Mass Effecting the Thousand Suns is a fan written hack of TS for replicating the Mass Effect series of video games. The author has freely provided the PDF via the Internet in the past so it has been made available here without his express permission.
Link: https://drive.google.com/drive/folders/1bXPj-x1OCE5y205bhpoz-oc-49ZYUVBa?usp=sharing