Designs? Nothing extravagant I don't think, I was designing a titan at the time as well. Neutronium armor, sheilds, Muon guns, Superdense lasers. That and some custom gunboat/missileboat/beamboat designs, a mining capital I nicknamed the fissure, a custom scout design...
As for text files, the folder also has settings.txt, mods.txt (No mods so that's empty) and something named "SR2_2015-6-9_22-7-10.mdmp" (What I presume is a minidump). That's empty as well however, and I can't seem to get one to appear again.
If it is required I can upload the full folder.
EDIT 2: Before it is asked, research was basically up to Ringworlds, Antimatter Generators discovered from an artifact. Neutronium armor to sheilds down that line over to graviton thrusters. Megacities was beelined as were Muon cannons.