[Ruriko]

Can anyone give me an estimate on how many hours you get just by playing any 3D games on the XL? assuming you have no other apps running

[Matty]

Can anyone give me an estimate on how many hours you get just by playing any 3D games on the XL? assuming you have no other apps running

I see you also posted the same question on the "xda developers forum"

Hopefully the below quotes help!

According to "wired.co.uk"

During our tests, the Pixel XL lasted more than 24 hours. In that time we streamed music, downloaded eight apps, had notifications switched on all day and watched three short YouTube videos, plus played Pokémon Go for about an hour.

According to TrustedReviews.com

Graphics-intensive games – I was using Modern Combat and Real Racing – eat through about 13-15% per hour, with lesser demanding titles (Dots, Alto’s Adventure, and so on) using about half of that.

[Topweasel]

The full answer not the best not the worst. Between the screen, the resolution, and CPU performance it can go through battery pretty quickly. What it does better than any other Android is battery management. It's extremely frugal with power usage when not doing anything.

That said the Battery is still decently large and will last a long while.

[Devlyn16]

Dont forget that fast charging gets you back up and running when the games do suck you dry.