Released May 15, 2026 $14.99 Very Positive Counts toward your Steam games

SiNiSistar 2

By Uu · published by Eroge Japan

Sexual ContentHentaiFemale ProtagonistNudity2D Metroidvania Gore Dark Fantasy AnimeAction RPGRPGPixel Graphics

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Reviews 3,936 Very Positive

Players now 78 Peak today 78

Followers, 30 days — Not enough history yet

SiNiSistar 2 is a game tagged Sexual Content, Hentai and Female Protagonist by Uu, released May 15, 2026. It has 3,936 Steam reviews (Very Positive). The Steam games most like it include Eris Dysnomia, Noelle Does Her Best! and UnHolY DisAsTeR.

Step into a beautifully somber pixel art world of decay filled with grotesque, writhing abominations...A dark action RPG that follows the journey of a demon-slaying nun who must resist destruction and despair while purging the corruption from this world one boss after another!

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<a href="https://launchrivals.com/games/4466620-sinisistar-2"><img src="https://launchrivals.com/games/4466620/badge.png" alt="SiNiSistar 2 launch date" width="320" height="84"></a>

<a href="https://launchrivals.com/games/4466620-sinisistar-2"><img src="https://launchrivals.com/games/4466620/badge.png?theme=light" alt="SiNiSistar 2 launch date" width="320" height="84"></a>

Eris Dysnomia 89% match · Sexual Content, Hentai, Female Protagonist
Noelle Does Her Best! 89% match · Sexual Content, Hentai, Female Protagonist
UnHolY DisAsTeR 88% match · Sexual Content, Hentai, Female Protagonist
Country Bumpkin Yutaka 87% match · Sexual Content, Hentai, Female Protagonist
Bonds of Yachiyo 86% match · Sexual Content, Hentai, Female Protagonist
Curse Errant 85% match · Sexual Content, Hentai, Female Protagonist
Kuroinu Redux 84% match · Sexual Content, Hentai, Nudity
Goblin Conqueror 84% match · Sexual Content, Hentai, Female Protagonist
Succubus Affection 84% match · Sexual Content, Hentai, Nudity
Island SAGA 82% match · Sexual Content, Hentai, Female Protagonist

Steam data

Everything Steam lists for SiNiSistar 2 · record updated 18 hours ago

Steam store

Overview

App ID4466620

Release dateMay 15, 2026

Last change number40158899

Last record update18 hours ago

App type: Game
Developer: Uu
Publisher: Eroge Japan
Steam profile: Counts toward game count and achievement totals · checked 17 hours ago
Franchise: シニシスタ
Technologies: Unity detected

Windows macOS 64-bit

Steam Deck: Playable
Controller: Partial support

Single-playerPartial controller supportSteam CloudSteam AchievementsFamily Sharing

Prices

Price · US$14.99

On sale0 of 41regions right now

Lowest seen · US$14.99Oct 23, 2026

Checked20 hours agoin 41 regions

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Every price change is kept from Oct 23, 2026 on. Pick a region below to compare.

Patches

May 20, 2026 Patch Notes Version 1.3.1
- Fixed an issue where the game could become unable to progress under certain conditions when displaying the costume change mod list. - Fixed an issue where some Hard Mode settings were not being applied. - Fixed an issue where some sprite…

Build	Branch	Updated
23317806	public	May 20, 2026

Depots

ID	Name	Systems	Size	Download	Manifest
4466621	—	Windows	1.78 GB	1.70 GB	4073389734174195398
4466622	—	macOS	2.00 GB	1.85 GB	7121909639395693581

Branch	Build	Updated	Access
public	23317806	May 20, 2026	Open

Configuration

Install foldersteamapps/common/SiNiSistar 2

Executable	Arguments	Systems	Description
SiNiSistar2.exe		Windows
SiNiSistar2.app		macOS

Space per player953.7 MB

Filesup to 500

Save locations2

Root	Path	Pattern	Systems
WinAppDataLocalLow	Uu/SiNiSistar2/SaveData_S/	*	Windows
MacAppSupport	com.Uu.SiNiSistar2/SaveData_S/	*	MacOS

Achievements

Achievements264 hidden

Most unlocked93.4%Abomination Broodling Nanny

Rarest11.3%Backstab

Abomination Broodling Nanny Defeat Abomination Broodling Nanny. 93.4%
Gravekeeper. Defeat Gravekeeper. 68.7%
Penetrating Arrow Magic Learn "Penetrating Arrow Magic" ability. 68.5%
Swamp Abomination Broodling Defeat the Swamp Abomination Broodling. 65%
Dreamwood Tree Defeat the Dreamwood Tree. 60.8%
Pigman Defeat Pigman. 58.2%
Abomination Broodling Harbinger Defeat the Abomination Broodling Harbinger. 58.1%
Giant Spider's Cocoon Defeat Giant Spider's Cocoon. 57.6%
Demihuman Abomination Broodling Defeat Demihuman Abomination Broodling. 56.5%
Demihuman Remnants Leaders Hidden achievement 54.9%
1 Shot 3 Kills Defeated 3 or more enemies at once using Penetrating Arrow Magic. 54.2%
Enenuth Mother Defeat Enenuth Mother. 51.2%
Exploding Arrow Magic Learn "Exploding Arrow Magic" ability. 48.4%
Stomach Abomination Broodling Defeat the Stomach Abomination Broodling. 47.1%
Imitation Abomination Broodlings. Defeat the Imitation Abomination Broodlings. 46.9%
Hag Defeat Hag. 44.2%
Eye Priest Defeat Eye Priest. 42.9%
Giant Pig Defeat Giant Pig. 41.5%