The House Always Wins

The House Always Wins is a main quest divided into eight parts, given by Mr. House in Lucky 38's penthouse, and an achievement/trophy for all platforms.

The House Always Wins I
This is the first in a series of eight quests that leads to one of the many Fallout: New Vegas endings. Mr. House tasks the Courier with retrieving the Platinum Chip from Benny and using it at the Fort to activate the securitron army below, then bring it back to the Lucky 38 so that Mr. House can upgrade them.

The House Always Wins II
For part two of the quest, the Courier must travel to Cottonwood Cove and take a raft to the Fort, where Mr. House's secure bunker is located. If one has already collected the Platinum Chip, Mr. House will return it to them; if not, the player character will need to get it back from Benny when they get there.

The House Always Wins III
One must go to Nellis Air Force Base, befriend the Boomers, or kill them and report back to Mr. House.

The House Always Wins IV
Mr. House asks the player character to deal with the Omertas for him. The player character can achieve this by completing the side quest How Little We Know or killing all the Omertas. Upon doing either, the player character must then return to Mr. House.

The House Always Wins V
Wipe out the Brotherhood of Steel by destroying its underground bunker. House vehemently despises the Brotherhood and will settle for nothing less.

The House Always Wins VI
Protect President Kimball from an assassination attempt on Hoover Dam. Follow Ranger Grant to the observation deck, then tell the Ranger that they are ready and a vertibird will land above the player character.

The House Always Wins VII
The player character must install the override module at the El Dorado substation. Several NCR troops guard the substation and warn the player character that there will be trouble if they enter.

The House Always Wins VIII
Report back to Mr. House once all of the quests given to the player character by him are complete. He will then give them the quest All or Nothing.

Behind the scenes
"The house always wins" is a phrase describing how casino games have an inherent bias toward the casino, or "house," that always wins.