ScannerPlus

ScannerPlus 

Author: MikederUnwissende2

Mod Version: 0.1

Target Game Version: Subnautica 2 EA 0.1.2.0-123362 (119691)

Build Date: 2026-08-27

Versioning scheme

The first three numbers follow the supported Subnautica 2 version.

The final number is the ScannerPlus build number.

Overview

ScannerPlus is a lightweight exploration aid for Subnautica 2.

Instead of manually searching every cave, wreck and facility for missed collectibles or scan targets, ScannerPlus searches the currently loaded area around the player and points to the next relevant unfinished target using Subnautica 2's native ping system.

It currently supports Scannable Objects, Data Cards, Black Boxes, Quartz Chips and Player Upgrade Terminals.

After a target has been completed, ScannerPlus automatically searches for the next one. The scanner can be toggled on or off at any time with the P key.

Requirements

ScannerPlus was developed and tested with:

- Subnautica 2 Early Access 0.1.2.0-123362 (119691)

- UE4SS (d7e7826d)

Installation

Manual installation is recommended.

Extract the included "ScannerPlus" folder into:

[Steam Library] steamapps common Subnautica2 Subnautica2 Binaries Win64 ue4ss Mods

The resulting structure should be:

... ue4ss Mods ScannerPlus

The required enabled.txt file is already included in the archive.

Vortex installation may also work, but has not been fully tested with ScannerPlus.

If you experience problems, please use the manual installation method.

Configuration

ScannerPlus does not currently use a separate configuration file.

Several values can be adjusted directly near the beginning of the Lua files, including search range, distance ring size, monitoring intervals and debugging options.

Users familiar with Lua may edit these values manually if they want to change the default behavior.

Target Selection

ScannerPlus searches for supported incomplete targets within a maximum range of 1000 meters.

Targets are grouped into distance rings. The nearest available distance ring is preferred. If multiple target categories are found within the

same ring, the configured category priority determines which target is selected.

Only currently loaded world actors can be detected. The configured 1000-meter range therefore does not guarantee that every object within 1000 meters is available to ScannerPlus.

Detection Range

ScannerPlus is configured for a maximum search range of 1000 meters.

In the current game version, Subnautica 2 appears to keep relevant world actors loaded only within approximately 250 meters around the player.

Because ScannerPlus can only search actors currently available to the game, the effective detection range is therefore usually much shorter.

The 1000-meter limit is intentionally kept in place in case the game's streaming behavior changes in future versions.

Known Limitations

ScannerPlus searches currently loaded game actors. Depending on the distance to potential targets and the number of loaded objects, a scan may cause a short game stutter.

On older hardware, a full search may temporarily pause the game for approximately 0.2 seconds or more.

If ScannerPlus is enabled but no valid target is found, it automatically repeats the search every 30 seconds. Especially in late-game situations with few remaining targets, it may therefore be preferable to disable ScannerPlus and activate it only when needed.

Some objects may occasionally spawn inside terrain or otherwise become difficult to reach due to level geometry. In such cases, disabling the scanner, moving away from the area and enabling it again may select a different nearby target.

Compatibility

ScannerPlus was developed specifically for Subnautica 2 Early Access

0.1.2.0-123362 (119691).

ScannerPlus uses existing Subnautica 2 classes and gameplay systems.

Future game updates may change some of these internal interfaces and could require an update to ScannerPlus.