Here is the full list of all 10 DYO achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Solve your first puzzle by merging the split screen.
Reach the Crossroad.
Solve all levels on the yellow path.
Solve all levels on the red path.
Solve all levels on the green path.
Finally cross that bridge.
Finish the game.
Help the rat find its hole.
"Accidentally" squash a minotaur.
Shrink a block really small.