Shadow Runner is a 20-minute singleplayer puzzle map in which you use "Time Machines", devices that record your movements for 10 seconds, then create a shadow version of yourself that copies every move you recorded, including standing on pressure plates and such.
The map contains 3 chapters and lore, each chapter developing the Time Machine in a new direction.
Shadow Runner will test your ability of thinking forward in time through a series of intricate puzzles, some of which may require timing.
Please report any bugs that you find. I have playtested the map about 5 times, making adjustments where I deemed fit.