Achieved bad ending with Achenar.
Achieved one of the brothers' endings while on a randomized playthrough.
Achieved bad ending with Sirrus.
Fill up all of the shelf space for the Red or Blue pages.
Made it through the maze in Selenitic without pressing "backtrack" on a randomized playthrough.
Found the skeleton in the Mechanical Age.
Achieved the good ending within two minutes.
Returned to Myst Island from D'ni.
Achieved the good ending without inserting a single red or blue page.
Achieved the good ending.
Found the white page.
Achieved the bad ending with Atrus.
Solved the fireplace puzzle.
Found a way back from Selenitic.
Solved the piano puzzle in a single try.
Solved the generator power puzzle.
Found a way back from Stoneship.
Solved the compass puzzle.
Raised the sunken ship.
Viewed some dated constellations.
Found a way back from Mechanical.
Solved the gear puzzle inside of the clocktower.
Found a way back from Channelwood.
Found to Sirrus' message to Achenar.
Rode the tree to the highest position.
Opened the safe in the cabin.