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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Library, Comets and University

Galileo Galilei's library and the Write action, the Book of Comets, and the university: objectives, Subject tiles and Scale tiles.

Library

Every Discovery card you collect goes into your library, at the top right of your player board. Slide each new card in sideways so that its four reward rows line up with the four rows of your library and stay visible. Cards taken face down for constellations go in the same way, light side up. There is no limit to the cards a library can hold.

Each row has a Book token, which starts on the space left of the library. The board itself prints the first space of each row (from the top: Lecture Lecture, Quadrant token Quadrant, Persuade Persuade, gain a die Gain a die); the cards add the spaces after it.

Writing

Writing moves Book tokens to the right — never back — and pays out every space they reach.

IconEffect
Write (complete) Complete writingMove one Book token to the last space of its row
Write 3 (partial) Partial writingMove Book tokens a total of that many spaces, split as you like

A complete Write: the outer book crosses five rewards

Book of Comets

In Cleanup, every comet you used for the second time this turn goes on an empty page of the Book of Comets, and you take that page’s reward. One comet per page; extra comets go in the Appendix, which takes any number and gives 1 point each.

The Book of Comets with two comets placed

Book of Comets pageReward and use
7 blue pagesRewards include Lecture, Write 3, a die, Persuade, Farewell, Quadrant or 3 victory points. In play at every player count.
4 purple pagesWrite 3, Persuade, Quadrant or 3 victory points. Use these only with 3–4 players. FAQ
AppendixEach comet here is worth 1 victory points. Any number may be placed here, but put comets on empty pages first. FAQ FAQ

[Moon] With 1–2 players the comet book tile may cover the four purple pages (Luna setup).

In the advanced game some characters also have personal comet pages on their Character Board, which you may fill instead (Advanced game).

University

The university on the game board has three parts: objectives at the top, four Scale tiles with their Subject tiles in the middle, and the Tribunal’s Reputation track below (The Tribunal).

The university set up

Objectives

Four objectives are in play: the two printed at the top and two Subject tiles laid niche side up on the ? spaces. You check them in Cleanup.

Printed objectiveCondition
Objective: two Major Objects, two constellations, two cometsObserve 2 Major Objects, observe 2 constellations and spot 2 comets
Objective: two University tokens at the topTwo of your University tokens at the top of their Scale tiles
Niche side (objective)Condition
Niche: four Major ObjectsObserve 4 Major Objects
Niche: books on the third spaceAll four Book tokens on at least the third space of the library FAQ
Niche: six Inquisitors6 Inquisitors in your cellar at the same time
Niche: five upgrades5 upgraded Action tiles
Niche: five comets5 Comet tokens off your player board
Niche: six constellations6 Constellation tokens off your player board

[Moon] Luna adds a fifth Achievement token and the Moon objective (Moon objective).

Subjects and Scale tiles

Each Scale tile is paired with a Subject tile above it, arch side up, naming what that column scores at the end. Your University tokens start on the stairs below the tiles (worth nothing). Each Lecture Lecture moves one token up one row and pays the reward printed beside that row. The number in each row is your multiplier at the end.

Arch side (subject)Counts at the end
Arch: Major ObjectEach Major Object in your library (dark reward row)
Arch: bookSpaces moved by your leftmost (least advanced) Book token
Arch: InquisitorEach Inquisitor in your cellar at the end (not those sent away) FAQ
Arch: upgradeEach upgraded Action tile
Arch: cometEach Comet token off your player board
Arch: constellationEach Constellation token off your player board

The four Scale tiles pictured in the rulebook, rows from top to bottom (multiplier: reward when you reach it):

Scale tileRows
Scale tile 13×: gain a die · 2×: Quadrant token · 1×: gain an Inquisitor · bottom (no multiplier): raise one die by 1 FAQ FAQ
Scale tile 24×: Inquisitor’s Farewell · 3×: Quadrant token · 2×: 2 gain an Inquisitor · 1×: no reward FAQ FAQ
Scale tile 33×: no reward · 2×: Persuade · 1×: Write 1 · bottom (no multiplier): Quadrant token FAQ FAQ
Scale tile 53×: Quadrant token · 2×: Quadrant token · 1×: raise one die by 1 · bottom (no multiplier): Write 1 FAQ FAQ

The other faces of the six double-sided Scale tiles are not pictured in the rulebook: check them against the physical components.

Rules

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