Here is the full list of all 15 The Signal State achievements.
Solve Signal Delay Implementation trivially.
Solve Drone Pathfinder without using any Signal Delays.
Solve Min and Max Redesign trivially.
Solve Radio Amplification Circuit without using any logic modules.
Solve Logic Test without any logic modules.
Finish the story.
Complete all required and all optional puzzles.
Solve Optimized Signal Repeater in an extremely efficient manner.
Finish Act 2.
Solve Drone Processor without using any Signal Delays.
Finish Act 1.
Solve Power Regulator using a maximum of 1 VCA.
Create an infinite loop.
Record a GIF.
Complete the tutorial.