About the project
Concordia is Mac Gerdts’ award-winning economic strategy game where 2 to 5 players lead Roman dynasties, sending colonists across the Mediterranean, building trading houses and producing goods. Buying new personality cards both expands your actions and determines your final score through the favour of the Roman gods. Released on BGA in December 2025, the adaptation includes both original maps (Italia and Imperium), optional real-time scoring and the “start without goods” variant.
Challenges and Risks
- Highly anticipated game with strong expectations from the BGA community, and direct comparison with existing digital versions
- Every card action as its own state, with the Diplomat reusing other players’ actions without duplicating flows
- Full rollback capability for every step of a player’s action, including multi-step Architect moves and Mercator trades
- Two map layouts described as data and rendered with a custom auto-zoom
- Real-time scoring of the gods’ favour and a drafting setup for the “start without goods” variant
Mare Nostrum Expansion (in development)
- Sea regions, ship movement and building from harbours
- New land colonists, action boxes and bonuses
- Two board sides (23 and 30 cities)