Microsoft is once again expanding its portfolio of games studios. The company announced yesterday that it is adding Obsidian Entertainment, creators of Fallout: New Vegas and Pillars of Eternity, and Inxile Entertainment, the studio behind Wasteland 2 and The Bards Tale IV, to its growing list of Microsoft Studios. Microsoft’s plan to acquire Obsidian has been an open secret for a month, since Kotaku’s Jason Schreier reported on rumors to that effect in October. InXile is more of a surprise, but the company has a similar RPG-heavy focus and roots that date back well into role-playing history: Interplay founder and CEO Brian Fargo left the company in 2002 and started inXile. Microsoft announced the acquisitions Saturday at XO18, held in Mexico City, and it’s part of a recent trend that’s developed since the company made a significant overhaul to its games division leadership. At E3 this summer, the company announced it was acquiring Forza studio Playground Games, Ninja Theory (who created Hellblade: Senua’s Sacrifice), State of Decay creators Undead Labs, and Compulsion Games, makers of We Happy Few.