Myst

To complete the game you need to hit 7 switches located all around the island, it takes about 5 mins.

There's a known bug: after completing the game once (or collecting the white page), the white page won't spawn on your next run, close the game and launch it again, this fixed it for me. Close and reopen after each try.

Now onto the strategy, there's a great video on YouTube showing the current world record run on the original version, it looks a bit different but the buttons are on the same spot (run starts at 15 seconds PLAY ON 0.25 speed):
100% achievement walkthrough is available at: (Credit goes to Brain5454)
Timestamp for this achievement: 1:05:35 (No need to speedrun if you're going for this achievement alone)

Note: to raise the draw bridge the clock needs to show 2:40

Written guide:

Do this achievement on 1993 mode (original). After a cutscene finishes playing there's a book in front of you, click it and hit click on the video, you will spawn on an island. Keep heading forward (ignore the first switch on the dock) up the stairs to reach some gears (switch on the right).

Go down the stairs and follow the concrete path and climb the log stairs. Immediately look right (second switch).

Keep following the path past the sanctum/library, there's a zeppelin and a third switch by it.

Go back to the sanctum/library and head down. There's fourth switch by the water fountain and a fifth switch by the crypt on the right.

From the crypt look directly behind you, there's a little hut with a sixth switch next to it.

Finally, make your way down to the water. Click the contraption and set the time to 2:40, this will raise the bridge to your final switch.

Now, make your way to the switch I told you to ignore and hit it 2x, a page will appear. Take the page to the sanctum/library, there's a fireplace. Click the fireplace to open it and get inside. There's a red switch you need to hit and a pattern you need to enter. Hit the red switch again after you've entered the pattern, see screenshot below.

After you enter the pattern turn around and click the green book and the gif playing inside it. You will be teleported into a different room. Go up to the man sitting behind the desk and click the closed book. he will open it and ask you to insert the page. Click the gif, page and click the gif again. He will take it and close the book. More cutscenes, by the time he teleports away you should have your achievement.