This survey will take about 1 minute.
Your answers will help us to improve our website.
Fallout New Vegas
Eureka! Walkthrough
This is a walkthrough for the Eureka! main quest in Fallout New Vegas (FNV). See a detailed walkthrough of Eureka!, list of objectives, how to unlock, best choices, rewards, as well as useful tips for completing Eureka!.
| ◄ Previous Quest | Next Quest ▶ |
|---|---|
| For the Republic Part 2 | - |
List of Contents
Eureka! Walkthrough
| List of Objectives | |
|---|---|
| 1 | Begin Final Battle |
| 2 | (Optional) Flush the Legionnaires |
| 3 | Head to Legate's Camp |
| 4 | Deal With Legate |
| 5 | |
Note: A 
denotes a point where you can end the quest.
denotes a point where you can end the quest.Begin Final Battle
Agree with Colonel Moore to begin the final battle. Depending on the choices you make during the game, major and minor factions may make an appearance to either aid you or fight against you.
| Faction | Appearance Notes |
|---|---|
| Boomers | They will aid you if you completed the Volare! Side Quest and then asked for their help. |
| Great Khans | They will make an appearance if the Khans aren't convinced to leave the wasteland in the Oh My Papa quest. |
| Brotherhood of Steel | They will make an appearance if Still in the Dark Side Quest is completed and a truce between them and the NCR is negotiated. |
| Enclave Remnants | They will make an appearance if you completed the For Auld Lang Syne side quest and asked them to assist the NCR. |
Flush the Legionnaires (Optional)
| Steps to Flush Legionnaires | |
|---|---|
| 1 |  Climb the stairs and then turn right. |
| 2 |  Follow the path until you reach the door to Power Plant 03. Enter to the next room. |
| 3 |  Find and activate the console on the same floor. It requires 65 Science. |
| 4 |  Follow local map quest marker to exit to the dam. |
| 5 |  Activae the pressure release valve. |
Head to Legate's Camp
Head to Legate's Camp outside the dam. Depending on where you exit, you may encounter a squad of NCR soldiers you can ask to support you on your way to the camp, so you won't have to deal with the Legion soldiers on your own.
Deal With Legate
At the camp, on top of a hill, you will find Legate Lanius. You can convince him to leave peacefully if you have a Speech 100 or Barter 100 or you can kill him.
Ending
After dealing with Legate, return to the gate to interact with General Lee Oliver a final time. The game ends with a narration that sums up the effects of the choices you made throughout your playthrough.
You cannot continue to explore the wasteland after the end.
How to Get All Endings and the Best Ending
How to Unlock Eureka!
Complete For the Republic Part 2 Main Quest
After completing For the Republic Part 2, agree to begin the final battle to unlock this quest. Agreeing to proceed will be a point-of-no-return for the game that leads to the ending, locking you out of side quests and exploration.
Eureka! Rewards
No Rewards
Completing this quest will end the game, so no rewards are provided.
Fallout New Vegas Related Guides
List of Neutral Main Quests
| 1 | Ain't That a Kick in the Head |
|---|---|
| 2 | Back in the Saddle |
| 3 | By a Campfire on the Trail |
| 4 | They Went That-a-Way |
| 5 | Ring-a-Ding Ding! |
List of Yes Man Main Quests
List of NCR Main Quests
| 1 | Things That Go Boom |
|---|---|
| 2 | King's Gambit |
| 3 | For the Republic Part 2 |
| 4 | You'll Know it When it Happens |
| 5 | Eureka! |
List of Mr. House Main Quests
List of Caesar's Legion Main Quests
| 1 | Render Unto Caesar |
|---|---|
| 2 | Et Tumor, Brute? |
| 3 | Arizona Killer |
| 4 | Veni, Vidi, Vici |
Comment
Author
Eureka! Walkthrough
Please participate in our site
improvement survey
12/2025
improvement survey
12/2025
Would you assist in
improving Game8's site?
improving Game8's site?
×
We are listening to our users' valuable opinions and discussing how to act on them.
The information collected through this survey will be used for the purpose of improving our services. In addition, the information will only be disclosed a part of a statistic in a format that will not allow identification of personal information.
Begin Survey
Not Now
×
Please rate each item regarding Game8.co's Advertisements.
