bio-Synthetica's Database plugin is complete. Players will be able to find and unlock various tutorials and lore as they reach certain points. There are 5 categories of files you can unlock: Audio Clips, Data Files, Bestiary, Earth History, and Tutorials.
My favorite kind of progress? Reverse progress! First, change some small feature of your game. Second, go back through and change 6,000 tiny things related to that minor alteration just to get your game playable again. What fun!