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Blue Marble
Roll dice to travel world cities, buying land and collecting rent — a Korean board game icon since 1982. Spaces unique to Blue Marble such as Desert Island, Space Travel, and the Golden Key give it a flavor distinct from Western Monopoly.
Rules
Roll dice to travel the world's cities, buying land and building up tolls, in Korea's original board game since 1982. Desert Island, Space Travel, Golden Key, and the Social Welfare Fund spaces give it a flavor distinct from Western Monopoly.
Components
| Component | Count | Notes |
|---|---|---|
| Game board | 1 | A loop of city, Golden Key, Desert Island, Space Travel, and Social Welfare Fund spaces around a Start space |
| Dice | 2 | Move the total shown |
| Pawns | Up to 4 | One per player (2–4 players) |
| Deed cards | Unconfirmed | Proof of owning a city; the basis for rent |
| Banknotes | Unconfirmed (several denominations) | Exchanged between the bank and players |
| Building pieces | Unconfirmed | Three stages: house, building, hotel |
| Golden Key cards | 30 (numbered 1–30) | Draw one when you land on it and act on it immediately (wiki cross-check) |
Scope of verification
No confirmed official source gives exact counts for deed cards, banknotes, or building pieces, so they are left unconfirmed (⚠️ Unverified). Only the 30 Golden Key cards were confirmed via a wiki cross-check. Use the component list printed in your box's rulebook.
Setup
- 1Unfold the board and have each player choose a pawn and place it on the Start space.
- 2Choose a banker to manage the banknotes and building pieces (house, building, hotel).
- 3Distribute starting money. Rulebooks from recent editions (mid-2010s onward) state that the amount for 4 players is the baseline, 3 players receive the same amount each, and 2 players receive double that amount each (wiki cross-check).
- 4Shuffle the 30 Golden Key cards and stack them face down on their space.
⚠️ Unverified: the exact starting amount and banknote denominations may differ between editions and are not stated. Follow the rulebook in your box.
Taking a turn
- 1Roll both dice and move your pawn along the board by the total shown.
- 2If both dice show the same number (doubles), finish resolving that space, then roll again.
- 3Follow the rule of the space you land on (city, Golden Key, Desert Island, Space Travel, Social Welfare Fund, and so on).
- 4If you pass or land on Start, collect your salary from the bank.
Handling consecutive doubles is unconfirmed
Many Monopoly-like games send a player to jail after three doubles in a row. Whether Blue Marble has an equivalent rule was not confirmed in any official source (⚠️ Unverified). Check your rulebook.
Buying cities and buildings
| Space status | When you land there |
|---|---|
| Empty city | You may buy it for the listed price and take the deed. |
| Your city (no building) | You may build a house to raise its rent. |
| Your city (house present) | You may upgrade to a building, then to a hotel (you cannot skip a stage). |
| Another player's city | Pay the rent matching its current development stage to its owner. |
You cannot skip a stage
Buildings only progress house → building → hotel. You cannot build a building or hotel directly on an empty city.
Special spaces — Golden Key, Desert Island, Space Travel, Social Welfare Fund
| Space | What happens |
|---|---|
| Golden Key | Draw one card from the dedicated deck and act on it immediately. Examples range from reward cards such as 'collect a pension from the bank' to penalty cards (wiki cross-check). |
| Desert Island | Landing here traps you. It is widely described as lasting until you roll doubles, but whether there is a turn limit or an escape fee is ⚠️ unverified. |
| Space Travel | Pay a fee and travel around a separate track before returning to the board. The exact fee and return point are ⚠️ unverified. |
| Social Welfare Fund | Described as a space that collects a portion of fines and rents paid by other players, which whoever lands on it then collects. The exact accumulation rate is ⚠️ unverified. |
Most figures in this section are unverified
The existence and general character of these spaces is consistent across several secondary sources, but exact amounts, odds, and the full card list were not confirmed against an official rulebook and are omitted. Play according to your box's rulebook.
Bankruptcy and winning
- 1A player who cannot pay a rent or bill goes bankrupt and leaves the game.
