Sidereal Confluence
- Designer TauCeti Deichmann
- Publisher WizKids (I) , Banana Games , Frosted Games , Intrafin Games , Lavka Games
- Illustration Kwanchai Moriya , Jesse Seidule , Nakarin Sukontakorn
Track your results with Playnexi
Add this game to your collection and track sessions, scores, and statistics.
Start for freeWhat to Expect
In Sidereal Confluence, each player controls one of nine unique alien races forming a trade federation. Players negotiate trades for resources, ships, colonies, and technologies to build their economies. The game features an open trading phase with simultaneous action selection and real-time negotiation, requiring strategic resource management and diplomacy.
Who Is This Game For?
Sidereal Confluence targets experienced gamers who enjoy complex economic and negotiation games. With a playtime of around 180 minutes, it demands patience and strategic planning. Beginners may find the simultaneous mechanics and heavy interaction challenging.
How It Works
Each player selects a unique alien race with its own card deck representing technologies and economic capabilities. During an open trading phase, players negotiate resources, ships, colonies, and tech usage. The game incorporates mechanics like Sealed-Bid Auction, Hidden Victory Points, Income, Negotiation, Real-Time, and Simultaneous Action Selection. After trading, all players simultaneously execute their economies to generate resources and progress.
What Makes It Special
Designed by TauCeti Deichmann, Sidereal Confluence won the 2017 Cardboard Republic Daredevil Laurel. It stands out with its blend of real-time negotiation and asymmetrical alien factions. Part of the Sidereal Confluence family, it is unique among complex economic games focusing on trade and diplomacy.
Awards
2017
- 2017 Cardboard Republic Daredevil Laurel — Winner
- 2017 Meeples Choice Award — Nominated
Pro
- Diverse asymmetrical alien races with unique abilities
- Combination of negotiation, real-time, and simultaneous action
- High player interaction and dynamic economic system
- Winner of the 2017 Cardboard Republic Daredevil Laurel
Contra
- Long playtime of around 180 minutes
- Requires strategic thinking and patience
- Not suitable for beginners or families with young children
Setting & Atmosphäre
The game is set in the Elysian Quadrant of a sci-fi universe where nine alien cultures form a trade federation, researching technologies and colonizing planets to expand their civilizations.
Tipp für Einsteiger
Take time to understand the mechanics and focus on effective negotiation and economy building.
Häufige Fragen
Can I play this solo?
Sidereal Confluence is designed for 4 to 9 players and does not include a solo mode.
How long does a game really take?
The playtime is about 180 minutes, including negotiation and economic execution phases.
What prior experience do I need?
The game targets experienced players interested in complex economic and negotiation games.
How does this compare to similar games?
Sidereal Confluence uniquely combines real-time negotiation with asymmetrical alien races and simultaneous action selection.
Is this suitable for families?
Due to complexity and age restriction of 14+, it is better suited for experienced players than families with young children.
What mechanic makes it special?
The blend of Negotiation, Real-Time, and Simultaneous Action Selection defines its gameplay.
Fazit
Sidereal Confluence is recommended for players who appreciate deep negotiation and economic simulation with many participants. Its long duration and complexity require patience and strategic thinking.

















