Game App 3517070

Agent Sirius

Lunarian · published by Saikey Studios · released Apr 11, 2026

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!

Steam store Contact developer Follow Data updated 20h ago · YouTube searched 1d ago

Price

$9.99

US store

Reviews

81%

33 · Positive

Playing now

sampled 12h ago

24h peak

all-time seen 1

Followers

—

Steam community hub

Owners (est.)

~990

495 – 1.6K

Revenue (est.)

~$5.4K

gross, lifetime · how

Product info

from Steam's PICS · read 3d ago

Change number: 39,323,160
Public build: 22,740,810 · Apr 11, 2026 (7mo ago)
Operating systems: windows
Architecture: —
Install size: 2.5 GB · 2.0 GB download
Install folder: Agent Sirius
Controller support: —
Metacritic: —
Homepage: saikeystudios.com
Release state: released
Community: hub · stats

Steam Deck

Verified

Tested Apr 10, 2026 on build 22,343,835

✓Default controller config fully functional
✓Controller glyphs match deck device
✓Interface text is legible
✓Default configuration is performant
iExternal controllers not supported primary player

Branches · 1

every build Steam serves for this app

Branch	Build	Updated	Description
public	22,740,810	Apr 11, 2026 · 7mo ago

Build history

every build id we have seen on a branch (history starts with our first read)

Build	Branch	Released	First seen
22,740,810	public	Apr 11, 2026 04:16	3d ago

Depots · 4

content of the public branch

Depot	OS	Language	Size	Download	Manifest
3517071	all	english	613 MB	499 MB	1731430467614277214
3517072	all	japanese	613 MB	499 MB	4299298061417483699
3517073	all	schinese	613 MB	499 MB	513377659838498534
3517074	all	tchinese	613 MB	499 MB	1221417848880961549

Launch options · 1

Executable	OS	Description
`Game.exe`	windows

Languages · 4

Language	Interface	Full audio	Subtitles
English	✓	—	✓
Japanese	✓	✓	✓
Simplified Chinese	✓	—	✓
Traditional Chinese	✓	—	✓

Packages · 1

all packages

Sub	Name	Billing	Price
1241643	Agent Sirius	Store or CD key	$9.99

Bundles · 2

all bundles

Bundle	Games	Bundle discount	Price
¡Saikey's Mega Pack!	65	-10%	$619.18
NTR	16	-10%	$160.04

Updates · patch notes

Steam announcements tagged as patch notes, linked to the public build they followed

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No patch notes seen yet for this game.