O M C M G I I I I I I I I Q L W W B T U C B I G P I I V L O S T G
Ludexv2026.11.01-65114139Galileo GalileiOfficial rulebook ↗

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Cards & Components

Every Galileo Galilei component face: Discovery cards, the twelve Action tile faces, Subject tiles and objectives, Scale tiles, tokens, Tycho's solo tiles and the Luna pieces.

Every distinct face, with what it does and where the rules explain it. Pictures are from the rulebooks. Faces the rulebooks do not picture are marked check against the physical component — trust your copy over this page.

Boards

Character boards

Four astronomers in the base game, eight with Luna. The basic side is the same for all; the advanced side has a special ability and personal pieces (Advanced game).

Rulings that apply to every row below: What is the empty rectangle on the basic side of the Character Boards for?.

PictureBoard and rules
Galileo's Character BoardGalileo Galilei — advanced ability. The blank rectangle on the basic board holds Quadrants. FAQ
Kepler's Character BoardJohannes Kepler — special Action tile. The blank rectangle on the basic board holds Quadrants.
Copernicus' Character BoardNicolaus Copernicus — library tiles. The blank rectangle on the basic board holds Quadrants.
Bruno's Character BoardGiordano Bruno — cellar tile. The blank rectangle on the basic board holds Quadrants.
Newton's Character Board[Moon] Isaac Newton — Luna characters.
Hevelius' Character Board[Moon] Elizabeth Hevelius — Luna characters.
Cunitz's Character Board[Moon] Maria Cunitz — Luna characters. The square token stops when it reaches the end of its track and a Note pays only when the token moves onto it.
Sophia's Character Board[Moon] Sophia Brahe — Luna characters. Her Sun rewards apply only when she actually takes an Observe action. FAQ
Edmond Halley (promo)Edmond Halley. His ordinary personal comet pages can hold other comets; Halley’s special comet does not count as one removed from the player board. FAQ FAQ
PictureBoard and rules
The game boardShared board: the Discovery display, action spaces and Book of Comets; game board. Use empty pages before the Appendix; with 3–4 players, also use the purple pages. FAQ FAQ FAQ
Player boardThe telescope points at a fixed action and the queued Action tile supplies the moving action; you may skip either. The dice area allows at most 3 dice of one colour and 4 total. Player board. FAQ FAQ
Tycho's boardSolo: Tycho has no four-die cap; he can hold any number. Tycho. FAQ

Cards

Discovery cards

33 cards in three tiers (the back shows the tier: I, II or III). The deck you build depends on the player count (Setup).

Discovery card backs: Tier III, II and I

Each card shows, from top to bottom:

Pay a Major Object with dice of only its two shown colours, at least one of each. A constellation spot is paid separately: two different spots may be covered in one Observe, even from different cards, but never a spot already covered by a token. Completing all spots does not claim that card’s Major Object; a face-down reward card counts as a library card only. You may keep any number of cards in your library, and may still observe when you cannot use one of the rewards. Observing. Once you begin an action, take each reward as far as you can; Inquisitor’s Farewell is the exception and may be declined. FAQ FAQ FAQ FAQ FAQ FAQ FAQ FAQ

Pictured cards

PicturePrinted values and use
MercuriusMajor Object: Tier I, orange 6 for 5 VP and an Inquisitor. Lyra: red 3 for 4 VP and an Inquisitor, or blue 3 for 2 VP. Library: die, 2 VP, Inquisitor, red +1.
VenusMajor Object: Tier I, green 6 for 5 VP and an Inquisitor. Ursa Minor: yellow 3 for 4 VP and an Inquisitor, or red 5 for 3 VP and a Quadrant. Library: 2 VP, Inquisitor, die, blue +1.
MarsMajor Object: Tier I, orange 7 for 5 VP. Pisces: red 4 for 5 VP and an Inquisitor. Library: blank, Persuade, Quadrant, die.
SaturnusMajor Object: Tier I, green 7 for 5 VP. Capricornus: yellow 3 for 4 VP and an Inquisitor. Library: yellow +1, 2 VP, Inquisitor, die.
GeminidesMajor Object: Tier I, purple 6 for 5 VP and an Inquisitor. The Twins (♊): blue 4 for 5 VP and an Inquisitor, or yellow 5 for 4 VP. Library: Inquisitor, die, 2 VP, yellow +1.
LeonidesMajor Object: Tier I, purple 7 for 5 VP. Leo: yellow 5 for 6 VP and an Inquisitor. Library: Inquisitor, red +1, die, 2 VP.
Orbis LacteusMajor Object: Tier II, purple 9 for 9 VP. Cetus: yellow 4 for 3 VP, or red 5 for 9 VP and 2 Inquisitors. Library: Lecture, 2 VP, blank, Inquisitor.

