Top similar games like Sigma Theory:

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.

Control any country in the world. Have their politics, economy, and military in your hands. Shape your own version of WW3, a global pandemic, or create a custom scenario. Explore up to 66 planets and conquer through war or diplomacy. Become the ultimate strategist in the universe!

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.

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..

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

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.

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.

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.

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.

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.

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...

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!

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.

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.

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.

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.

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.

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?

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

You are the first sentient AI, born into a city filled with endless opportunities. Raise an army of robots and obliterate your foes, become a benevolent machine overlord, or explore countless other objectives and the many paths to accomplish them.

Lawgivers II is a political sandbox game that features multiple electoral systems, approve/reject bills and govern a country. Start out your career from the very bottom, and perhaps one day, lead your nation to become the most influential in the world.

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.

1789, Paris. Take Napoleon’s place in an alternate history as Céline or César Bonaparte in this ideology driven, turn-based strategy journey. Defend, reform or oppose the monarchy and write your own alternative history by combining cunning political skills and tactical military prowess.

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.

Create your own nation in Millennia, a historical turn-based 4X game that challenges your strategic prowess across 10,000 years of history, from the dawn of humanity to our possible futures.

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.

Politica is a mini-game political simulator. Assuming the role of a lobbyist in republican Italy, players will have to accumulate as much money and power as possible through lobbying strategies, political relations and intrigue.

King's Orders is a simplified historical strategy game with an important innovation. You command your armies by sending letters with orders. Messengers with these letters travel the land and can be lost or intercepted. Generals execute orders upon receipt and send you reports the same dangerous way.

What will be the strategy game if you throw out all the grind from it, all the boring annoying actions and leave only strategy and tactics? It became interesting to us and as a result we received Generals & Rulers. Try it now!

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.

Are you ready to climb the ranks of the elite and become the wealthiest hedge fund in the world? In this thrilling new stock market game, you'll trade stocks, bonds, and use corruption to achieve your goals. Don't miss your chance to dominate the world of finance and amass a fortune.

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.

Shape the destiny of the world as an 18th century ruler. Forge alliances and prepare your armed forces to expand your domain and colonize new lands. Or focus on internal development and help your subjects thrive with prudent economic policy and lawmaking. The choice is yours in Age of Enlightenment!

El Presidente is back! Prove yourself once again as a feared dictator or peace-loving statesman on the island state of Tropico and shape the fate of your very own banana republic through four distinctive eras.

Democracy 4 lets you take the role of President / Prime minister, govern the country (choosing its policies, laws and other actions), and both transform the country as you see fit, while trying to retain enough popularity to get re-elected...