What Does the Great Library at Celaeno Map Add to Cthulhu Wars?
The Great Library at Celaeno Map is an alternate board built around tighter area adjacency, plus two neutral units, the Librarian and the Custodian, that hunt down factions who grab its bonus tomes and fail to defend them. It swaps the standard board's geography for a denser layout where factions collide faster, scaling up to five players.
That's the short version. The longer version is worth knowing before you add it to a growing shelf of Cthulhu Wars expansions, because this one changes how the game plays, not just how it looks.
What Makes the Celaeno Map Different From the Standard Board?
Petersen Games sums it up on the product page itself: "Even the great old ones fear the librarian and his custodian! A crazy map in which areas are always closer than they seem." That line is doing real work. Areas on the Celaeno board sit in tighter clusters than the standard Earth map, so factions that expect room to build up in isolation find themselves bumping into rivals sooner.
Four of the board's areas hold Library Tomes. During the first Doom Phase, Gates appear automatically in every Library Tome area, which means every faction gets a shot at grabbing one right out of the gate. Hold a tome and you keep whatever bonus it grants. Lose the area to a rival, or let your Gate there fall, and the tome becomes Overdue. Once that happens, the Librarian comes looking for you.
The Librarian and Custodian are neutral figures, not a playable faction. Each Doom Phase, every player earns one Silence token. Spend a token and you can activate the Custodian, activate the Librarian against an Overdue Tome, or trigger certain Library Tome effects. Activate the Custodian and it moves to any area, rolls the Agony die, and bumps that many units out to the Oubliette (the roll gets a plus-one bonus if the Custodian didn't have to move). Activate the Librarian against a faction holding an Overdue Tome and that faction has to pay the roll off somehow: losing units in the area, giving up Doom, or returning the tome to its home area. None of it is optional once the dice are rolled.
Cthulhu Wars already has a reputation among strategy gamers as one of the stronger asymmetric designs on the market, where each faction plays by genuinely different rules rather than reskinned versions of the same one.[1] The Celaeno map layers a resource-denial puzzle on top of that: grab a tome early and you're ahead, but you'd better have the board control to keep it.
Who Should Buy the Great Library at Celaeno Map?
Collectors who already know the standard board inside out. If your group has run enough sessions on the Earth map that positioning has gotten predictable, this is a fast way to reset that without buying a new faction. The tighter adjacency alone forces different opening moves, and the Librarian/Custodian system adds a layer of risk that doesn't exist anywhere else in the current lineup of Cthulhu Wars expansions.
It's also a solid pick for anyone building a complete map collection. Petersen Games has built its Cthulhu Wars line around exactly that kind of ongoing ecosystem, and a second map board is one of the more affordable ways to add real variety to game night without the cost of a full faction pack.
One honest caveat. New players still learning how gates, factions, and the base combat rules interact should probably get a handful of sessions in on the standard board first. The Overdue Tome and Silence token systems add a layer most beginners won't need to juggle on day one. Give it a session or two once the fundamentals are second nature, and the extra complexity starts paying off rather than slowing the table down.
What's in the Box?
Seven components, all told. The set includes two double-sided map boards, one Librarian miniature, one Custodian miniature, eight Silence tokens, one Agony die, four Hint cards that summarize the new rules at the table, and four Library Tomes. One of the printed board sides is labeled for five-player play, which is where the five-player support comes from. Because both boards print on both sides, you get more than one layout to rotate through, not a single fixed map.
Area names on the board lean hard into the Celaeno setting: Byakhiary, Horrorium, the Floating Tower, Chamber of Sn'gac, Fountain, Gloomloft, Cursed Hall, Barrier of Naach-Tith, Guardian Under the Lake, and the Lake of Hali areas among them. It's a small detail, but it's the kind of thing that tells you this map was built as its own location, not a reskin of the default board with new paint.
How Do the Librarian and Custodian Change the Way You Play?
They change the risk math on early aggression. On the standard board, grabbing territory early is close to a pure upside move. On the Celaeno map, grabbing a Library Tome area is a calculated bet. You get the tome's bonus as long as you can hold the ground. Lose it, and the Librarian turns your gain into a liability, forcing you to pay in units, Doom, or the tome itself.
The Custodian works differently but pushes toward the same tension. It doesn't punish anyone specifically. It clears out whichever area a player chooses to target, which makes crowded areas dangerous for everyone in them, not just the faction that started the fight. Smart play means watching the Silence token count around the table as closely as you watch Doom totals, since either the Librarian or the Custodian could be one activation away.
Cthulhu Mythos lore is public domain and has been reworked by writers for close to a century, and the Great Library setting draws on that tradition of a forbidden archive of stolen knowledge, guarded and dangerous to those who linger too long.[2] Celaeno itself is named for a real star in the Pleiades cluster, one of the seven sisters recognized in astronomy long before any mythos writer borrowed the name for fiction.[3] The map's theme fits that lineage: a library too old and too well-guarded for anyone to hold safely for long.
What's the Price, and Where Can You Buy the Great Library at Celaeno Map?
The Great Library at Celaeno Map is $39.99 at the Petersen Games store and is in stock as of this writing. In-stock orders process within 48 hours. US shipping runs through USPS Ground Advantage, typically two to five business days after processing, with rates calculated at checkout.
You'll need the base Cthulhu Wars game to use it. The current O4 Edition supports the four core factions and is the foundation every map and faction expansion builds on. If you're still deciding where a second map fits into your collection, the full Cthulhu Wars collection lays out every faction, map, and Great Old One pack the line currently offers, so you can plan a build order instead of buying piecemeal.
Frequently Asked Questions
Do I need the base Cthulhu Wars game to use the Great Library at Celaeno Map?
Yes. The Great Library at Celaeno Map is a board expansion, not a standalone game. You need the base Cthulhu Wars game, its factions, and its core rules to play on the Celaeno board. The map replaces the standard board's geography; it doesn't replace anything else.
Does the Great Library at Celaeno Map add a new faction?
No. It adds two neutral units, the Librarian and the Custodian, along with Library Tomes, Silence tokens, and an Agony die. None of these belong to a faction. Every player interacts with them the same way, using Silence tokens earned each Doom Phase.
How many players does the Great Library at Celaeno Map support?
Up to five. One of the map's printed board layouts is labeled for five-player play. The set includes two double-sided boards, so you get more than one map configuration in the box.
What do the Librarian and Custodian actually do?
The Custodian moves to a chosen area, rolls the Agony die, and bumps that many units out to the Oubliette. The Librarian targets factions holding an Overdue Tome, forcing them to pay the roll off in lost units, lost Doom, or by returning the tome. Both are activated by spending Silence tokens.
Is the Great Library at Celaeno Map good for new players?
It's better suited to groups with some Cthulhu Wars sessions behind them. The Overdue Tome and Silence token systems add planning that's easier to manage once the base game's gate and combat rules are already second nature. New players can play on it, but they'll likely get more out of the standard board first.
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