Here is the full list of all 37 Hermea Playtest achievements.
Complete Olympus Level 1
Complete Olympus Level 2
Complete Acropolis Level 1
Complete Underworld Level 1
Complete Underworld Level 2
Complete Olympus Level 1 under 2:00
Complete Olympus Level 2 under 2:00
Complete Acropolis Level 1 under 2:00
Complete Acropolis Level 2 under 2:00
Complete Underworld Level 1 under 2:00
Complete Underworld Level 2 under 2:00
Complete Olympus Level 1 with no abilities equipped
Complete Olympus Level 2 with no abilities equipped
Complete Acropolis Level 1 with no abilities equipped
Complete Acropolis Level 2 with no abilities equipped
Complete Underworld Level 1 with no abilities equipped
Complete Underworld Level 2 with no abilities equipped
Complete a level with only Hermes' Dash equipped
Complete a level with only Zeus' Favor equipped
Complete a level with only Chronos' Folly equipped
Complete a level with only Artemis' Bow equipped
Complete a level with only Aid of Atlas equipped
Complete the level with only Hades' Best Friend
Stand still in a level for 30 seconds
Play for a total of 2 hours
Use Hermes' Dash a total of 50 times
Use Zeus' Favor a total of 50 times
Use Chronos' Folly a total of 50 times
Use Artemis' Bow a total of 50 times
Use Aid of Atlas a total of 50 times
Use Hades' Best Friend a total of 50 times
Complete a level with the Limited Abilities curse
Complete a level with the Dionysus curse
Complete a level with the Fixed Camera curse
Complete a level with the Kill Barrier curse
Complete a level with the Constantly Changing abilities curse
Complete Acropolis Level 2