Builders of Greece released a free Prologue on Steam.
View: https://www.youtube.com/watch?v=qpGkZ0JyVvo
Immerse yourself in the beautifully recreated golden age of Hellenic city-states. Builders of Greece: Prologue, being a shortened version of the full game, is a great way to try your hand as a ruler of an ancient Greek city-state, practice your management skills, and learn basic game mechanics.