Absolutely loved this. Apart from the original game, I don't think I've ever played anything quite like it. It revolves around turn-based combat missions, but the missions happen on a 2D plane and are very much about cover, firing angles and ricochets. You collect a team of steam bots over the course of the story, with 6 classes. Each class has 5 levels with unlocked abilities, personal upgrades and tiered weapons. It adds variety by allowing each hero to take perks from other classes - you can make each character any class by just changing their weapon. There's also overworld combat in your submarine. It's a very lighthearted game like all their others, and is very well polished.