- 2The last player who has not gone bankrupt wins.
- 3A timed variant that ends the game after a set period is also widely used. In that case, the player with the highest combined cash and property value wins.
Asset calculator
Ending on a timer means adding cash to property value, which is tedious by hand. Use this site's Blue Marble score helper (if listed under Tools) to total cash plus assets quickly.
Strategy
- A cluster of mid-priced cities landed on often early in a game tends to produce steadier rent income than one or two very expensive cities.
- Spending down to your last coin to build can leave you unable to cover a single Golden Key penalty or an opponent's rent. Keeping a cash reserve is safer.
- A turn stuck on Desert Island spends no money, so use it to plan your next move based on how opponents are developing.
Editions and sibling products
Ssiat has revised Blue Marble several times in the order older editions → 2007 edition → 2016 edition → current edition. Dice quality, banknote size, and rulebook detail have differed between editions, and at least one city name has changed — Canada's featured city moved from Montreal to Ottawa in the 2016 edition (wiki cross-check). Mentions exist of rent figures being adjusted between editions, but specific amount comparisons were not confirmed (⚠️ Unverified).
Do not confuse this with sibling products
Ssiat also sells Blue Marble MINI World Tour, Blue Marble Card Game, Blue Marble Expedition, Blue Marble Korean Independence, and the Blue Marble Creative Kit under the same brand. Ages, player counts, and win conditions differ between them, so their rules cannot be mixed. This guide covers the adult base game (catalog BGG id 10506).
Frequently asked questions
Q. How do you escape Desert Island?
It is widely described as lasting until you roll doubles. Whether some editions add a turn limit or an escape fee was not confirmed in any official source (⚠️ Unverified) — check your rulebook.
Q. Can I build a hotel directly on an empty city?
No. Buildings only progress house → building → hotel. You cannot skip a stage.
Q. Is Blue Marble the same game as Monopoly?
The broad idea of buying land and collecting rent is similar, but Blue Marble is a distinct 1982 Korean game defined by its own spaces: Desert Island, Space Travel, Golden Key, and the Social Welfare Fund.
Q. How many Golden Key cards are there?
30, numbered 1 through 30 (wiki cross-check). Check your rulebook for the full card list.
Q. Is this the same guide as Blue Marble Expedition?
No. Blue Marble Expedition is a separate product for ages 5 and up with a different win condition based on collecting gems. This guide covers the adult base game.
Q. Does starting money differ with 2 players?
Recent rulebooks are reported to give 2 players double the 4-player per-player amount, and 3 players the same amount as 4 players (wiki cross-check). Check your rulebook for the exact figures.
History and the origin of the name
Blue Marble was designed by Lee Sang-bae and released by Ssiat in 1982. Its name comes from 'Blue Marble,' the photo of Earth taken by Apollo 17, filtered through 1980s Korean conventions for transliterating loanwords (wiki cross-check).
Since release it has gone through several revisions — older editions → a 2007 edition → a 2016 edition → the current edition — each changing dice quality, banknote size, or rulebook detail. The 2016 edition also adjusted city content on the board, moving Canada's featured city from Montreal to Ottawa (wiki cross-check). As of a search on 2026-10-10, English Wikipedia has no dedicated article covering this game.
Sources
Ssiat official site — board game product list (including Blue Marble Classic)Ssiat official A/S notice — where the pouch ships inside Blue Marble ClassicWiki cross-check — Namuwiki: Blue Marble (Korean)Wiki cross-check — English Wikipedia search: no dedicated article confirmed (2026-10-10)Rule summaries are reference content written by us, not quotations from the official rulebook. Always check the official rulebook for exact rules. Diagrams are original schematics, not rulebook illustrations.
Spotted a mistake? Tell us in the comments below →
Last updated 2026-10-10
💡 Master tip
A cluster of mid-priced cities landed on often early in a game tends to produce steadier cash flow than high-priced lines. An expansion that spends your cash down to nothing can collapse from a single Golden Key card — leave room to absorb two rent payments.
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