As a zachtronics' fan I also recommend "Opus Magnum" and "Exapunks". In Exapunks you need to learn a new assembly-like language and use it to command your robot

As a zachtronics' fan I also recommend "Opus Magnum" and "Exapunks". In Exapunks you need to learn a new assembly-like language and use it to command your robot agent. I had a ton of fun in it. I remember I only played the first few challenges of Human Resource Machine. The puzzles felt a little too easy, and solving them wasn't very challenging, so I never went on to the later parts.