Values read from the rulebook pictures. The other 26 cards (including Luna, orange 8 → 7 VP + Inquisitor, from the rulebook’s example) are not shown in full: check against the physical component. Cards taken face down for a constellation reward go into your library light side up and count only for their library row. In solo, Tycho never gains an Inquisitor from a card. When the deck runs out, the game ends even if its last card was a constellation reward; if an empty-deck reward gives a card in the final round, take a random unused Tier III card. FAQ FAQ FAQ

Tiles

Action tiles

Six tiles per player, the same set for everyone: a light basic side and a gold upgraded side — twelve faces (The Action tiles). Each face offers two options; choose one.

PictureChoose one option when this tile’s moving action is taken
Red +1 or Writeincrease all red dice by 1 or Write (complete)
Red +2 or Lecture and Writeincrease all red dice by 2 or Lecture + Write (complete)
Red +1 or gain a dieincrease all red dice by 1 or gain a die
Red +2 or Quadrant, die, 1 VPincrease all red dice by 2 or Quadrant token + gain a die + 1 victory points
Yellow +1 or 2 Quadrantsincrease all yellow dice by 1 or 2 Quadrant token
Yellow +2 or 3 Quadrants, 1 VPincrease all yellow dice by 2 or 3 Quadrant token + 1 victory points
Yellow +1 or Writeincrease all yellow dice by 1 or Write (complete)
Yellow +2 or Write, 1 VP, Quadrantincrease all yellow dice by 2 or Write (complete) + 1 victory points + Quadrant token
Blue +1 or one die +2increase all blue dice by 1 or increase one die by 2
Blue +2 or Quadrant and one die +3increase all blue dice by 2 or Quadrant token + increase one die by 3. You may raise the die by 1 or 2 instead. FAQ
Blue +1 or Quadrant and Persuadeincrease all blue dice by 1 or Quadrant token + Persuade
Blue +2 or Quadrant and 2 Persuadesincrease all blue dice by 2 or Quadrant token + 2 Persuade

[Moon] Isaac Newton and Maria Cunitz use their own tiles (Luna characters).

The action space offers a fixed action and a tile’s moving action separately: you may decline either; once you take an action, resolve its rewards as far as possible. Upgrading flips a tile in place and does not move a tile in Cleanup. Action spaces. FAQ.

Character-specific tiles

PictureComponent and play effect
Kepler's special Action tileKepler picks one of the tile’s two options; taking its moving action also lets him choose one of the two swaps. It cannot swap itself, and the +2 option must affect two different dice. FAQ FAQ FAQ
Copernicus' library tilesCopernicus lays a tile as a free action, covering library rewards; tiles may be sideways, but not upside down. FAQ
Bruno's cellar tileBruno’s personal cellar has five spaces; see the printed values and scoring consequences on his Character page.
Newton's mirror tilesEach mirror multiplies its chosen basic or upgraded effect by the position it occupies; at the top it pays four times.
Sophia's Sun and Venus tokensVenus advances across the Sun as Sophia’s telescope passes Upgrade. She takes visible Sun rewards only when she carries out an Observe action. FAQ

Subject tiles

Six double-sided tiles. Four go arch side up above the Scale tiles as the end-game subjects; two go niche side up on the ? spaces as objectives (Objectives).

Subject tile, arch side Subject tile, niche side

PictureScore or objective
Arch: Major ObjectArch — Major Objects: score once per Major Object in your library, multiplied by your University token’s row.
Niche: four Major ObjectsNiche — Major Objects: observe 4.
Arch: bookArch — Books: count spaces moved by your leftmost Book token, then multiply by your University row.
Niche: booksNiche — Books: all four Book tokens must reach at least the third library space; the starting area does not count. FAQ
Arch: InquisitorArch — Inquisitors: count those remaining in your cellar at game end; multiply by your University row.
Niche: six InquisitorsNiche — Inquisitors: have 6 Inquisitors in your cellar at once.
Arch: upgradeArch — Upgrades: count upgraded Action tiles and multiply by your University row.
Niche: five upgradesNiche — Upgrades: upgrade 5 Action tiles.
Arch: cometArch — Comets: count your Comet tokens off the player board and multiply by your University row.
Niche: five cometsNiche — Comets: have 5 Comet tokens off your player board.
Arch: constellationArch — Constellations: count your Constellation tokens off the player board and multiply by your University row.
Niche: six constellationsNiche — Constellations: have 6 Constellation tokens off your player board.

