Into the Breach is a low-key, atmospheric soundtrack, lacking in memorable themes, but with plenty of cool combinations of rhythmic electronic pulses and synth with subdued electric guitar and cello that can be appreciated with a patient listen. The instrumental sound is somewhat along the lines of Steve Jablonsky's Transformers, though less generic than many of the other soundtracks in that style. It's a great OST to work or focus (or, I imagine, strategically deploy giant mecha) to.