About This Game

A board game among the stars

Efemeris is a turn-based board game of exploration and conquest. Two fleets face each other across a star map that does not exist yet — you build it, one tile at a time, as you explore.

Ten turns. Five planets to conquer. One winner.

Play at your own pace

• Solo — face an AI opponent that drafts its captains, plays its crew cards and races you to the fifth planet.
  
• Two players — duel a friend across PC, Android and iOS. One buys it on Steam, the other plays on a phone.

Three nations, three ways to win

Choose the British Royal Navy, the French Royal Navy or the Spanish Armada. Each fields its own captains and its own crew members — the Governor who negotiates a planet's price down, the Lady of the Night who fills your holds, the Gunner without whom no shot is ever fired.

Pick two captains and five crew members before the first tile is laid. That choice shapes the whole game.

Every turn, four decisions

• Explore — place a tile and open a new stretch of the Celestial Vault. Where you open it matters as much as what it holds.
  
• Harvest — collect Piper Stellis and Vanilla Caelum from the trading posts your ships occupy.
  
• Manoeuvre — move your galleon and frigates, spend crew cards, ride the Stellar Winds.
  
• Build — buy frigates, raise fortresses, and pay the spices that turn a planet into yours.

Nothing is free

Your spice holds never exceed five. Firing on an enemy ship costs a Gunner. Your captain's ability only triggers if a Chief mate is there to relay the order — and if your galleon falls, your captain goes down with it.

Lose every planet you hold and the game ends there.

Hand-drawn celestial charts

Engraved constellations, gilded compass roses and inked portraits: Efemeris is played on an old star atlas that slowly fills with light.