Bethesda Sues Warner Bros for Copying Fallout Shelter With New Westworld iOS Game

Warner Bros' new Westworld game for mobile devices is a "blatant rip-off" of Bethesda game Fallout Shelter, according to a lawsuit Bethesda filed in a Maryland U.S. District Court this week.

At issue are the similarities between the two games. In Fallout Shelter, which was first released in 2015, you run an underground bunker in the Fallout universe, directing your bunker inhabitants to build and run new facilities, go out on expeditions, and more, with the ultimate goal of building up the bunker.


Westworld, based on the popular HBO show and released this week, uses a similar concept, with an underground Delos facility that players are required to build out to create AI hosts and satisfy guests in the park. The ultimate goal is to build up your underground Westworld facilities along with the above-ground park.


In the lawsuit, which was shared by Polygon, Bethesda accuses Warner Bros and game developer Behaviour Interactive of breach of contract, copyright infringement, unfair competition, and misappropriation of trade secrets. Behaviour Interactive worked on both Fallout Shelter and Westworld.

The Westworld game, says Bethesda, uses the same game design, art style, animations, and features as Fallout Shelter, in addition to stealing copyrighted computer code created for Fallout Shelter. As evidence for this, Bethesda claims Westworld has a unique bug that was also found in early builds of Fallout Shelter.

falloutshelter

Fallout Shelter

According to Bethesda, Behaviour Interactive utilized its restricted access to Bethesda's intellectual property, including copyrighted code, to reduce costs and development time to bring Westworld to market faster.

The Westworld game is a blatant rip-off of FALLOUT SHELTER. Working with the same copyrighted computer code used by FALLOUT SHELTER, Westworld has the same or highly similar game design, art style, animations, features and other gameplay elements as FALLOUT SHELTER, all of which are owned by Bethesda.

Behaviour's breach of its contract with Bethesda is evidenced by the gameplay of Westworld, which uses the same copyrighted computer code created for Bethesda's FALLOUT SHELTER game. Behaviour's use of the computer code owned by Bethesda to develop Westworld even included the very same 'bugs' or defects present in the FALLOUT SHELTER code.

It's impossible not to see the similarities between Fallout Shelter and Westworld, and as is pointed out in the lawsuit, several reviews and stories on the Westworld game that have come out over the last few months have noted those similarities. VentureBeat, for example, said in March that the "side-view user interface looks a lot like Fallout Shelter," while ShackNews said "Westworld mobile is definitely taking a page out of the Fallout book," during the same timeframe.

westworld

Westworld

In light of the alleged intellectual property theft, Bethesda has asked the court for a jury trial, statutory damages, and actual damages, along with restitution and lawyers fees and costs. The company is also asking for every version of the Westworld mobile game to be removed from distribution.

Popular Stories

maxresdefault

Apple Shows Off a Key Reason to Upgrade to the iPhone 17

Saturday February 7, 2026 9:26 am PST by
Apple today shared an ad that shows how the upgraded Center Stage front camera on the latest iPhones improves the process of taking a group selfie. "Watch how the new front facing camera on iPhone 17 Pro takes group selfies that automatically expand and rotate as more people come into frame," says Apple. While the ad is focused on the iPhone 17 Pro and iPhone 17 Pro Max, the regular iPhone...
apple wallet drivers license feature iPhone 15 pro

Apple Says These 7 U.S. States Plan to Offer iPhone Driver's Licenses

Monday February 9, 2026 6:24 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps. The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future. To set up the...
m5 macbook pro deal

Why You Shouldn't Buy the Next MacBook Pro

Tuesday February 10, 2026 4:27 pm PST by
Apple is planning to launch new MacBook Pro models as soon as early March, but if you can, this is one generation you should skip because there's something much better in the works. We're waiting on 14-inch and 16-inch MacBook Pro models with M5 Pro and M5 Max chips, with few changes other than the processor upgrade. There won't be any tweaks to the design or the display, but later this...
iOS 26

Apple Releases iOS 26.3 and iPadOS 26.3

Wednesday February 11, 2026 10:07 am PST by
Apple today released iOS 26.3 and iPadOS 26.3, the latest updates to the iOS 26 and iPadOS 26 operating systems that came out in September. The new software comes almost two months after Apple released iOS 26.2 and iPadOS 26.2. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. According to Apple's release notes, ...
Apple Logo Zoomed

Apple Expected to Launch These 10+ Products Over the Coming Months

Tuesday February 10, 2026 6:33 am PST by
It has been a slow start to 2026 for Apple product launches, with only a new AirTag and a special Apple Watch band released so far. We are still waiting for MacBook Pro models with M5 Pro and M5 Max chips, the iPhone 17e, a lower-cost MacBook with an iPhone chip, long-rumored updates to the Apple TV and HomePod mini, and much more. Apple is expected to release/update the following products...

Top Rated Comments

Michael Goff Avatar
100 months ago
Very interesting. I would think HBO will argue that their game is a type of "genre", and thus can't infringe on copyright - similar to many driving, racing, or fighting games. However it does look almost identical, and Bethesda is one of the few mobile developers with a bank account.
It's not just that it looks similar, it apparently has some of the bugs that Fallout Shelter had in the beginning. They're claiming the company that they paid to make Shelter took the code and basically sold it again.
Score: 12 Votes (Like | Disagree)
nwcs Avatar
100 months ago
1st
Congratulations. You win 10 internet points.

On topic: It sure looks like infringement. Normally I wouldn’t think they would have a chance but there’s enough here and if the bug is specific enough that was apparently duplicated they might convince someone that there’s fire with that smoke. Good luck to them, though. It’s not easy to win these.
Score: 10 Votes (Like | Disagree)
ActionableMango Avatar
100 months ago
Boy you can really tell who read the article before commenting, and who didn't.
Score: 8 Votes (Like | Disagree)
100 months ago
Downloading Westworld NOW before it gets pulled. Also mastered Fallout Shelter.
Score: 8 Votes (Like | Disagree)
100 months ago
My bet is Bethesda will lose.
Why? I think Bethesda has grounds for the lawsuit and and a lot of the elements of the game are carbon copied from Fallout shelter.
Score: 8 Votes (Like | Disagree)
100 months ago
As an IP attorney that played both games, this will come down to the vagrancies of the contract. It's a complete loser as a straight up IP lawsuit.

The plaintiff faces a tough task -- all of the presumptions will be on the defendant's side.
Score: 7 Votes (Like | Disagree)