A somber pixel-art action RPG from Uu and Eroge Japan.
SiNiSistar 2 guide
SiNiSistar 2 is a side-scrolling dark action RPG developed by Uu and published by Eroge Japan. It follows Sister Lelia as she purges corruption from the land of Arsezon, fighting through swamps, caves and abandoned villages with a staff that mixes melee swings and magic.
- Developer
- Uu
- Released
- May 15, 2026
- Steam reviews
- 3,814
SiNiSistar 2 Completion
3 pages- SiNiSistar 2 Achievement Guide — Steam DeckUpdated 2026-10-05
- SiNiSistar 2 All Achievements Guide — Steam DeckUpdated 2026-10-05
- SiNiSistar 2 Hidden Achievements — Steam DeckUpdated 2026-10-05
- SiNiSistar 2 Patch Steam Deck — Steam DeckUpdated 2026-10-05
- SiNiSistar 2 Steam Patch — Steam DeckUpdated 2026-10-05
SiNiSistar 2 Optimization
1 pages- SiNiSistar 2 Best Weapon — Steam DeckUpdated 2026-10-05
SiNiSistar 2 Start Here
5 pages- SiNiSistar 2 Boss Guide — Steam DeckUpdated 2026-10-05
- SiNiSistar 2 Final Boss Guide — Steam DeckUpdated 2026-10-05
- SiNiSistar 2 Guide — Steam DeckUpdated 2026-10-05
- SiNiSistar 2 Walkthrough — Steam DeckUpdated 2026-10-05
- SiNiSistar 2 Walkthrough Guide — Steam DeckUpdated 2026-10-05
Media
Trailer and screenshots for SiNiSistar 2 — click any shot to enlarge.
Screenshots from the publisher's Steam store listing.
The Steam store page hosts the official trailer and gameplay clips; no captioned video transcript was available for this batch.
Which version of SiNiSistar 2 should you buy?
Side-by-side facts from the official store listings. Prices are US.
| Platform | Support | Notes | |
|---|---|---|---|
| Windows | Native | Listed on the Steam store page | |
| Mac | Native | Listed on the Steam store page | |
| Steam Deck | Playable | Runs through Proton per ProtonDB | |
| Linux | Not listed | Playable through Proton |
Platform support from the Steam store listing and ProtonDB.
FAQ
Answers use only sourced facts; unverified items are marked.
- What kind of game is SiNiSistar 2?
- It is a side-scrolling dark action RPG from Uu and Eroge Japan. You play Sister Lelia, using melee swings and three spell families to fight through six dungeons across three acts.
- How long does SiNiSistar 2 take to finish?
- Most first playthroughs run four to six hours. The Steam guide author reports about four hours on a first run, while the community wiki estimates five to six hours.
- Does SiNiSistar 2 run on Steam Deck?
- Yes. ProtonDB rates it Playable and reporters confirm it works with Proton 10.0-3, including the publisher's external patch.
- Does the Steam version include the mature content?
- No. The Steam build is the all-ages release, and the publisher distributes the uncut version as an external patch from its own site rather than as Steam DLC.
Latest updates
Newest and refreshed pages in this section.
Ready to start SiNiSistar 2?
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