Sigma Theory: Nigeria - Additional Nation game cover

Sigma Theory: Nigeria - Additional Nation CD Key

This DLC introduces Nigeria as a playable nation, featuring four unique agents, two scientists, and a diplomat. Players can engage in exfiltration missions in Abuja, benefiting from Nigeria's special trait that grants immunity to armed groups.

Looking for the best price for Sigma Theory: Nigeria - Additional Nation? Compare offers from 3 stores on CheckGamePrices to find the cheapest Steam key available. Right now, the lowest price is 0.99$ at Kinguin, which is 67% cheaper than the current Steam price (2.99$).

Current Lowest Price

0.99$

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Kinguin

Sigma Theory: Nigeria - Additional Nation screenshot 1

Release Date

19 Feb, 2020

Publisher/Developer

Mi-Clos Studio, Goblinz Studio, FibreTigre, Fractale

Reviews

Steam: 85.71% positive (6/7)

Metacritic: -

Check more Steam statistics for Sigma Theory: Nigeria - Additional Nation

Game Tags

Strategy Simulation

System Requirements

Minimum:

OS *: Windows 7/8/8.1/10
Processor: 1,3 GHz CPU
Graphics: NVIDIA GT 440 or AMD Radeon HD 5550 w/ 512 MB
Storage: 50 MB available space

Sigma Theory: Nigeria - Additional Nation Steam Price History Chart

Current Steam price: 2.99$
Lowest Steam price ever: 1.49$ — 2026-10-08

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Sigma Theory: Nigeria - Additional Nation description

Sigma Theory: Nigeria - Additional Nation is an exciting expansion for the acclaimed sci-fi strategy game that introduces Nigeria as a new playable nation. This DLC enriches the gameplay with four unique Nigerian agents: Warrior, Peace, Pure, and Dealer, each bringing distinct abilities and strengths to your strategic arsenal. In addition to the agents, the expansion introduces two expert Nigerian scientists and a skilled diplomat to assist in your global endeavors.

Set against the backdrop of Abuja, Nigeria's bustling capital, players will engage in thrilling exfiltration missions while navigating the complex web of international espionage. An intriguing trait of Nigeria is its immunity to armed groups, providing a significant strategic advantage as you maneuver through delicate political landscapes. Developed by the creators of the award-winning game Out There, Sigma Theory invites you to explore the potential of a world transformed by groundbreaking scientific discoveries, urging you to harness new technologies to secure your nation's place in the global power struggle.