Amazon’s Lumberyard game engine is now open source '); } Amazon announced the move in concert with the other founding members of O3DE, which include Adobe, Huawei, Niantic and RedHat among its 20 founding members. The move is being overseen by The Linux Foundation, who is acting in part to “accelerate developer collaboration on 3D game and simulation technology.” It’s a welcome, though head-scratching new waypoint on Amazon’s oft-waylaid journey into game development. Lumberyard emerged in 2016 as a licensed branched version of CryTek’s CryEngine, and was supposed to be a foundational tool for in-house games built at the studio.