User blog comment:Lost Labyrinth/The Sims 4 will be released exclusively for mobile devices/@comment-2133744-20140401150740/@comment-2201555-20140402235145

The only DRM it has attached is the game being tied to an Origin account. You could technically sell on the prior titles as the CD keys weren't activated online (barring TS3.com but you don't need that to play anyway) but now The Sims 4 is going to be authenticated online, you just don't need to be online to play.