Here is the full list of all 33 The Secret Order 4: Beyond Time achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Helped Nubi triumph by collecting the runes.
Entered the Hall of Eternity by taming Cerberus.
Helped the Guardian escape by collecting the Lights.
Crossed the River Styx with Charon.
Successfully entered the Realm of the Dead.
Collect every eagle mask.
Collect every crocodile mask.
Finished all Minigames without skipping.
Successfully prepared the ritual, saving everyone.
Collected the Eagle Talisman.
Finished all HOPs without any hints.
Stabilized the village.
Collect every jaguar mask.
Helped Ovando appease Cleopatra.
Collected the Jaguar Talisman.
Restored the energy circle for the creatures of the cave.
Helped Tesla and Leonardo repair the airship.
Collected the Crocodile Talisman.
Finished six HOPs without any hints.
Finished a HOP in 60 seconds without any hints.
Helped the crocodile reunite with her family.
Turned the frigate into an airship with Leonardo's help.
Finished eight Minigames without skipping.
Reached a land beyond time and space.
Finished three HOPs without any hints.
Left a message for your father.
Successfully entered the inner tomb.
Found a way to Egypt.
Finished four Minigames without skipping.
Take care of little Nubi.
Uncovered Omar's hidden shelter.
Helped Flavius access his workshop again.
Finished one Minigame without skipping.