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Fallout New Vegas

The House Always Wins IV Walkthrough

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Fallout New Vegas - The House Always Wins IV.png

This is a walkthrough for the The House Always Wins IV main quest in Fallout New Vegas (FNV). See a detailed walkthrough of The House Always Wins IV, list of objectives, how to unlock, best choices, rewards, as well as useful tips for completing The House Always Wins IV.

◄ Previous Quest Next Quest ▶
The House Always Wins III The House Always Wins V

List of Contents

The House Always Wins IV Walkthrough

List of Objectives
1 Complete the How Little We Know Side Quest.
2 Report Back to Mr. House.
┗ Fails Caesar's Legion and NCR quests
Note: A Check Icon denotes a point where you can end the quest.

Complete the How Little We Know Side Quest

Fallout New Vegas How Little We Know Meet Cachino.png

This is a complex side quest with multiple routes, in which you'll either side with Cachino (the “good” option and better for Mr. House), or Big Sal and Nero (the “evil” option and worse for Mr. House). Either way, you can complete the Mr. House main story route without significant trouble, so it's okay to pick the Big Sal and Nero route if that's your bag.

See the full guide below for details on all routes.

How Little We Know Side Quest Walkthrough

Report Back to Mr. House

Fallout New Vegas How Little We Know Report to Mr House.png

Fallout New Vegas Vault BoyWarning! Completing this step will cause you to automatically fail all NCR and Caesar's Legion main quests and exclusive side quests. If you're having doubts, this is your last chance to turn back!

Whatever route you decided to take in How Little We Know, the quest will end when you report the results back to Mr. House. However, if you sided with Big Sal and Nero, Mr. House informs you that he will have to divert his Securitron resources to defending against an attack from the Omertas during the final battle.

Either way, you'll receive your next assignment to investigate the Brotherhood of Steel in The House Always Wins V.

How to Unlock The House Always Wins IV

Complete The House Always Wins III

This quest is received from Mr. House immediately after finishing The House Always Wins III and accepting the next assignment.

The House Always Wins IV Best Choice

Side with Cachino

Fallout New Vegas How Little We Know Sell Cachino the Journal.png

Siding with Cachino by selling him back his Journal during the How Little We Know side quest will ensure that the Omertas do not attack The Strip during the final battle. This choice will also improve your reputation with The Strip.

On the other hand, siding with Big Sal and Nero will cause the Omertas to attack during the final battle regardless of your subsequent actions, and will lower your reputation with The Strip.

The House Always Wins IV Rewards

No Rewards

There are no rewards for completing this quest. All rewards are gained as part of the How Little We Know side quest.

Fallout New Vegas Related Guides

Fallout New Vegas - Story Walkthrough

Complete Story Walkthrough

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

1 Wild Card: Ace in the Hole
2 Wild Card: Change in Management
3 Wild Card: You and What Army?
4 Wild Card: Side Bets
5 Wild Card: Finishing Touches
6 You'll Know it When it Happens
7 No Gods, No Masters

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

1 The House Always Wins I
2 The House Always Wins II
3 The House Always Wins III
4 The House Always Wins IV
5 The House Always Wins V
6 The House Always Wins VI
7 You'll Know it When it Happens
8 The House Always Wins VII
9 All or Nothing

List of Caesar's Legion Main Quests

1 Render Unto Caesar
2 Et Tumor, Brute?
3 Arizona Killer
4 Veni, Vidi, Vici

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