Lost Ruins of Arnak: The Missing Expedition — English expansion

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Consider The Missing Expedition if you own Arnak and want a campaign for one person or two people cooperating. The box adds a six-chapter adventure as well as components for standard games. Those are two different ways to use it, with different player limits.

Exact English expansion

This is Czech Games Edition model CGE00067, EAN 8594156310677. It requires the Lost Ruins of Arnak base game. CGE lists ages 12+ and a playing-time estimate of 30 minutes per player; these remain publisher guidance.

Keep the two player counts separate

The campaign can be played solo or cooperatively with two players. Other new components can be used in standard Arnak games with up to four players. A four-person group should not buy this expecting a four-player cooperative campaign.

That distinction is also useful when buying for a household with changing attendance. Ask which mode will actually be used most often. A pair interested in following a campaign has a different reason to buy from a group seeking extra components for its usual competitive sessions.

What the box adds

The published list includes two leader boards, eight leader-specific cards, a double-sided research track, 21 item cards, 13 artifact cards, 56 encounter cards and campaign materials. It also supplies additional sites, guardians, assistants and other pieces. Campaign-only components are listed separately by CGE; the base game’s shared equipment is still needed.

Required versus optional purchases

Required: the Arnak base game. Optional: Expedition Leaders. CGE explicitly documents compatibility with the earlier expansion’s leaders, but owning that earlier expansion is not a condition for buying this one.

Keep the English editions together when using the combinations checked in this guide. This research establishes that particular pairing; it does not determine every cross-language or later-edition combination. If your existing box differs, compare its exact identity and relevant publisher guidance before adding it to the order.

Choose the addition you want

If the campaign is not your reason to expand, compare Expedition Leaders’ six different leaders with the additions listed here. If you do not own Arnak at all, begin by assessing the base game. A new solo player could also compare the standalone Under Falling Skies before committing to a base-game-plus-expansion purchase.

Questions before checkout

Does this box work without Arnak?

No. It is an expansion, not a standalone campaign game.

Do I need Expedition Leaders first?

No. CGE describes it as a compatible optional addition.

Research basis

AG101 checked CGE’s campaign description, standard-game scope, component list and compatibility statements, plus the Amazon catalog identity, on November 2, 2026. The guide reports documented options, not firsthand campaign completion or a tested replayability score.

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