Fallout water chip guide: leads, Necropolis and Vault 13
Follow the opening water-chip investigation and distinguish it from the later mutant campaign.
Edition covered
The original 1997 turn-based Fallout on PC, without total-conversion mods. Publisher pictures show the original game. This is separate from Fallout 2 and the later first-person Fallout games.
Track the opening deadline
The water-chip task begins with 150 days. Travel and resting consume time. Prioritize the investigation while using nearby tasks to improve equipment and skills.
| Stage | Location or lead | Purpose |
|---|---|---|
| Briefing | Vault 13 | Learn the water failure and deadline |
| Early investigation | Vault 15 | Follow the initial lead |
| Information gathering | Settlements and the Hub | Find a more promising destination |
| Water-system investigation | Necropolis | Locate the relevant underground facilities |
| Delivery | Vault 13 | Resolve the opening chip task |
Follow leads through settlements
Vault 15 is an early lead, while settlements and the Hub provide more information. Talk to contacts and read the Pip-Boy rather than wandering across unexplored squares without a destination.
| Check | Reason | Action |
|---|---|---|
| Days remaining | Travel and rest take time | Review the Pip-Boy |
| Combat supplies | Random encounters can interrupt | Carry ammunition and healing |
| Useful equipment | Routes can require tools | Keep exploration items |
| Local water consequences | Taking the chip affects another settlement | Investigate repair options |
| Delivery status | Possession is not completion | Return to the Overseer |
Prepare for Necropolis
The chip is connected to the water system beneath Necropolis. Explore carefully and consider the local ghouls' water problem; completing your mission can affect people already relying on that supply.
Return the chip before chasing the larger threat
Obtaining the chip is not the same as completing delivery. Bring it back to Vault 13 and then follow the subsequent investigation. The later mutant conflict is a separate campaign stage.
Obtaining the chip is not the same as completing delivery. Bring it back to Vault 13 and then follow the subsequent investigation. The later mutant conflict is a separate campaign stage.
References
| Reference | Website |
|---|---|
| Fallout publisher listing | store.steampowered.com |
| Interplay Fallout manual | store.steampowered.com |
| Original-game walkthrough and locations | strategywiki.org |