Recent Changes
7th March 2026
  • Trade Routes: New tool ready for testing - Show trade options for set routes
    • With no islands selected it shows the ocean-wide arbitrage (you can click on the island name to expand/collapse them)
    • With 1 island selected - it show the arbitrage for that island
    • With 2 or more islands it shows profitable trade options, in the appropriate order
    • Can filter trades by minimum profit
    • Can choose a vessel to limit size of trades
    • Would love any feedback/suggestions
  • Fleet Management: New tool ready for testing - Manage stock for a fleet
    • Uses data that can be exported from the fleet management window of a docked vessel
    • Sums available stock, calculates quantities required and prices at the current island
    • Again, would love any feedback/suggestions
  • Shipwrightery Planner
    • Bugfix: Board could show an incorrect tile if ye dragged it off of the board
25th February 2026
  • Blacksmithing Planner
    • I've added the ability to add (2) single character notes to each square
    • Just mouse over the square and press a key
    • You can switch between a left/right note with radio boxes on the side - or by pressing `TAB` or left/right arrowkeys
    • `Backspace`, `Delete` & `Spacebar` all delete the note - if the note is empty it will try delete the 'other' note on that square
    • These notes persist between pinned sequences / resets - but clear with a new screenshot
29th January 2026
28th January 2026
  • Interactive maps
    • Added portrait item counters, mouse over the ocean memorization progress bar in the top left to see them
    • Links that used to open a market viewer within the maps page now open a new tab instead, with the appropriate data shown in Commodites Market
  • Commodites Market
    • Bugfix: Reloading cached data (if last update was less than 10 minutes) will no longer get stuck on "loading..."
20th January 2026
  • Interactive maps
    • Bugfix: Holding CTRL, click & dragging over league points marks them as known once more (Looks like I broke it on the 4th)
17th January 2026
  • Commodites Market: New informative tool
    • Browse any islands dockside buy/sell offers
    • An improvement to the market views available in Interactive maps
  • Buy/sell data is now updated every 10 minutes
15th January 2026
  • Blacksmithing Planner:
    • Fixed a bug that turned the last warm piece into a rumjug even if there were still hot pieces
    • Fixed a bug that wouldn't let you backtrack to a used rumjug
    • Added a way to share/bookmark boards (including your current sequence)
    • Added a way to edit boards if yer so inclined
14th January 2026
  • Egg Designs:
    • Fixed a bug that effected the copied/saved rendered egg if the user had a scaled desktop
13th January 2026
  • Egg Designs:
    • Added copy/save buttons for the rendered egg image
    • Added a slider for the speed of egg rotation
    • Added the ability to click and drag the rotating egg to rotate manually
    • Updated links
10th January 2026
  • Interactive maps:
    • Fixed a bug with island searches that have an apostrophe in their names - related to new buysell database
    • Added route difficulty indication in the form of coloured league points
    • Difficuly scale runs from easiest (cyan) to most difficult (red)
    • Can be toggled on/off in the settings
    • Meridan is missing this data, it will be added later
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Have any feedback, problems or suggestions? Feel free to reach out:

In game:You may find me playing Mantid on the Emerald ocean
Email:ypp.mantid.org@gmail.com
Discord:discord.gg/NrfzF4EcmW

Love what I'm doing? I accept donations but please don't feel obliged: Support Mantid

Change Ocean:   Emerald   Meridian

Click on Island names and then 'Compare these islands' to only show specific islands.

