PC/Mac/Linux • There are few games that take over my complete existence for periods of time, where nothing else in the world matters other than taking another turn. The Civilization games will do this, as will most city-builders. Another group of games that I tend to lose myself in for days or weeks at a time come from a small indie developer, Zachtronics. I instantly fell in love with them after my first foray into SpaceChem, and have loved just about everything else they’ve ever conjured up. Their latest is in Early Access on Steam right now and it’s just as good as anything they’ve ever made. If you’re looking for a puzzler that requires actual brain power, logic, and a dose of coding, look no further than Opus Magnum.