Agent Sirius

by Lunarian

Uncensored Windows
Versionv1.01 Steam + DLC
EngineRPGM
Released2024-01-13
Updated2026-04-16
LanguageEnglish

About Agent Sirius

Agent Sirius is a 2D adventure game made with RPG Maker by Lunarian. It follows Suzaku Akane, who leads the Detective Club and also serves a hidden agency. She senses danger at a fantasy academy, where a series of unsettling incidents is tied to a villain’s plan to control people through pleasure brainwashing. With eight suspects, Akane investigates alongside Nadeshiko, her partner and overseer, trying to identify the culprit before the school is taken over.

Development is ongoing. The current build is v1.01 Steam + DLC, released on January 13, 2024. It runs on Windows, is presented in English, and is uncensored. The latest changelog points to the official Steam version, 1.04, and translated DLC content included for this release.

Developer's description

Suzaku Akane, who serves as the head of the Detective Club, had sensed an ominous air at the academy. Spoiler One mysterious incident after another... a series of lewd and unsettling events... Akane, who also works as an agent in a secret society, knew their true nature. It was the machinations of a villain trying to dominate people through pleasure brainwashing. Eight suspects emerge. Before the academy falls to the villain, the culprit must be identified and their ambitions thwarted...! And so, Akane begins the investigation with her partner and overseer, Nadeshiko!

Download Agent Sirius v1.01 Steam + DLC

Changelog

v1.01 Steam Official Steam version 1.04 DLC Translated

Player reviews

Player rating 4.0 / 5 · 18 ratings
Written reviews 18 · avg 3.5★
Positive (4–5★) 56%
Latest review 2026-02-22

What players say

Mostly positive but mixed: praised for corruption and art, criticized for repetitive gameplay and limited explicit scenes.

5★ 4
4★ 6
3★ 5
2★ 1
1★ 2

Players like

  • Corruption and bad endings are praised
  • Art is praised, especially mind-control scenes
  • Story and characters receive positive comments

Common complaints

  • Too few explicit scenes and CGs
  • Gameplay relies on repetitive running and minigames
  • Long text sections and shallow writing draw criticism

Best for players who enjoy corruption, mind control, and detailed bad endings.

Summarised from 18 written player reviews.

Adto 2026-02-22 ★★★★★
HOW IN THE FUCK this shit has 4 stars? - There is barely 2 sets of scenes every 2 hours of gameplay where you just run, and run and run and run and run around the fucking building until you…
SergeKov 2026-02-08 ★★★★★
Well, it's a nice game with a lot of fetishes covered. But it has lots of problem inside. The CG is good, but it usually have like 2-3 images per route. And all the other things happen in text and…
2pretty2die 2025-05-21 ★★★★★
So I really enjoyed this game. Which is weird because there were some things I didn't like: 1. Massive cast of characters to remember (I'm bad with names lol). 2. Pretty quick corruption instead of a slow burn (personal preference)…

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