- April 10, 2026
- Lunarian
Agent Sirius
Platforms
About
Agent Sirius is a single player role playing game with horror, fantasy, drama, mystery and others themes. It was developed by Lunarian and was released on April 10, 2026. It received overwhelmingly positive reviews from players.
An uneasy atmosphere grips Star Haven High School. Mysterious incidents targeting girls begin to unfold one after another, and rumors soon spread of things more suited to urban legends. And it is up to Beni Akesuzu as the head of the detective club to get to the bottom of these incidents. But even she has a secret: she’s a secret agent for Bancho, a secret organisation specialising in dealing wi…





- Engaging story with natural character development and well-built plot twists that keep players hooked.
- Strong chain-corruption routes with multiple transformation patterns and high-quality artwork featuring many fallen-state variations.
- Smooth exploration and puzzle gameplay with a good mix of genres; forgiving and simple action segments support narrative and adult content.
- Gameplay is basic with limited challenge; investigation is somewhat shallow and dodge-based combat mainly serves as a setup for adult scenes.
- Early game can feel overloaded with characters and information, making it potentially overwhelming.
- Limited appeal outside niche audience and no full voice acting, which may reduce immersion for some players.
- story12 mentions Positive Neutral Negative
The story is engaging and well-written, featuring strong character development and unpredictable plot twists that add meaningful depth rather than shock value. It offers multiple routes, including darker endings where characters fall under enemy control, catering especially to fans of corruption themes. Overall, the narrative is captivating and encourages full completion for the best experience.
“The story is genuinely engaging from start to finish, packed with unpredictable plot twists that keep you hooked the whole time.”
“What makes it even better is that the twists aren’t just there for shock value—they actually add depth to the story and are well-built throughout.”
“Lose and the story continues as Beni and others fall under enemy control.”
“It unlocks alternate routes where Beni falls under enemy influence, continuing the story with different outcomes and character states.”
“If you’re here for corruption and bad ends, it delivers consistently, with the gameplay and story mainly there to support that experience rather than take the lead.”
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Frequently Asked Questions
Agent Sirius is a role playing game with horror, fantasy, drama, mystery and others themes.
Agent Sirius is available on PC and Windows.
Agent Sirius was released on April 10, 2026.
Agent Sirius was developed by Lunarian.
Agent Sirius has received overwhelmingly positive reviews from players. Most players liked Agent Sirius for its story but disliked it for its gameplay.
Agent Sirius is a single player game.
Similar games include Magical Princess Lily, MELFIAS -Azure and Crimson Verge-, Sakura Gozen, Bonds of Yachiyo, School Ghost Stories and others.





