The legendarily classic Simcity2000 is now free to download from Origin. If your old version refuses to run under the latest windows, grabbing it from Origin right now is smart. All older EA titles that are sold through the Origin storefront are updated to run under modern OS'.
The free games on PSN+ aren't worth discussing this month, not even the Vita titles are worth polluting your Vita's memorycard. The only one that might spark your interest is First Light. This is a downloadable game in the Second Son universe and revolves around a girl that can manipulate Neon. (The downloadable skill for Second Son PS4 exclusive.). I've bought this game a while back (the danger of buying games if you're a PSN+ member.) and had some fun with it. It has an open city to explore, but the bulk of the title is a moba with bots. Combat is bogged down with button-combo's, but if you're a joypad-juggler, First Light might be the thing for you.