AI-friendly board game rules summaries — use with Claude, ChatGPT, or any AI assistant
Power Grid is an economic strategy game where players represent power companies competing to supply electricity to the most cities. Players auction power plants, buy resources to fuel them, and expand their network of cities. The game progresses through 3 steps with increasingly aggressive competition. The player who powers the most cities in the final round wins.
Each round has 5 phases:
Player with most cities is first. Ties broken by highest-numbered power plant.
In player order, each player may auction one power plant from the actual market. Bidding proceeds clockwise; minimum bid is the plant’s number. Max 3 plants per player. First round: each player must buy a plant.
In reverse player order, buy resources from the market. Place resources on matching power plants (storage limited to 2x capacity).
In reverse player order, pay connection costs to add cities to your network. Step 1: max 1 house per city. Step 2: max 2 houses per city. Step 3: max 3 houses per city. Connection cost = city cost + cheapest connection to your existing network.
In player order, power cities using fueled plants. Earn income based on cities powered. Refill resource market based on step and player count. Discard lowest plant if no one bought this round.
The game ends during Phase 5 when a player connects to a target number of cities (varies by player count). The player who powers the most cities in the final round wins (not necessarily the player with the most cities connected). Tiebreaker: most Elektro remaining.
| Players | Cities to trigger end |
|---|---|
| 2 | 21 |
| 3 | 17 |
| 4 | 17 |
| 5 | 15 |
| 6 | 14 |
| Phase | Order | Action |
|---|---|---|
| 1. Player Order | - | Most cities first; ties by highest plant number |
| 2. Auction | Player order | Bid on 1 power plant per round |
| 3. Buy Resources | Reverse order | Buy from market at printed prices |
| 4. Build | Reverse order | Connect cities; pay city + connection costs |
| 5. Bureaucracy | Player order | Power cities, earn income, refill market |
Win: Power the most cities in the final round.