Invisible, Inc. was released back in May, but I've only just got around to trying it out - I played a bit of the early-access version, but not enough to form a solid impression of it. Going back in I've found it to be very polished and enjoyable, though I haven't spent a lot of time on it yet. However, while choosing a difficulty setting and reminding myself how the game works, I found myself musing on undo buttons in games (or the equivalent, save-scumming).

I bought Cities: Skylines not long after it came out, having enjoyed 20 hours of Simcity 4 according to Steam - it felt like longer, in a good way. My initial impressions were good, but somehow I didn't manage to really get into it, though I played long enough to get near the final city size milestone (when you attain certain population sizes, you unlock new buildings, features and extra land to build on - in a nice touch, the game comes with a dev-made mod to remove this progression and unlock everything immediately if you so choose). Recently I made some time, being tempted by the recent-ish patch which added European style buildings, and have now got up to 25 hours, enjoying nearly every minute.