Show all islands
Island
 Arch
 Size
 Exports Pop
 Set Tax
 Taxed
 Governor
 Flag
Alpha Island Diamond Large
10 15% 32.2% Demeter Vilya
Angelfish Island Coral Outpost
2 10% 28.2% Prplangel WHITESTAR
Ansel Island Onyx Outpost
0 100% 50% The Widow Queen Black Veil
Beta Island Sapphire Large
10 100% 56% Peperox Chocolate Coated Chaos
Byrne Island Diamond Large
4 10% 28.8% Mommawolf Victory Raiders
Carmine Island Garnet Medium
6 25% 33.5% Moonthefr Ocean's Echo
Chaparral Island Jet Outpost
0 0% 25% Memorial Babylon
Cleopatra's Pearls Pearl Medium
7 11% 30.1% Chaboogie Family Ties
Cnossos Island Diamond Large
14 0% 29.2% Nanaya Riding High
Cochineal Island Garnet Medium
6 25% 33.5% Garibaldi Midnight Yacht Club
Conglin Island Jade Outpost
0 100% 50% Admiral Finius Fleet of his Imperial Scaled Highness
Cormorant Island Onyx Medium
2 47% 37.6% Corsican First of Corsican Kings
Corona Reef Jade Outpost
0 100% 50% Madam Yu Jian The Jade Empire
Cranberry Island Ruby Large
13 100% 57.8% Peperox Chocolate Coated Chaos
Delta Island Coral Large
11 14% 32.3% Fourteen Babylon
Dendrite Island Jade Outpost
0 0% 25% Garibaldi Midnight Yacht Club
Diastrophe Island Garnet Outpost
1 50% 38% Pyterbrazill Lost Flag
Dragon's Nest Jade Large
15 15% 33.9% Demeter Vilya
Eclipse Island Jet Outpost
0 0% 25% Demeter Vilya
Emperor Island Emerald Medium
1 50% 38% Memorial Babylon
Endurance Island Opal Large
3 50% 38.9% Kestral Scupper
Epsilon Island Emerald Large
8 15% 31.5% Demeter Vilya
Eta Island Ruby Large
27 50% 49.7% Pyterbrazill Lost Flag
Fintan Island Onyx Large
18 33% 40.4% Finbarr WHITESTAR
Frond Island Pearl Outpost
1 50% 38% Pyterbrazill Lost Flag
Gaea Island Emerald Large
7 12% 30.4% Silverstache Otherworld
Garden Cradle Onyx Medium
3 25% 32.4% Evilchris WHITESTAR
Guava Island Emerald Large
23 20% 38.3% Olgaofkiev Vikings of Valhalla
Harmattan Island Jade Medium
2 25% 32% Garibaldi Midnight Yacht Club
Hephaestus' Forge Jet Large
11 25% 35.4% Garibaldi Midnight Yacht Club
Iris Island Sapphire Outpost
3 0% 25.9% Corsican First of Corsican Kings
Islay of Luthien Ruby Large
4 5% 27.5% Zingman Carpe Noctem
Jorvik Island Ruby Large
23 55% 49.4% Olgaofkiev Vikings of Valhalla
Jubilee Island Garnet Large
14 25% 36.5% Korthuis WHITESTAR
Kirin Island Jade Large
90 50% 78% Finbarr The Union
Labyrinth Moors Onyx Large
14 100% 58.4% Voorhees Scupper
Lagniappe Island Jet Large
2 25% 32% Cremmy Nova Scorpius
Lima Island Jade Large
10 15% 32.2% Demeter Vilya
Meke Island Coral Outpost
2 25% 32% Pyterbrazill Lost Flag
Midsummer Ruby Medium
8 100% 54.8% Admiral Finius Fleet of his Imperial Scaled Highness
Namath Island Jet Large
6 50% 40.2% Grimdaddy Scupper
Napi Peak Garnet Large
30 25% 42.5% Kestral WHITESTAR
Nu Island Opal Large
5 25% 33.1% Trailerpark Kittens
Olive Island Jade Medium
9 25% 34.6% Zadkiel Last Ride
Orca Island Opal Outpost
2 20% 30.7% Jasaoo Lost Flag
Ostreum Island Pearl Medium
0 22% 30.5% Twoeyewilly Midsummer Knights
Oyster Island Diamond Large
3 5% 27.2% Zingman Carpe Noctem
Papaya Island Diamond Large
5 15% 30.5% Diletto Black Flag Inc
Park Island Coral Large
10 50% 42% Jasaoo Lost Flag
Pranayama Island Garnet Medium
7 100% 54.2% Pyterbrazill Lost Flag
Prolix Purlieu Jade Medium
1 100% 50.6% Quap WHITESTAR
Raven's Roost Onyx Outpost
0 0% 25% Evilchris WHITESTAR
Remora Island Sapphire Outpost
1 0% 25.3% Pyterbrazill Lost Flag
Sakejima Island Jade Large
15 15% 33.9% Demeter Vilya
Spectre Island Garnet Outpost
5 100% 53% Admiral Finius Fleet of his Imperial Scaled Highness
Spring Island Emerald Large
24 25% 40.3% Yesimapirate Midnight Yacht Club
Terra Island Jade Large
83 100% 99.8% Cozi The Union
Tigerleaf Mountain Onyx Large
16 50% 44.7% Kestral Vikings of Valhalla
Tinga Island Emerald Large
4 100% 52.4% Peperox Chocolate Coated Chaos
Turtle Island Diamond Large
58 20% 50.9% Darkseid Black Flag Inc
Typhoon Island Jade Outpost
0 0% 25% Aphrodite Bakers' Union
Vernal Equinox Sapphire Medium
7 100% 54.2% Arctix First of Corsican Kings
Viridis Island Jade Outpost
2 0% 25.6% Crabbycrank Walk The Plank
Winter Solstice Diamond Large
11 15% 32.5% Sherbetlemon Falling Stars
Wrasse Island Emerald Large
2 25% 32% Tammstar Roaming the Abyss
Xi Island Jet Large
16 1% 30.1% Rome Crimson Tide
Zeta Island Pearl Large
10 25% 35% Chaboogie Family Ties
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