OsRat

OsRat is a device found optionally on the course of Priest's Debt quest, used to access the Other Side.

Overview

The OsRat is found in the Deekula B2 apartment, accessible via a secret passage from B1 apartment powered by an Industrial Fuse.

To use the device, it must be placed in the primary hand slot, the device must be powered by a pack of AA baterries and requires having a Black Amulet.

When player is near dead bodies overgrown with Green Mushrooms or other entities seen only in the Other Side, the signal meter on the OsRat will increase, player can use the fully charged device to connect with the Other Side.

A recipe to craft another OsRat can be found nearby at the location where the original device is found.

Other Side

Main article: Other Side

While being in the Other Side, also known as the Wasteland, player can talk with dead people and collect Red Things, walking away from an entity in the Other Side player used to connect to, will force player to leave the Other Side.

Talking with dead people is usually quest-related and allows player to gather more information, it is used to gather additional information in Priest's Debt and Radio Signal quests, as well as it is needed to start Tunnel B2 quest.

Being in Other Side allows to collect Red Things that will decrease Fungal Disease and its progression, once collected orbs will not respawn.

Notable locations

• Inside Deekula B1 apartment, near the Father Tobias' body.
• Inside Deekula B3 apartment, near to the bathroom body.
• Behind locked gate next to the control room of the Bergmann Tunnels, near the dead Mike's body.
• Inside bricked off storage room behind B3 flooddoors.

Chalk board

in the apartment where the OsRat is found, there is a chalk board seemingly showing its workings and development.

the two symbols on the far sides of the ---><--- are also found in the wasteland notes, and the spiral one in elos hidehout in INFRA.

the last symbol in the set of 5 symbols on the right of the board (not counting the infinity sign) also appears in the wasteland notes

the small writing in the bottom right says 'who is AH? red raven signals'

this seems to connect to special/mask_sound_001.wav which also mentions a 'red raven'

The large text on the right side gives a usage guide:

• <-- AA BATTERIES
• GREEN LIGHT / READY TO CONNECT
• NO LIGHT / REPLACE THE BATTERIES
• PRESS THE BUTTON WHEN THE LIGHT IS GREEN

Below this is an infinity symbol. in INFRA, on the box that controls isle3's drawbridge lights, there is grafitti of a raven and an infinity symbol.

The large text on the left says

• METER ARROW / SIGNAL STRENGTH [????]
• METER LIGHT / CONNECTION STRENGTH
• [????] / [????]
• STRONG SIGNAL USUALLY NEAR SMV BODIES
• how to make it stringer? [????] RR signals [????]?

RR may stand for 'red raven' or 'raven research'

on the far left, there is a numbered list

1. BLACK NOISE
2. RED NOISE
3. [???]
4. ??? (x'd out)
5. [???]

This list seems to correlate to the top left diagram, which also shows five stages. stage 3 has a radiation symbol over it, and is directly under where the two ---><--- lines meet.

Trivia

• If player happens to clip through the ground and fall into the void, they will be teleported to a unique location in the Other Side, finding an exit will teleport player into the storage area of Tenement B.
• Other Side can be briefly visited in INFRA at two occasions, once consuming a special coffee made by the MulEx CoPan coffee machine found on the Stormdrain level and once consuming a special tea after contacting Missing Dock guy under the 035 435 435 phone number at the Business level.

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