Full story for every stage can be found in download file.

Stage 1
:DSNC Portal Transit: Void Terraforming project, lead researcher's log:

July 8th, Year 1

Got assigned to lead this project after Portal DC-99 was successfully stabilized. A stable, livable area of artificially-generated land was established with use of extra modified stabilizing devices, and management for some reason decided to assemble two carnival rides and build an entertainment center. Not sure why, but "Voidland" officially opened on March 1st of this year.