Ingrid keeps a market stall at the trading post, selling warm spiced honey brew to weary travelers. Buy your supplies, set a fair price, and read the weather — then grow your hoard of silver across the trading season.
🏞 Calm Fjord
Gentle start · 12 days Forgiving crowds · 60 silver
⛵ Open Sea
A fair challenge · 14 days Shifting demand · 50 silver
⚡ Stormy North
For seasoned traders · 16 days Fickle crowds · 45 silver
Each market day you decide three things: how much honey & spice goes in each cup (the recipe), how many cups to brew and how much firewood to buy, and the price per cup. Then the weather hits and customers come. Sell more than you brewed? You sold out. Brewed too many? The leftover brew is dumped — and you still paid for it.
⚒ A Ninth Night Academy game · teaches money, percentages & supply and demand
All the silver customers hand you. Cups sold × price.
Cost
The silver you spend — honey, spice, horns, firewood, and stall rent.
Profit
What's left over: revenue − cost. If costs are bigger than revenue, profit is negative — a loss.
Fixed cost
A cost you pay no matter what, like the stall rent. Even on a slow day, the rent is due.
Profit margin
Profit shown as a percentage of revenue. Earn 100 silver and keep 40 as profit → a 40% margin. It tells you how much of each coin you actually keep.
Supply
How much there is to sell. You control supply by how many cups you brew.
Demand
How much customers want to buy. Cold weather raises demand for a hot drink; a high price lowers it.
Supply & demand
When lots of folk want your brew (high demand) and there's little about (low supply), you can charge more. The price finds the point where what you supply meets what people demand.