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That's a good broad description of both.

I loved their previous game TRS-100, but Opus Magnum didn't really do it for me for whatever reason. I'm completely hooked on Into the Breach.

Nitpick: Zachtronic's previous game was Shenzhen IO http://www.zachtronics.com/shenzhen-io/, and is definitely worth checking out if you liked TIS-100.