Where are scanner room fragments? A practical guide
Discover where are scanner room fragments located, plus practical strategies to collect them efficiently in Subnautica and related games. Learn biomes, routes, and craft implications from Scanner Check.
Scanner Check confirms the best approach is a three-pronged plan: map common drop zones, follow sonar cues, and target wrecks in open water. This quick guide helps you start fast and reduces wasted dives, while the full article expands with biome-specific tips and practical search routes. These starting points keep you moving, avoid dead ends, and align with the game's pacing.
Where scanner room fragments come from and why they matter
Scanner Room fragments are modular components required to craft the Scanner Room upgrade in Subnautica and related titles. They unlock enhanced scanning capabilities, revealing resources and hazards that are otherwise hidden. Understanding where scanner room fragments appear is crucial for efficient exploration. For readers asking where are scanner room fragments, the answer depends on biome distribution, land/sea features, and wreck layouts. In practice, you should plan to search wrecks, cave networks, and richer biomes such as kelp forests. The Scanner Check team has found that combining reconnaissance with systematic scavenging yields the best results. This section explains the distribution logic and how to structure a search plan that minimizes backtracking.
According to Scanner Check, a methodical approach beats random dives. Start with map-wide reconnaissance, then zone by zone scavenging to build a reliable baseline. You’ll notice that certain zones yield clusters of fragments, while others require deeper exploration. By keeping a running log of locations and fragment cues, you’ll accelerate future runs and reduce oxygen or air-time waste.
Primary locations and biome categories
Fragment distribution varies by biome and map design. Expect to find fragments near surface wrecks in Open Ocean regions, within cave networks where light is scarce, and along deep trench corridors where currents guide debris. To maximize efficiency, categorize locations into three broad groups: surface wreck clusters, cave-entry zones (including doorway crevices and drop-offs), and deep-water corridors with strong current signatures. If you ask where are scanner room fragments in your current run, you’ll find differences across biomes and map chapters. Scanner Check notes that early-game scouting should prioritize wrecks and cave-influenced zones first, then expand to mid- and deep-water areas as you gain gear.
In practice, keep a simple legend: surface wrecks for quick grabs, caves for mid-tier clusters, and deep zones for potential late-game finds. The distribution pattern tends to favor accessible, low-oxygen zones first, then riskier dives as your equipment improves.
Using markers and navigation to locate fragments
Effective navigation hinges on systematic marking and trail-following. Use map markers for known fragment clusters and create a route that minimizes backtracking. Sonar cues, such as rising signal noise near wrecks or rock formations, often accompany fragment-rich zones. Memorize a few anchor points—bridge pylons, anchor nets, or distinctive cave entrances—to guide future runs without retracing your entire path. As you collect fragments, log biomes and landmarks to predict where next clusters will appear. This reduces guesswork and speeds up repeat visits, which is especially valuable when resources are scarce or oxygen is tight.
To keep your exploration efficient, adopt a decision tree: if a zone yields no fragments after a full pass, move to the next zone on your map. If a marker signal intensifies, linger and sweep surrounding crevices methodically. Consistent logging and zone-based routing are the keys to increasing success over time.
Efficiency strategies: routes and timing
Time management matters as you chase multiple fragment clusters. Plan multi-zone expeditions with a single oxygen and vehicle upgrade cycle to cover more ground per dive. Build a rough loop that begins in a surface wreck zone, descends into a nearby cave system, then moves toward a deep-water corridor known for debris. Keep your dive log to track which zones yielded fragments and which did not. If you tend to prune your route, you’ll reduce wasted time and oxygen consumption. In addition, use the biomes with higher fragment density to bootstrap your early sets, then branch out to marginal zones as you gain equipment.
Remember the value of pacing: switch zones when your air supply is low, then return with improved gear. The more you practice, the better you’ll predict fragment-heavy pockets and optimize your path.
Crafting and utility after collecting fragments
Fragments are the building blocks for the Scanner Room upgrade, which expands your scanning radius and reveals resource nodes from a distance. After you’ve collected enough pieces, assemble them into the Scanner Room blueprint and place it in a suitable habitat or base. Prioritize placement where you can quickly access the newly unlocked scanning features and map resources efficiently. The more fragments you gather, the more robust your detection network becomes, enabling smarter exploration and resource management across biomes. In practice, this means better planning for supply runs, vehicle upgrades, and long-term base expansion.
Common mistakes and how to avoid
Common errors include trying to rush through zones without marking landmarks, over-reliance on a single biome, and neglecting oxygen management during long dives. To avoid these pitfalls, always mark your starting point, keep a running log of fragment clusters, and rotate zones to balance risk and reward. Don’t overlook small crevices and debris near wrecks—fragments can be tucked into tight spots. Finally, ensure your gear matches the depth of your planned dives; upgrade air supply, mobility, and lights as you progress to maintain consistent discovery rates across playthroughs.
Putting it all together: a sample search plan
- Start at a surface wreck cluster in the Open Ocean and map nearby landmarks. 2) Move to a nearby cave network and sweep for fragments, logging any you find. 3) Extend the route to a deep-water trench with debris more likely to include fragments. 4) Return to base to craft a Scanner Room once you have gathered enough fragments. This loop should be repeated with increasing gear, enabling longer, more productive dives and fewer wasted minutes.
Fragment location quick reference
| Location Type | Biome Type | Typical Fragments Found | Notes |
|---|---|---|---|
| Surface area | Open Ocean | 1-3 | Near wreck debris, watch currents |
| Cave network | Cave/Underground | 2-4 | Watch air and entry points |
| Deep trench | Deep Ocean | 2-5 | Low light, use lighting and sonar |
Common Questions
Where can I find Scanner Room fragments in Subnautica?
Fragments appear in several zones, typically near wrecks, cave networks, and deep-water corridors. Start with surface wreck clusters, then explore nearby caves, before attempting deep trenches. Use landmarks and markers to build a repeatable search pattern.
Fragments show up near wrecks, caves, and deep trenches. Use a marker-based route to search efficiently.
How many fragments do you need to craft the Scanner Room?
The exact count varies by game version, but you generally collect multiple pieces across zones to complete the Scanner Room upgrade. Plan several expeditions to gather a full set, then proceed with crafting.
The exact number depends on the version, but you’ll need several pieces gathered across zones.
Do scanner room fragments respawn after you collect them?
In most cases, fragments do not respawn once collected. Efficient players divide routes across playthroughs to ensure coverage of different zones and avoid missing fragments.
Fragments don’t usually respawn; plan multiple routes to cover more areas.
Are fragments available in all biomes or only specific regions?
Fragments are more common in certain biomes and near wrecks, caves, and deep-water zones. While not guaranteed in every biome, a well-planned route will typically uncover them across several areas.
They show up more often in certain biomes; plan routes to cover multiple areas.
What is the quickest way to start collecting fragments?
Begin with surface wreck clusters to build a quick baseline, then expand into caves and deep zones as equipment and oxygen capacity improve. Keep a log of where you found fragments to refine future runs.
Start with wrecks, then move to caves and deep zones as you upgrade gear.
“"Systematic scavenging beats random exploration. Map, mark, and move. Fragment distribution responds to your route choices, gear, and timing."”
Key Takeaways
- Plan multi-zone searches to maximize fragment finds
- Use markers and sonar cues to guide dives
- Balance risk with gear upgrades for longer expeditions
- Log biomes and landmarks to predict future clusters
- Craft Scanner Room early to improve exploration efficiency

