The Black Market is a weekend-only shop in Fisch run by a shady NPC who sells rare rods, baits, boats, cosmetics, and titles that never show up in the normal merchant stores. It does not appear on weekdays, and the stock only changes after a new version update, so what you see is the same for every player until the next patch lands.

When and where the Black Market spawns
The Black Market is a globalized weekend event. The Shopkeeper takes his place behind the counter in the middle of the Shady Bazaar during real-world weekends, roughly an hour after the week's version update is live. The stock is shared globally, so server-hopping won't change what's for sale.
One thing that trips people up is the schedule. If you talk to him on a weekday, he's asleep at the counter and won't sell you anything. You'll get a line about coming back on the weekend instead of the shop menu.
Purchases are tracked per player, not per server. Quantities for each item only refill after a new version update, so once you buy your allowance of something, joining a different world won't reset it.

How to access the Black Market shop
Step 1: Make sure it's a weekend and the week's update has already gone live. The Shopkeeper appears about an hour after the patch, so there's no point rushing the second a weekend begins.
Step 2: Travel to the Shady Bazaar and look for the Black Market Shopkeeper standing behind the counter near the middle of the area.
Step 3: Interact with him and choose the "Show me" option. This opens the Black Market menu with the current catalog.

Step 4: Buy what you want before you leave. You know it worked when the item lands in your inventory and your Coin balance drops by the listed price. Keep enough C$ on hand ahead of time, since the top-end items run into the billions.

All Black Market items and prices
The current catalog runs from a 20 C$ Pizza all the way up to a billion-coin title, with rods, coils, boats, baits, and cosmetics in between. The newest additions are the Boulder bait, Fluffy Unicorn cosmetic, the Trade Plaza Traveler's Rowboat, the Crimsonwrath rod, and the $$$ Title. Prices and stock amounts are below.
| Item | Price (C$) | Amount |
|---|---|---|
| Pizza | 20 | ×1 |
| Hot Chocolate | 250 | ×1 |
| Noise-Cancelling Headphones | 499 | ×1 |
| Chocolate Milk | 1,000 | ×1 |
| Skipper Seal | 1,000 | ×1 |
| Cuddly Cat | 5,000 | ×1 |
| Boulder | 10,000 | ×100 |
| Dance Potion | 10,000 | ×1 |
| Moonwalk Dance Potion | 25,000 | ×1 |
| Teddy Bear | 25,000 | ×1 |
| Lightblox Jar | 50,000 | ×1 |
| Alpaca Plushie | 65,000 | ×1 |
| Slateskin Potion | 65,000 | ×1 |
| Golden Coin | 100,000 | ×5 |
| Singularity | 100,000 | ×5 |
| Star | 100,000 | ×5 |
| Taco | 100,000 | ×5 |
| UFO | 100,000 | ×5 |
| Bunch of Balloons | 100,000 | ×1 |
| Lunar Lander | 100,000 | ×1 |
| Race the Sunset | 100,000 | ×1 |
| Regeneration Coil | 150,000 | ×1 |
| Fluffy Unicorn | 200,000 | ×1 |
| Starfall Totem | 250,000 | ×1 |
| Tryhard Worm | 252,525 | ×25 |
| Semi-Speed Coil | 300,000 | ×1 |
| Cosmic Relic | 500,000 | ×1 |
| Miniature Bomb | 700,000 | ×1 |
| Pogo Stick | 800,000 | ×1 |
| Brick | 1,000,000 | ×1 |
| Glitched Potion | 1,000,000 | ×1 |
| Gravity Coil | 1,000,000 | ×1 |
| Ro-torcycle | 1,000,000 | ×1 |
| Snowy Gravity Coil | 1,000,000 | ×1 |
| Hyperbike | 2,000,000 | ×1 |
| Velocity Coil | 2,000,000 | ×1 |
| Trade Plaza Traveler's Rowboat | 2,500,000 | ×1 |
| Nico Potion | 3,333,333 | ×1 |
| A Rock | 5,000,000 | ×1 |
| Crimsonwrath | 15,000,000 | ×1 |
| Shiny Sparkling Wrath Floppy | 15,000,000 | ×1 |
| Chair | 25,252,525 | ×1 |
| $$$ Title | 1,000,000,000 | ×1 |
| 💵 Title | 2,147,483,647 | ×1 |
| Moneybag | 2,147,483,647 | ×1 |
Titles can only be bought once, so you won't be able to stockpile duplicates of the 💵 Title or the $$$ Title. The Crimsonwrath rod is the headline new addition, with infinite lure speed and max KG, full luck, low control, and a slight resilience penalty, plus a chance to apply mutation effects on a catch.

What's worth buying
Most of the catalog splits into two camps. The cheap items like Pizza, Skipper Seal, and Cuddly Cat are flavor pieces, while the expensive end is where the exclusive gear lives. The Crimsonwrath rod, the coils, and the boats are the practical pickups, and the high-cost titles and Moneybag are pure flex for late-game players sitting on huge Coin piles.
Because stock only refills after a version update, anything you skip this weekend will reappear next time the patch refreshes it, but limited-run additions can rotate out. If you're collecting rare cosmetics or rods, it's safer to grab them while they're on the counter.

Treat the Black Market as a standing weekend habit rather than a one-time event. Check the Shady Bazaar after each weekly update lands, see what the Shopkeeper is offering, and buy the gear you actually plan to use before the weekend ends.