Amount of Ads
Very Dissatisfied
Somewhat Dissatisfied
Fine
Somewhat Satisfied
Highly Satisfied
Placement of Ads
Timing of Ad Display
Ad Loading Speed
Safeness of Ads
Content of Ads
×
Please rate each item regarding Game8.co's Quality of Articles.
Amount of information
Very Dissatisfied
Somewhat Dissatisfied
Fine
Somewhat Satisfied
Highly Satisfied
Frequency of updates
Speed of new information
Accuracy of articles
Understandibility of articles
Readability of sentences
×
Please rate each item regarding Game8.co's Usability of the Site.
Ease of finding information
Very Dissatisfied
Somewhat Dissatisfied
Fine
Somewhat Satisfied
Highly Satisfied
Loading Speed
Use of Color
Font Size
Visibility of Images
Easy to Understand Layout
×
Please rate each item regarding Game8.co's Message Boards, Comments.
Ease of Writing
Very Dissatisfied
Somewhat Dissatisfied
Fine
Somewhat Satisfied
Highly Satisfied
Readability
Ease in Finding Information
Comment Quality
Comment Quantity
Admin Response
×
Please rate each item regarding Game8.co's Site's new design.
Please rate our site's new design
Very Dissatisfied
Somewhat Dissatisfied
Fine
Somewhat Satisfied
Highly Satisfied
Do you think that the website's design change makes the site easier to use?
Has the new design made it easier for you to find information on the site?
Has the new design improved the overall visual appeal of the site?
How would you rate your overall satisfaction with the new design of the site?
×
How likely are you to recommend Game8 to someone you know?
Very Unlikely
0
1
2
3
4
5
6
7
8
9
10
Very Likely
If you have other opinions regarding potential improvement to the website, please share them with us. We would appreciate your honest opinion.
Note: This is a free response section, so you can proceed without entering anything.
Note: Please be sure not to enter any kind of personal information into your response.
Note: Please be sure not to enter any kind of personal information into your response.
×
Thank You
×
Thank you for participating in our survey! Your answers will help us to improve the quality of our website and services.
We hope you continue to make use of Game8.
We hope you continue to make use of Game8.
Close
Rankings
- We could not find the message board you were looking for.
Gaming News
![Octopath Traveler 0 Review [In Progress] | Familiar, But Better](https://img.game8.co/4357336/fcaf07d58cc243e6b7319ca9b118ba16.png/thumb)
Popular Games
Genshin Impact Walkthrough & Guides Wiki
Umamusume: Pretty Derby Walkthrough & Guides Wiki
Where Winds Meet Walkthrough & Guides Wiki
Honkai: Star Rail Walkthrough & Guides Wiki
Digimon Story: Time Stranger Walkthrough & Guides Wiki
Wuthering Waves Walkthrough & Guides Wiki
Chaos Zero Nightmare Walkthrough & Guides Wiki
Pokemon TCG Pocket (PTCGP) Strategies & Guides Wiki
Pokemon Legends: Z-A Walkthrough & Guides Wiki
Elden Ring Nightreign Walkthrough & Guides Wiki
Recommended Games
Yu-Gi-Oh! Master Duel Walkthrough & Guides Wiki
Fire Emblem Heroes (FEH) Walkthrough & Guides Wiki
Diablo 4: Vessel of Hatred Walkthrough & Guides Wiki
Elden Ring Shadow of the Erdtree Walkthrough & Guides Wiki
Super Smash Bros. Ultimate Walkthrough & Guides Wiki
Monster Hunter World Walkthrough & Guides Wiki
Pokemon Brilliant Diamond and Shining Pearl (BDSP) Walkthrough & Guides Wiki
The Legend of Zelda: Tears of the Kingdom Walkthrough & Guides Wiki
Persona 3 Reload Walkthrough & Guides Wiki
Cyberpunk 2077: Ultimate Edition Walkthrough & Guides Wiki
All rights reserved
©2010 Bethesda Softworks LLC. All Rights Reserved
The copyrights of videos of games used in our content and other intellectual property rights belong to the provider of the game.
The contents we provide on this site were created personally by members of the Game8 editorial department.
We refuse the right to reuse or repost content taken without our permission such as data or images to other sites.