To scan objects in Blind Descent, pick up the handheld scanner found along the starting path, aim directly at an unfamiliar plant, creature, or structure, and hold your scan button until the analysis completes. The game's subterranean Martian environment hides crucial survival recipes behind this single mechanic, making your scanner essential for identifying edible flora, discovering tool blueprints, and revealing enemy vulnerabilities.
How to Find and Equip the Handheld Scanner
When you first survive the elevator crash into the Hyperion excavation site caverns, your inventory starts completely empty. You will not have the scanning tool in your hands right away.
- Follow the linear opening cave passage until your AI companion, Holowatch, comments on the underground environment.
- Advance through the cave toward the first open clearing with alien vegetation and earth-like fauna.
- Keep an eye on the ground along the main trail. Holowatch will announce: "I'm detecting a scanner up ahead. You should pick it up. Someone from the crew must have dropped it."
- Walk up to the discarded tool (identified in dialogue as Jake's scanner) and press your interaction key (F) to pick it up.
- The device equips into your active hands, ready for field analysis.
Step-by-Step: How to Scan in Blind Descent
Scanning requires direct line of sight and steady crosshairs on the target entity.
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- Draw the Scanner: Equip the scanner so it is visible in your character's hand.
- Center Your Crosshair: Point your view directly at the specific target you wish to analyze. In Blind Descent, scanning is pinpoint-dependent; you must aim at the specific part of an organism (such as a plant's pod or stem) rather than its general vicinity.
- Hold the Scan Input: Hold down your primary action/scan input. A scanning progress animation will appear on your interface.
- Maintain Aim Until Complete: Keep your crosshair trained on the subject until the scan circle fills. Moving your view away or having an entity sprint out of range cancels the process.
- Read the Visor Report: Once finished, Holowatch will display the subject's biological profile, edibility status, elemental traits, and any unlocked blueprint recipes.
What Scanning Reveals and Unlocks
Scanning is not just an informational tool; it functions as the primary progression system for crafting and survival analysis.
- Crafting Blueprint Unlocks: Analyzing local resources unlocks their associated crafting recipes in your handcrafting (C) and workbench interfaces. For example, scanning trees and branches reveals blueprints for the wooden chest plate, wooden leg plates, water skin, and stone tools.
- Toxicity and Edibility Warnings: Martian flora looks deceptive. Scanning reveals whether a fruit, bulb, or kernel is safe to consume or carries hazardous status effects. Holowatch flags dangerous items with warnings like "This one is poisonous... Keep it off your menu" or confirms items like peeled kernels and blue bullrushes as safe, hydrating nutrients.
- Elemental Vulnerabilities: Scanning hostile organisms reveals biochemical traits. For instance, scanning the invasive pink infection masses and infected entities reveals a critical structural weakness to acidic compounds, directing you to craft acid flails and acid-tipped arrows.
- Environmental Lore and Codex Data: Scanning unique story artifacts—such as the suspended infected body, non-standard expedition equipment, and ancient alien structures—logs entries into your codex and updates Holowatch's mission analysis.
Key Early-Game Scanning Targets
To build your initial base and maintain personal health, focus your scanner on these specific targets as soon as you find the tool:
| Target Name | Category | Primary Information / Unlocks |
|---|---|---|
| Local Trees & Small Trees | Flora | Unlocks wooden armor recipes (leg plates, chest plate) and tool foundations. |
| Glowing Orbs / Lunar Light | Flora | Unlocks basic lighting recipes and the wearable Lunar Light Lantern. |
| Alien Kernels / Succulents | Flora | Identifies baseline nutritional value and toxicity levels. |
| Infection Clumps & Postules | Hazard / Anomaly | Reveals gas hazard warnings, exponential spread risks, and weakness to acid. |
| Fauna (Crabs, Mites, Tortoises) | Fauna | Catalogs harvesting requirements (such as requiring a knife) and biological weaknesses. |
| Outpost Modules & Broken Devices | Structure | Unlocks repair requirements, cable replacement needs (such as vines), and system diagnostics. |
Troubleshooting Scanning Issues
- The Scan Resets Midway: If the scanning circle drops back to zero, your crosshairs likely slipped off the target hitbox. Fast-moving animals like Martian rabbits frequently interrupt scans; try cornering them or tracking their movement smoothly.
- Target Prompts "No Crafting Potential Detected": Certain decorative plants, ambient rocks, or aggressive trap flora do not yield crafting recipes. The scanner will still categorize their behavioral traits (such as "Aggressive" or "Toxic") even if no blueprint is gained.
- Codex Screen Appears Empty: In early playtest and demo versions, inspecting logged entries via the journal menu (N) may occasionally display blank entries despite a successful scan. The immediate HUD overlay provided upon completing the scan remains the most reliable readout for unlocked items.
