Economy & Trading

Currencies at a Glance

Kamigotchi runs on three currencies, each with a different role in the economy.

Musuis the everyday currency. Your Kami harvests it from nodes, and you spend it on food, crafting materials, trade fees, and most NPC shop items. Think of it as gold in a traditional RPG — easy to earn, easy to spend, and always in demand.

Onyx Shards are the premium currency. They exist both as an in-game item and as a blockchain token, bridgeable through the Token Portal. Onyx buys premium items and Reroll Tokens (used to reroll Kami traits at the auction).

Obols are a special-purpose currency tied to specific quest rewards and game systems.

NPC Shops

Two NPC merchants sell items in Kamigotchi: Mina (in town) and the Vending Machine (in the Cave). Both carry a similar selection of food and consumables, but their pricing behaves differently.

Most items use dynamic pricing— a system where the price drops over time but jumps up whenever someone buys. Imagine a clock ticking the price down toward a target, but every purchase winds the clock back up. If players are buying faster than expected, prices rise above the target. If nobody is buying, prices fall below it. This creates a natural supply-and-demand equilibrium without any manual intervention.

A few items — like the Spice Grinder (2,500 Musu) and Portable Burner (4,000 Musu) — have simple fixed prices that never change.

You must be in the same room as the NPC to buy or sell. Some listings also have requirements (like owning a certain item or reaching a certain level) before you can purchase.

Selling Back to NPCs

Some NPC listings let you sell items back. The sell price is always a fraction of the current buy price— typically around 50%. So if the dynamic buy price is sitting at 200 Musu, you'd get roughly 100 Musu for selling it back. The sell price rises and falls in lockstep with the buy price.

Player-to-Player Trading

You can trade items directly with other players through an orderbook. Trading follows a three-step handshake:

1. Create— you post what you want to buy and what you're offering. One side must always be Musu (no pure barter). Your offered items go into escrow immediately, so they leave your inventory.
2. Fill— another player accepts your offer and sends the items you wanted. They receive your escrowed items right away (minus any tax on Musu).
3. Confirm— you pick up the items they sent, completing the trade.

You can optionally target a specific player when creating a trade — useful for pre-arranged deals. You can also cancel a pending trade to get your escrowed items back, though fees are not refunded.

Trading Costs

Every trade involves three kinds of fees, all paid in Musu:

Item Transfers

For simple gifting, you can directly transfer items to another player's account for 15 Musu per item typetransferred. The fee is per distinct item type, not per unit — sending 500 Pine Pollen costs the same 15 Musu as sending 1. Sending three different items in one transfer costs 45 Musu. Some items are marked non-tradable and cannot be transferred at all.

Crafting

Crafting converts input materials into output items using predefined recipes. Each recipe has a stamina cost and grants account XP. You can craft in batches — everything scales linearly (inputs, outputs, stamina, and XP all multiply by the batch amount).

Some recipes require specific toolsin your inventory — the tool is not consumed, you just need to own it. Others may require a minimum account level or being in a particular room.

Auctions (Global Sales)

Auctions are system-level item sales that are not tied to any NPC or room — they are accessible globally. Like NPC shops, auctions use dynamic pricing that adjusts based on demand, but each auction has a limited total supply.

There are currently two active auctions:

Token Portal

The Token Portal bridges between blockchain tokens and in-game items. You can deposit tokens (like Onyx) to get in-game items, or withdraw in-game items back to tokens on the blockchain.

• Depositsare instant — tokens convert to in-game items immediately, minus a small import tax.
• Withdrawals have a mandatory 24-hour waiting period before you can claim your tokens, plus an export tax.
• Both directions charge a tax of 1 unit flat + 1% of the amount.

Kami Marketplace

The Kami Marketplace is where players buy and sell Kami NFTs for ETH. It works like a simple orderbook with three order types:

• Listings— sell a specific Kami at a fixed ETH price. Your Kami stays in your wallet (no escrow) but is locked from other actions while listed.
• Specific offers— offer WETH for a particular Kami you want. The WETH stays in your wallet until the seller accepts.
• Collection offers — offer WETH per Kami for any Kami, up to a quantity you choose. Sellers can accept one at a time.

A marketplace fee is deducted from every sale, and the Kami enters a 1-hour cooldown after purchase before it can harvest, equip items, or take other actions.

Newbie Vendor

Brand-new accounts (created within the last 24 hours) can purchase one Kami from the Newbie Vendor at a fair market price. The vendor price tracks the time-weighted average of recent marketplace sales, with a floor of 0.005 ETH so it never goes too low. Three Kamis are available at a time, and the selection rotates every 48 hours. After buying, the Kami is soulbound for 3 days(cannot be listed or traded) — this prevents reselling for a quick flip.

Where Does Musu Go?

The economy is designed with natural checks on inflation. Here is how Musu enters and leaves the game: