Turing Complete is a game that guides you through building a computer from simple logic games. In each level you build a circuit that passes the given tests to unlock that as a component for future levels. Your solution to each level is stored in a (.data) file that can be opened online with TuringGoesBrr. With this site, you can even export your Turing Complete circuits to other formats such as Logisim (.circ) or even Minecraft redstone (.nbt).
To find your game save folder, open Turing Complete, select "Settings" from the main menu and scroll down to the bottom.
The default setting depends on your operating system:
Windows:
MacOS: ~/Library/Application Support/godot/app_userdata/Turing Complete
Linux:
Within your save folder, the schematics folder has a subfolder for each level. The circuit.data file is your latest save from that level. With the other circuit_backup_n.data files storing previous iterations of your design.
The .data file is a raw binary file that cannot be viewed in normal text editors. It uses Google's Snappy compression format to reduce file size. The first byte is never compressed and indicates the version of the save format used (from 1 to 6, in October 2022). The game's creator provides a library, called save_monger, written in Nim (can be compiled to JavaScript or native assembly code via C) that parses the binary file into a useable object representation.