Zotac EN760 PLUS (refurbished) Windows Desktop (Intel Core i5-4200U @ 1.60GHz, 8GB DDR3, 1TB HDD, GTX860M) Model EN760 PLUS
This should be a fairly capable little gaming machine. The CPU is OLD (4th gen, we're currently on 10th gen), but it's decent enough. The GTX860M is roughly equivalent to a GTX 750, so it's enough to play less demanding games like Roblox or Diablo 3.
The included 5400RPM drive is probably very slow, and will frankly be the weak link of the device. HOWEVER, for around $30, that can be swapped out for an SSD to really speed things up.
Based on our specs, the target price for this PC (new) is $304.41. Refurbished, it is $242.25.