Here is the full list of all 25 Hermes: The Fury of Megaera achievements.
You removed all obstacles along the way.
You repaired Hephaestus's forge.
You cleaned the body of water.
You stopped the Drought.
You healed people.
You drove away nine satyrs.
You discovered the secret path.
You traded with the merchant four times.
You made six offerings to the Altar of Zeus.
You eliminated five revenge balls.
You fought six cyclopes.
You isolated the Brotherhood.
You drove away nine Keres.
You returned the fishing boats to the sea.
You drove away 12 Centaurs.
You replenished vivifying energy five times.
You captured three negative-energy clusters.
You drove away ten flocks of bats.
You drove away the wolves.
You repaired the statue of Perseus.
You returned the threads to the Moirai.
You drove away the four Stymphalian Birds.
You summoned Hades.
You drove away Gello.
You revived the Cave Nymph.