Primary use
Repairing early progression objects and stabilizing base/tool loops.
Fragment unlock
Repair Tool Guide
Complete two Repair Tool scans, then prepare its Titanium Ingot, Wiring Kit, Basic Battery and Sulfur. Choose the second fragment stop according to your oxygen and return route.
Quick answer: Scan two Repair Tool fragments, then craft it with 1 Titanium Ingot, 1 Wiring Kit, 1 Basic Battery and 1 Sulfur at the Fabricator. Start at Chap base and choose either the south wreck or northeast wreck for the second scan; the third location is a fallback.
Reviewed .
Route and unlock plan
Chap base first, then either the south wreck or northeast wreck for scan two.
Step 1
Scan the easiest route first
Chap base is the cleanest first stop because it is a small base route rather than a deeper wreck interior.
Step 2
Choose one wreck for scan two
EA 1.2 only requires two scans, so use either the south wreck or northeast wreck after Chap base.
Step 3
Keep the third route as a fallback
Use the remaining wreck only if it fits another scan trip or the first option is awkward in your save.
Step 4
Prepare the finished components
Craft with 1 Titanium Ingot, 1 Wiring Kit, 1 Basic Battery and 1 Sulfur. Loose Titanium does not replace the ingot. If you need a fresh battery, its inputs are 2 Copper and 1 Acidic Raion Pouch.
Map and route
Open a marker to follow the nearby route and plan your return trip.
blueprint
Repair Tool at Chap's base
PC Gamer places this fragment about 220 m southeast of the Lifepod inside Chap's base.
About 40 m cave base / PC Gamer Repair Tool guide
blueprint
Repair Tool south wreck sofa
Swim directly south across the deep gap about 300 m from the Lifepod.
Wreck interior / PC Gamer Repair Tool guide
blueprint
Repair Tool northeast wreck door
PC Gamer places this wreck about 60 degrees northeast of the Lifepod and roughly 380 m away.
Wreck interior / PC Gamer Repair Tool guide
Player decisions
| Question | Status | Rule |
|---|---|---|
| First scan | Chap base route | Best first stop when you want less wreck-navigation risk. |
| Second scan option A | South wreck | Good after oxygen upgrades or stronger route discipline. |
| Second scan option B | Northeast wreck | High-value when you want a multi-scan trip; no third Repair Tool scan is required. |
| Main risk | Wreck exits | The danger is usually losing the exit line, not the fragment itself. |
Gameplay notes
Official EA 1.2
Unlock requirement
The Repair Tool now unlocks after two scans.
Three route leads
Known route count
Chap base, south wreck, and northeast wreck give players a choice of second scan.
Route markers
Coordinates
Navigate from the Lifepod using the named wreck and habitat landmarks, then check each fragment scan before moving to the next stop.
Build 128456 review
Recipe costs
One each of Titanium Ingot, Wiring Kit, Basic Battery and Sulfur. The linked recipe distinguishes the finished components from their raw materials.
Useful links
Early Access 1.2: Buddy System
Official source for the change to a two-scan Repair Tool unlock.
Sub2Wiki Repair Tool recipe
Ingredient quantities reviewed for build 128456 and the battery material chain.
PC Gamer Repair Tool guide
Primary public guide for the three Repair Tool fragment route leads.
Sub2Wiki Repair Tool fragments
Fragment locations, navigation landmarks and oxygen preparation.
Sub2Wiki map
Route markers for fragment planning.
Questions people ask
Where should I scan the Repair Tool first?
Start with the Chap base route if you can reach it safely, then choose either the south or northeast wreck for scan two.
How many Repair Tool scans are required?
Two scans are required after EA 1.2. Choose from Chap base, the south wreck and the northeast wreck according to your equipment and oxygen supply.
How should I use the Repair Tool map markers?
Use the markers to choose a route to Chap's base or a wreck, then follow the nearby landmarks to the scan. Plan enough oxygen for the return trip.
Related pages
Repair Tool recipe
Exact components and the Basic Battery material chain after two scans.
Repair Tool fragments
Two required scans, three known route choices, and the marker table.
Wakemaker
Early movement route that helps safer exits.
Crafting
Connect unlocked tools back to station and recipe checks.
Chap base marker
Open the first Repair Tool route lead.