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Sins of a Solar Empire II - Reinforcements

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Sins of a Solar Empire II - Reinforcements

A space battle in Sins of a Solar Empire II, with capital ships firing on enemy ships. A planet with rings is in the background. Reinforcements arriving.

A scene from Sins of a Solar Empire II, featuring a space battle with laser beams and futuristic spacecrafts firing at each other.

A space battle in Sins of a Solar Empire II, with laser fire and ships engaging. Reinforcements arrive amid the chaos.

A screenshot from Sins of a Solar Empire II. Space battle with capital ships and a variety of projectiles and effects, explosions, beams.

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Sins of a Solar Empire II – Reinforcements expands the galactic battlefield with the arrival of massive command-class warships and brand-new faction victory paths. This content pack transforms the flow of war, introducing colossal vessels that dominate entire fleets and providing alternative ways to achieve supremacy across the stars. It requires the base game, Sins of a Solar Empire II, to play.

This expansion features six extraordinary command ships, each designed to reflect the philosophy and strengths of its faction. The TEC bolster their industrial might with the Takadaran Command Fortress, a mobile shipyard capable of producing cruisers on the frontlines, while their Primacy branch deploys the modular Khevarkov Battleship, adaptable with heavy railguns, missile pods, or hangar bays. The Vasari continue their tradition of overwhelming power with the Sularkon Tyrant, a fortress-city in space that projects dominance with its own integrated Phase Gate, while the Exodus faction turns the refugee-built Anarkrul Wanderer into a bristling war platform of defense and strikecraft. Not to be outdone, the Advent unleash the Oblivia Dreadnought, a heavily armored juggernaut armed with a devastating PsiKinetic Lance, and the Justicia Dreadnought, a vessel that grows stronger as its allies fall, eventually unleashing catastrophic retaliation. These titanic ships, constructed from titan factories, redefine fleet composition and become the centerpiece of galactic strategy.

Sins of a Solar Empire II – Reinforcements expands your arsenal and changes how wars are won. Each major faction gains its own unique path to victory. The Vasari can pursue "The Departure," constructing enormous ships to flee beyond the sector and ensure their survival. The Advent, driven by their faith and unity, can achieve "Mass Conversion," overwhelming entire systems with their command ships to bring worlds under their control. Meanwhile, the Trader Emergency Coalition unlocks the terrifying "Super Novalith Offensive," building the ultimate planet-killing cannon capable of erasing worlds from existence in a single strike. These new victory conditions give players narrative-driven objectives that go far beyond simple conquest.

With its combination of colossal new command ships and faction-defining win conditions, Sins of a Solar Empire II – Reinforcements adds both spectacle and depth to the already engaaging experience of Sins of a Solar Empire II.

This game is a DLC and needs to be used with the complete version of the game : Sins of a Solar Empire II

Technical information
Official website
Categories : Simulation, Strategy
Editor : Stardock Entertainment
Developer : Ironclad Games Corporation
Mode(s) : Solo, Multiplayer, Co-op
Release date : 25 September 2025
System Requirements
- Minimum
- OS: Windows 10 / 11 (64-bit)
- CPU : Core i5-12400T
- RAM : 8 GB
- GPU : GeForce 950 / Radeon RX 450
- Storage : 20 GB
- Recommended
- OS: Windows 11 (64 bit)
- CPU : Core i7-610
- RAM : 16 GB
- GPU : GeForce 1060 / Radeon 580
- Storage : 20 GB