Steam Price $4.99
Release Date 3/27/2026
Developer Koisoft
Publisher Koisoft
Steam App Id 3963310

Sanctum Protocol

After the cataclysm known as The Breach, a young civilian awakens the power of the Guardian to purify demons. Fight alongside the warrior nuns or surrender to forbidden pleasure... every choice will shape your corruption and the fate of the world.

Last Updated: 5/3/2026

1 Players In-Game
Player Score
67
3
0
Platforms
  • Windows
  • Mac
  • Linux
  • Steam Deck

About Sanctum Protocol

Sanctum Protocol is an Indie game developed by Koisoft. On 3/27/2026, it was released on the Steam Store by Koisoft.

It can be played and ran on Windows systems. At the moment, it is not possible to play or run Sanctum Protocol on the Steam Deck.

According to Steam’s category system, Sanctum Protocol supports the following features:

  • Single-player
  • Save Anytime
  • Mouse Only Option
  • Family Sharing

From the Steam community, Sanctum Protocol has been tagged with the following user tags:

  • Supernatural
  • Psychological
  • Text-Based
  • Multiple Endings
  • Story Rich
  • Visual Novel
  • Choices Matter
  • Narration
  • Mature
  • Conversation
  • Faith
  • Nudity
  • Sexual Content
  • Sci-fi
  • Dark Fantasy
  • Indie
  • Demons
  • Adventure
  • Singleplayer
  • 2D

Related Packages

Sanctum Protocol is referenced by 1 package in the Steam Store. A package (or sub) is simply an item that can be purchased on Steam.

NamePriceActions
Sanctum Protocol$4.49View

Supported Languages and Localizations

Sanctum Protocol is available in 2 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.

NameInterfaceAudioSubtitles
English
Yes
No
Yes
Spanish (Latin America)
Yes
No
Yes
true

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