← Open the full game

Today’s shared-map challenge

Three turns to shape California.

Everyone who starts today receives the same generated map. Survey your position, choose a research direction, and advance through three turns—then send the same starting challenge to someone else.

Today’s UTC challenge

Complete three turns on the shared starting map

  1. Inspect nearby terrain and resources.
  2. Choose an available technology to research.
  3. Complete three turns and compare the direction you took.
Start today’s challenge

One honest comparison boundary

The dated seed makes the starting map consistent. It does not force identical player choices or guarantee that every later computer-controlled action will match.

Independent fan project

This is an independent, fan-made California strategy-game experiment. It is not affiliated with, endorsed by, or sponsored by Firaxis Games, 2K, Take-Two Interactive, or the owners of the Civilization trademarks.