Agent Sirius

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Join Beni Akesuzu, the high school detective president and secret agent, in this thrilling mystery RPG! Investigate mysterious incidents, solve puzzles,and uncover a sinister plot as monsters lurk in the shadows in a race to save the school and it's students before it’s too late!

Developer: Lunarian
Publisher: Saikey Studios
Released: 11 Apr 2026
Price: $9.99
Platforms
Steam Deck: Verified
Languages: Japanese +3
Series: Saikey Studios

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Players on Steam, last 48 hours

Steam concurrent players, polled every 30 days. Observed since 24 Oct 2026. As of 17:58 UTC.

Show the numbers

Players of Agent Sirius, last 48 hours, newest first
Poll	Players
29 Oct, 13:38 UTC	0
29 Oct, 09:30 UTC	0
29 Oct, 05:13 UTC	0
29 Oct, 01:11 UTC	0
28 Oct, 21:10 UTC	0

How this is measured

Player counts over time, as we observed them.

Counts people running the game through Steam only. Players on other stores, consoles or launchers are not included.
We poll the busiest games every 15 minutes and quiet ones as rarely as once a month, so a short spike between polls can be missed. Each game shows how often it is polled.
Our player history starts on 19 October 2026. Earlier peaks, including launch peaks, are not in our data.

Source: Steam Web API, ISteamUserStats/GetNumberOfCurrentPlayers. Full methodology

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Agent Sirius

Players on Steam, last 48 hours

Agent Sirius

Players on Steam, last 48 hours

Players By Month

Players By Month