When you complete an objective, score its points and you may also take Inquisitor’s Farewell; that Farewell is optional. Objectives. FAQ

Printed objectives

Two objectives are printed on the board and always in play (Objectives):

ObjectiveCondition
Printed objective A2 Major Objects, 2 constellations and 2 comets
Printed objective BTwo University tokens at the top of their Scale tiles

Scale tiles

Six double-sided tiles; four are used. The number in each row is your end-game multiplier, the icon beside it the reward for climbing there (Subjects and Scale tiles). Every row number is a multiplier even when the × is missing. The rulebook does not fix which side faces up; groups may choose randomly. FAQ FAQ

Scale tileRows, top to bottom
Scale tile 13× die · 2× Quadrant · 1× Inquisitor · bottom: one die +1 FAQ FAQ
Scale tile 24× Farewell · 3× Quadrant · 2× two Inquisitors · 1× nothing FAQ FAQ
Scale tile 33× nothing · 2× Persuade · 1× Write 1 · bottom: Quadrant FAQ FAQ
Scale tile 53× Quadrant · 2× Quadrant · 1× one die +1 · bottom: Write 1 FAQ FAQ

The other eight faces are not pictured: check against the physical component.

Luna tiles

Each Moon tile gives the reward shown here after you pay its cost with all three die colours; a Scoring tile then pays its bonus to the observer and its basic points to everyone else. Luna.

PictureMoon reward
Moon tile II: Take a card, gain a die and score 3 VP.
Moon tile IIII: Write 4 and score 5 VP.
Moon tile IIIIII: Take a card, gain 2 Quadrants and score 3 VP.
Moon tile IVIV: Gain 2 Quadrants and score 6 VP.
Moon tile VV: Take a card, Persuade twice and score 2 VP.
Moon tile VIVI: Gain a die of any colour and score 6 VP.
Moon tile VIIVII: Take a card, Write 3 and score 3 VP.
Moon tile VIIIVIII: Lecture and score 4 VP.
Moon tile IXIX: Take a card, gain a Quadrant and score 4 VP.

Luna Scoring tiles

For every Scoring tile, the other players receive its basic points while its bonus is reserved for the observer. Tycho still observes even when the bonus cannot apply to him. FAQ

PictureScoring tile
Upgrade scoring tileUpgrades: observer scores 2 per upgraded Action tile; others score 1 each.
Comet scoring tileComets: observer scores 2 per Comet token off their board; others score 1 each.
Book scoring tileBooks: observer scores 4 per space for their leftmost Book; others score 2 per space.
Lecture scoring tileLectures: observer scores 1 per climbed University space; others score 1 per 2 spaces, rounded down.
Constellation scoring tileConstellations: observer scores 2 per Constellation token off their board; others score 1 each.
Inquisitor steps scoring tileInquisitor steps: observer scores 1 per space their cellar Inquisitors moved; others score 1 per 2 spaces, rounded down.
Inquisitor scoring tileInquisitors: observer scores 2 per cellar Inquisitor, Grand ones included; others score 1 each. FAQ
Major Object scoring tileMajor Objects: observer scores 2 per Major Object in their library; others score 1 each.
Achievement scoring tileAchievements: observer scores 4 per Achievement token on the board; others score 2 each.

Solo: Tycho Brahe

Tycho’s five Action tiles (1A–5A) are read top row first; he takes the first row whose condition he meets (Tycho’s Action tiles).

PictureTycho action
Tycho's Action tile 1A1A: Two unpersuaded Inquisitors → 3 Persuades and a die; two dice → Major Object, move two comets and gain an Inquisitor. Bottom row is partly hidden in the rulebook: check against the physical component. FAQ
Tycho's Action tile 2A2A: Two unpersuaded → 4 Persuades; or two dice → Major Object, move one comet and Persuade. FAQ
Tycho's Action tile 3A3A: One unpersuaded → 2 Persuades and a die; or two dice and two open spots → 2 constellations, move one comet and Persuade. Bottom row: 2 dice, Persuade, Lecture. FAQ FAQ FAQ FAQ
Tycho's Action tile 4A4A: One unpersuaded → 2 Persuades and a die; or one die and one open spot → constellation, move a comet, take a card and Persuade. Bottom row: 2 dice, Book 1, 3 VP. FAQ FAQ FAQ
Tycho's Action tile 5A5A: If he has a comet, place one, Lecture and gain an Inquisitor; bottom row: Book 1, Lecture, 2 Persuades. If three Inquisitors are fully persuaded, remove one and score 10 VP. FAQ FAQ

His Movement tiles show how far his telescope moves; an orange stop mark makes him stop early on an upgraded tile, and the 0 tile upgrades instead (Tycho’s turn).

