maybe read my comments in this thread: http://forums.atomic...30-oculus-rift/
re oculus vs rift:
on the platform side of things, in terms of the whole interplay between different pieces of hardware, the portability of SDKs, approaches to DRM and online stores, the question of the relative "openness" of each going forward, and the ramifications for developers and consumers, is more nuanced than what i wrote there (and kinda annoyingly complicated). nevertheless, as it stands now, you play oculus or steam games on the oculus, and although you may never be able to buy oculus 'exclusives' (their only substantial trump card in my view) through Steam, you can play many (most?) of them on the vive through Revive.
on the purely hardware side, it is no contest in my view. even more so now that htc/vive recently brought out the head strap thing with integrated audio, thereby nerfing most of the very slight ergonomic advantages of the oculus. but its really all down to the Lighthouse system. read up on how works under the hood. more elegant, efficient, robust, modular, and future-proof by its very nature.
Steam PC games mainly probably
if he is already familiar with steam, then one unified interface makes it easy. theres also a lot of free-to-play content of all quality levels (and suitability for kids) that would keep him going for hours.
btw, this steam machine is a beast with a GTX 980 or better video card, right?
Edited by @~thehung, 24 September 2017 - 07:07 AM.