Description
C&N TRADER
Custom traders with a living, supply-and-demand economy for Vintage Story
C&N Trader adds configurable trader NPCs with dynamic prices: buying raises a price, selling lowers it, and prices slowly return to their base. Build traders in an in-game admin panel (no JSON editing), save them as presets, and spawn them with a command.
Living Economy
Every buy/sell entry has its own pricing strategy that decides how the price reacts to trades and to the passage of time. Prices are always clamped between a configurable floor and ceiling (min × base … max × base).
= None
Fixed price. Trades and time never move it - a classic static shop.
L Linear
Each traded batch moves the price by a fixed fraction of the base price, and the price drifts straight back toward base at a set rate per day.
E Elastic
Multiplicative: each batch scales the current price by (1 ± k), so swings are proportional to the price and recovery toward base is a smooth exponential.
S Stock
The price follows the remaining stock. Full stock sits at base; scarcity drives a sell price up toward the ceiling, while a glut drives a buyback price down toward the floor.
T Step
A staircase: every N units traded, the price jumps by a fixed percentage in that direction, then steps back toward base over time.
Settings cascade: each item inherits from the preset default, which inherits from the global config - you only override what you need.
Price trend at a glance: in the trade window each offer whose price has drifted from its base shows a colored arrow and percentage (<span style="color: #7fe07f;">▲ green = a good deal for you</span>, <span style="color: #e88a6f;">▼ red = a bad one</span>), so players can spot bargains and gluts without doing the maths.
Restock over time: stock isn’t just reshuffled - each entry slowly refills toward its ceiling at a per-item rate (restock quantity every restock hourDelay hours), so a sold-out item recovers gradually instead of snapping back full.
Shared quotas (goods groups): tag several entries with the same goods group and one goods group max and they draw from a single shared stock pool - handy for “this trader only has 20 tools total, in any mix”.
Presets & Personalities
- Reusable presets: a whole trader — display name, starting money, buy list, sell list and all supply/demand defaults - saved to a file and spawnable by name.
- Buy & sell lists: per-item price (average + variance), stock (average + variance), stack size, restock timing and per-item pricing strategy.
- Personalities: pick a haggling personality per trader, or let it roll at random on spawn.
- Periodic refresh: traders reshuffle their stock and money on a configurable interval.
Currency
A configurable currency table maps items to monetary value, so traders price and pay out in the money items you define — and it resyncs to every connected player when the config is reloaded.
- Works standalone: out of the box the currency is a single value-1 coin (
game:gear-rusty), so the mod needs no economy dependency. Swap in your own coin set (e.g. copper/silver/gold tiers) in the config. - Named currency profiles: define several coin sets and let each trader trade in a different one - pick a profile from a dropdown in the preset editor (or set
currencyProfilein a tradelist). Traders with no profile use the global table, so old setups are unaffected. - Attribute-aware coins: the same item can count as different values depending on its stack attributes, so one “coin” item can carry several denominations.
- Real change: overpayments are paid back in the largest denominations that fit, and the trader stores its takings in the profile’s base coin.
Setting up currency
Ratings & reviews
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