Probably depends, to a point, on how many hoops you'd want to jump through to play games on it. Getting access to the most games you can with it will mean partitioning the already-small SSD for Boot Camp (technically modular, but Apple has their own slot for it, so options to upgrade are limited). RAM is soldered in, so hopefully they bought it with 8GB or it's going to suck for 10.12 or further.prfsnl_gmr wrote: My parents were getting rid of there old MacBook Air, and I’m going to take it off their hands. It’s a 2013 model. I’m planning on wiping the hard drive and performing a factory reset. Once I do that, I’m going to put Steam on it. I assume it’ll be powerful enough to play some indie games like Doki Doki Literature and, maybe, some older inexplicable PC exclusives like Legend of Grimrock II. I don’t plan on throwing the latest spec intensive AAA titles on this thing, it I would like to know ho wear I can push it. Any thought on what this thing will be able to do?
That said, there are likely a fair number of Mac ports available, and Steam generally just gives you access to all the ports of a game you get on it.
Setting aside thermals/etc, it's only got Intel HD Graphics 5000 which will largely struggle to run titles that were current when it came out, much less after. Legend of Grimrock II specs a slightly better GPU at minimum.
Older or less demanding titles should be able to do well though.
IMO... if you dual boot to Windows, it'll probably do fine with pre-2010 titles provided they have DirectX 9 support or better (came out in 2002 so many earlier 2000s titles would be). Older versions may take additional tweaking. Plenty of lighter software, like VNs, would be fine anyway.
If intending to play games under macOS, I would keep it at Mojave, if not High Sierra. Catalina cut off support for non-64-bit applications. On the other end of that, the first version of OS X that eliminated support for PPC applications was Lion, in 2011, meaning not all of the games that would technically run well on the GPU may have gotten an appropriate update. Mac software support is fragmented, to say the least.
Might do fine with a lot of available-via-DOSBox titles too, which are likely spelled out more on GoG.
I would keep expectations low though. It should still be a pretty solid general use/internet type machine, if it's got that 8GB in it. Apple basically continued to sell a barely upgraded version through most of 2018. The low dpi screen really stood out, but the chassis/keyboard/etc were solid. Just wasn't really designed to game, or for other heavy tasks.