Sunrider: Mask of Arcadius
Released Jul 2014
As Captain Kayto Shields, embark on a galactic voyage of heroism and survival. With his home world destroyed and his nation conquered, the inexperienced Captain Shields, and his newly minted vessel, the Sunrider, are left as the only hope against a galactic evil intent on subjugating all sentient life.
92% positive · 2,805 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence
Where to get it
Free on Steam
Evaluation
Sunrider: Mask of Arcadius is the second chapter in the Sunrider trilogy, released on Steam on October 2, 2014 as a free expansion to the original game. The store description explicitly identifies it as part of a trilogy and confirms it includes all content from the first installment, Sunrider: First Arrival.
The developer, Love in Space, completed the trilogy with the release of Sunrider: Liberation Day on March 5, 2016, which was announced as the direct continuation and conclusion of Mask of Arcadius's story. This was the final content commitment tied to this game. A spin-off title, Sunrider Academy, was also released on April 15, 2015, rounding out the developer's activity in this series.
There have been no developer communications of any kind since the Liberation Day release in March 2016 — a span of over a decade. The trilogy is complete, all announced content has shipped, and no further content has been communicated or implied. This game is a finished product with no outstanding content planned.
Evidence
Sunrider: Liberation Day released — announced as the continuation and conclusion of Mask of Arcadius's story. This was the final content commitment tied to this entry in the series.
Mask of Arcadius released on Steam as a major free update to Sunrider, adding a new hex battle engine, new story content, new units, and more.
Media
Details
Developer
Publisher
Sekai Project
Achievements
—
Platform
Windows, macOS, Linux
Controller
—
Steam Deck
Verified
Players
Single-player
About this game
As Captain Kayto Shields, embark on a galactic voyage of heroism and survival. With his home world destroyed and his nation conquered, the inexperienced Captain Shields, and his newly minted vessel, the Sunrider, are left as the only hope against a galactic evil intent on subjugating all sentient life. Together with his loyal First Officer, he undertakes to find allies across the stars to retake his home planet and restore peace to the galaxy. Sunrider: Mask of Arcadius is the second installment in the Sunrider trilogy, which includes all of the content of First Arrival. Save the galaxy in this epic adventure through the stars!
Features
- Your homeworld conquered, your mission is to gather a team of pilots for your mecha squadron. Build your relationship with your allies by interacting with them between battles. Find out your squadmates’ back stories and help shape their destinies.
- Manage a squadron of mechs and your own assault carrier. Victory on battle depends on proper allocation of funds between researching new technologies, purchasing better weapons, and balancing limited funds between mechs to suit your play style.
- Command your forces in turn-based tactical missions. Properly manage each mechs’ strengths and weaknesses to maximize your offensive capabilities and minimize casualties. Each mech has a suite of unique weapons and equipment which gives every pilot a unique battlefield role.
- Travel through the galaxy on missions and fight the enemy throughout the stars. Explore a deep world with a history spanning thousands of years.
- High technical graphics show off extreme detail and stylish mecha action.
- The story of Sunrider features the greatest elements of space opera – huge space armada battles, political intrigue, moral decisions, and romance. Experience the vast scale of Sunrider!
Are these done yet?
Last evaluated Jun 28, 2026
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