Sidereal Confluence: Proliferation is an expansion for Sidereal Confluence.
Designed for use with the base game, it is also fully compatible with the Bifurcation expansion.
The expansion introduces 42 advanced colonies, which are used during rounds 2 through 5, making colony acquisition a valuable and attractive option in every round of the game.
It also adds new cards and rules for real-time bidding, further increasing the intensity of trading, negotiation, and player interaction.