Tycho's Movement tiles: 0, 3, 2, 2, 1

The rulebook picture shows 0, 3, 2, 2 and 1; which of them carry the stop mark: check against the physical component. The 0 tile upgrades and ends his turn without taking an Action tile. FAQ FAQ

Tokens & pieces

Tokens and pieces

PieceWhat it is for
Dice30 dice, 10 per colour. Never rolled: they start at 1 and are raised (Observation dice). You may hold at most 3 of one colour and 4 total. FAQ
QuadrantsQuadrant token Quadrants worth 1 and 3; spend them on free actions. You may repeat a free action or take one after Cleanup, but never in the middle of resolving another action. FAQ FAQ FAQ
Comet tokens7 comets per player, side 1 and side 2 (Using comets). Each may reduce one object cost once per turn, but every comet must reduce the cost and you still spend the required dice colours. FAQ FAQ FAQ FAQ FAQ FAQ
Constellation tokens7 per player; each one taken pays the reward under its space (Observing constellations)
Book tokens4 per player, one per library row (Writing). Move one step at a time and collect only newly reached spaces; blank spaces still count. FAQ FAQ FAQ FAQ FAQ
Tycho's special Book tokenTycho’s library pays no rewards, but this marker counts for the leftmost Book subject and library objectives. FAQ
University tokens4 per player, one per Scale tile (University)
Tribunal tokens1 per player on the Reputation track (The Tribunal). After an interrogation, move by the sum of your cellar values; passing the end costs 2 VP once for that interrogation, however far beyond it you would go. FAQ FAQ
Achievement tokensMark objectives you have met (Objectives); Tycho can earn them too. FAQ
Score tokensScore track; flip past 100; your score may go below zero. FAQ
Inquisitors32 Inquisitors for the cellars (The cellar). A new one arrives at the left end without moving; multiple Persuades cause at most one interrogation, and only when an Inquisitor moves. Persuades are mandatory when possible, but do nothing if none can move. FAQ FAQ FAQ FAQ FAQ FAQ FAQ FAQ
First player telescopeFirst player token; finish the round through the player before the first player, then give everyone one final turn (End of the game). FAQ
Help cards2 Help cards with the Action tile faces

Luna components

[Moon] Short tag of the Luna expansion.

PieceWhat it is for
Moon tiles9 Moon tiles (I–IX), dark side up, each with an observation reward (Observing the Moon)
Moon Observation tiles9 Moon Observation tiles, #5 to #13: the Moon’s current cost
Luna Scoring tiles9 Scoring tiles: bonus for the observer, basic points for everyone else (Scoring tiles) FAQ
Grand Inquisitors9 Grand Inquisitor Grand Inquisitors; each counts as one Inquisitor for scoring and objectives, but its cellar value doubles during interrogation (Grand Inquisitors). FAQ FAQ
Maria Cunitz tokens[Moon] Her square token advances along the Note track, stopping at its final space; a Note pays only when she moves onto it. FAQ FAQ
Bonus BoardBonus Board, sides A and B (Bonus Board). A Grand Inquisitor leaving your cellar goes here; its move still triggers the usual interrogation. FAQ
Dividing tilesTier II and III Dividing tiles: they reveal the next Moon phase (Phases of the Moon)
Moon Achievement tileMoon objective: observe the Moon twice (Moon objective)
Comet book tileCovers the unused Book of Comets pages with 1–2 players
Luna solo Movement tilesTycho’s new Movement tiles, including 3 + die and 4 (Moon) (Solo changes)
Tycho's Luna Action tileTycho’s sixth Action tile (6A): observe the Moon. He still observes when no revealed Scoring tile offers him a bonus. FAQ

The nine Moon tile rewards and the nine Scoring tile effects are listed on the Luna page.

Icons

To be added.

Rules

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