If you like turn-based tactical battles mixed with open world exploration, you pretty much owe it to yourself to go and pick up Tenderfoot Tactics. Released only recently, to which I gave it a very positive look, Tenderfoot Tactics has a seriously enchanting theme to it while you're exploring.
Thinking on it, Tenderfoot might be up there in my biggest highlights of this year. You explore a world that is being consumed by some sort of evil Fog, turning everyone into ghostly forms as you and your pals go on a real-time overworld exploration adventure to try and save the world. While doing so you get to slide down mountains, meet great big creatures and have tactical turn-based battles where the environment can be messed with.
Just be warned, it's quite a challenge. The exploration side of it is lush, where you can happily get lost and the combat is such a stark contrast where every move counts - it's a mix that's odd due to the different feeling but also great. If you're after a game that you can easily sink a good 20 hours into and you like the mix of exploration and strategy, then you should just go and buy it right now.