Here is the full list of all 26 The Secret Order 3: Ancient Times achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Adopt the baby griffin!
Begin your journey.
Reach the shores of ancient city.
Act against all odds.
Take a royal flight.
Seek out the Land of Fire.
Seek out the Land of Ice.
Finish a Hidden Object Scene in 90 seconds without any hints.
Finish four Hidden Object Scenes without using a hint.
Finish one mini-game without skipping.
Finish eight mini-games without skipping.
Complete the Game!
Help the innocent in need.
Gain support from the elves.
Gain support from the fairies.
Gain support from the dwarves.
Bring back peace to Forest of Hope.
Collect the Odin rune.
Collect the Heimdal rune.
Collect the Loki rune.
Collect the Aegir rune.
Collect the Freya rune.
Collect the Thor rune.
Collect all of the golden dragons!
Collect all of the amethyst griffins!
Collect all of the turquoise unicorns!