Lost Ruins of Arnak: The Missing Expedition – What's Inside
By Asmodee – Asmodee USA | Published: 2026-11-04
Category: Product Reviews
The Missing Expedition adds two leaders, two research tracks, and new expedition cards to Lost Ruins of Arnak. Here's what's in the box and how the campaign works.
Quick answer
The Missing Expedition is a small expansion for Lost Ruins of Arnak that adds two new leaders, two new research tracks, and a set of new artifacts, items, and assistants. You can mix it into the base game for standard play, or use it as a solo or two-player cooperative campaign.
What the expansion adds to standard games
In a regular game, The Missing Expedition gives you more ways to shape your strategy without changing the core loop. The two new leaders each push a different approach, and the two research tracks open alternative routes to knowledge. The new artifacts, items, and assistants slot into the existing deck-building and worker-placement systems, so you can add them to your base game immediately.
The campaign is a separate way to play
The campaign mode is designed for solo play or two-player cooperative play. It strings scenarios together into a discovery-style experience, which is different from the competitive standard game. If your group mainly plays competitively with three or four players, the campaign won’t be your main draw, but the new leaders and research tracks still work in regular games.
What you need before buying
This is an expansion, not a standalone game. You need the Lost Ruins of Arnak base game to use it. The box does not include the base game components, so plan to have your core set ready before you open The Missing Expedition.
The Missing Expedition: common questions
- What does The Missing Expedition add?
- It adds two new leaders, two new research tracks, and new artifacts, items, and assistants. These can be used in standard games with the base set. The new leaders and tracks are the main strategic additions for regular play.
- Can I play it without the base game?
- No. The Missing Expedition requires Lost Ruins of Arnak base game. It is an expansion, not a standalone product. Check that you own the base game before buying.
- How does the campaign mode work?
- The expansion can be played as a solo or two-player cooperative campaign. It is a separate mode from the competitive standard game and is designed to be discovered over multiple sessions. The campaign is best for solo players or pairs who want a cooperative story experience.
- Does it work with other Lost Ruins of Arnak expansions?
- The supplied catalog information does not state compatibility with other expansions. The Missing Expedition is described as an expansion for the base game, so check official sources if you plan to combine it with other sets. If you already own another Arnak expansion, confirm mixing rules before your first game.
- Is this a good first expansion for Arnak?
- If you want more leaders and research options for the standard game, yes. If you only play competitively with larger groups, the campaign won’t be used, but the new cards and tracks still add variety. Choose it for the new strategic options, not just for the campaign.
Product facts
- Lost Ruins of Arnak: The Missing Expedition: The Missing Expedition is a new expansion for Lost Ruins of Arnak that requires the base game. You can’t play it on its own, so budget for the base game if you don’t already own it.
Lost Ruins of Arnak: The Missing Expedition
