Bethesda Announces Fallout Mobile Game at E3 2015, Launching Tonight

Tonight at Bethesda's E3 briefing, the company, Bethesda Game Studios director Todd Howard not only talked more about Fallout 4, but also revealed a new Fallout mobile game called Fallout Shelter.

The game launches tonight on iTunes as a free download. The game will offer some microtransactions for purchase, but Howard stresses there are no paywall times and you don't need an Internet connection.

Watch a gameplay trailer for Fallout Shelter below.

Fallout Shelter lets you build your own vault and act as its "overseer." Basically, you control all the people inside the vault and must keep them productive and happy.

This includes sending couples into the bedroom, which "increases happiness," Howard said. As overseer, you are also charged with naming babies in your vault that are the result of this "increased happiness."

Howard went on to explain that Fallout Shelter was inspired by games like XCOM, SimCity, and FTL.

We'll have more on Fallout Shelter as it becomes available.

For more on Bethesda's E3 show, check out a roundup of all the big news here.