The lawsuit centered around Behaviour Interactive, the game developer that worked on both Fallout Shelter and Westworld, and who Bethesda accused of breach of contract, copyright infringement, unfair competition, and misappropriation of trade secrets. The dispute continued into the year, and in early January 2019 the companies released a simple one-line statement that said both parties "have amicably resolved" the lawsuit.
After all of this, the @WestworldMobile Twitter account this week released its own statement, noting that the game has been removed from the iOS App Store and Google Play Store as of January 15, 2019. This means players can no longer make in-app purchases. On April 16, 2019, the app will officially close and no longer be supported by the developers. The developers warn players to spend any in-game currency before that date.
In the original lawsuit, Bethesda requested the Westworld mobile game to be removed from distribution, so it appears that part of the amicable resolution to the case was the official discontinuation of Westworld on iOS and Android. Users on Twitter asked about potential refunds for the in-app purchases they've already made in the game, but the company has yet to respond regarding this matter.
For those unaware, the similarities between Fallout Shelter and Westworld were striking. Both games task the player with building an underground base of some kind, stocked with interactive characters from a well-known property, and micro-managing small tasks to keep their shelter/Delos facility up and running. Most damning for Westworld and Behaviour Interactive was the discovery that the developer appeared to use the same copyrighted computer code from Fallout Shelter inside of Westworld, down to both games having the same unique bug.
Although Westworld has been removed from the iOS App Store, it still remains online for now, so players who already downloaded it have three months to play the game while it remains online through April 16.