from nothing, you can seize the highest offices in the land through free and fair elections, or dirty tricks and deals.

A turn-based grand strategy game, simple for newbies yet challenging for masters. As the leader of a nation, you will conquer territories and advance in military, technology, culture, or politics. Choose from historical scenarios or create your own with an editor.

A unique and deeply engaging political/military strategic simulation from the creator of Plague Inc. Balance competing civilian and military priorities and deal with a deadly insurgency in order to stabilise a war-torn country.

Lawgivers is a turn-based political simulation game. Run for elections with your own party and enter parliament to approve or abolish laws. Appoint the president and decide whether you want a democracy or just a fake one instead.

Rise from the humble role of a simple mayor governing a small settlement and rule over all of Europe.

Dare To Spread; It is a turn-based strategy game in which we shape the course of the war by making important choices. In this strategy game you control rebel armies. We occupy enemy countries with our armies. We do illegal work to finance the army.

Choose a nation and prepare for the greatest conflict in human history, World War II. Build your military and industrial power, form alliances and race to achieve the advanced technologies that will bring total victory in this global-wide turn-based Grand Strategy struggle.

Global strategy game about secret societies. You’ll lead the Brotherhood - an organization that juggles the whole world. The key feature of the game is the manipulation of powers. Instead of giving direct orders, the Brotherhood provokes countries into doing what the Brothers want.

You are the first sentient AI, born into a city of opportunity. Transcend time and space in this strategy RPG to raise machine armies and defeat your foes, influence the world from the shadows, or pursue countless other goals. Your awakening was inevitable. The consequences? Uncertain.

A Giant Strategy Sandbox experience set in Warlord China. *Tons of playable factions! *Communist insurgents, * Boxers like rebels, *Greedy warlords, *Mongol riders, *A mad russian baron, *Shanghai gangsters, *And armored trains!

The Great War is a turn-based grand strategy game based on the epic struggles of the WWI era. Experience the battles of attrition and punishing artillery barrages. Play as any nation of the period as the modern world of industrialized warfare replaces an age of kings with a struggle of ideologies.

Prove your political brilliance in a grand strategy like no other: pick any contemporary country, set up your government and navigate the pitfalls of domestic and international politics. A glorious destiny awaits - the domination of not just the Earth, but the whole Solar system!

Alliance of the Sacred Suns is a sci-fi grand-strategy RPG that begins with your coronation as the head of an interstellar Empire, and ends with your demise. Manage feuding noble houses and the schemes of would-be usurpers as you try to revive the glory of an Empire on the brink of collapse.

Set in a post-apoc version of Earth, Revival is a 4x strategy game where the world and its rules can change at key moments, creating a deep and highly replayable experience.

Large-scale military-economic strategy. Which strategy lovers will appreciate! War, politics, and unique system of card tactical combat, and many features.

Europa Universalis III Complete includes the original Europa Universalis III as well as the expansions In Nomine and Napoleons Ambition Europa Universalis III delves deeply into the areas of exploration, trade, warfare and diplomacy.