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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Update posts

0 posts

Posts announcing an update, tagged as patch notes or not

Last 90 days · as of 05:15 UTC

How this is measured

Posts in a game's official Steam news feed that announce an update: tagged as patch notes by the developer, or plainly about a patch or a released update.

News checked every 12 hours. Observed since 27 Oct 2026.

An announcement is not a build. Developers can ship updates without a post, or post about several updates at once.
Untagged posts are recognised from their words, so a few updates are missed and a few other posts may be counted. Tagged posts are marked Patch notes on the Updates tab; recognised ones are marked Update.
Older posts are being read back through each game's history, most played games first, so months before October 2026 fill in over the coming days.

Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology

Announcements

Slave Princess Elnea is now available to purchase!
25 Oct 2026 · Community Announcements
Exposed Livestream is now available to purchase!
12 Apr 2025 · Community Announcements

From the game’s Steam news feed, last checked 05:15 UTC. An announcement is not a build: games can update without posting. Every public build we saw is on the Builds tab.

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