Lost Ruins of Arnak now has four major content paths: Expedition Leaders, The Missing Expedition, Twisted Paths and the 2026 Surprise Shipment. The Adventure Chest is a storage product that includes Twisted Paths rather than a separate fourth rules system.
Arnak expansion comparison
| Expansion | Main change | Best fit |
|---|---|---|
| Expedition Leaders | 6 asymmetric leaders, new research tracks and cards | Best first expansion for competitive play |
| The Missing Expedition | 2 leaders, 2 research tracks, six-chapter campaign | Solo/2-player campaign plus more standard-game content |
| Twisted Paths | Large double-sided map, Owl/Spider temples and new research systems | Experienced groups wanting the biggest board refresh |
| Surprise Shipment | 50 new Item/Artifact cards, 2 sites and 1 rebalanced site | Established collections wanting more card variety |
Expedition Leaders
Expedition Leaders gives each player an asymmetric leader with a distinct ability package. It also adds two research tracks, new Items, Artifacts, Sites, Guardians and Assistants.
Read the Expedition Leaders guide →
The Missing Expedition
The Missing Expedition adds two more leaders and two research tracks, but its defining feature is a replayable six-chapter campaign for solo or two-player cooperative play.
Read The Missing Expedition guide →
Twisted Paths
Twisted Paths is the final major expansion. It replaces the base map with a larger double-sided board featuring the Owl Temple by day and Spider Temple by night, each with its own research track and mechanisms.
Read the Twisted Paths guide →
Adventure Chest
The Adventure Chest combines a large storage solution with the Twisted Paths content. It does not include the base game, Expedition Leaders or The Missing Expedition.
Surprise Shipment
Announced in July 2026, Surprise Shipment is CGE’s final addition to Arnak. It adds 50 cards, two new Sites and one rebalanced Site and is designed to fit inside the Adventure Chest.
Read the Surprise Shipment guide →
Which Arnak expansion should you get first?
Expedition Leaders is the cleanest first purchase because it adds asymmetry and variety without replacing the familiar board. Choose Missing Expedition if solo/co-op campaign play matters most; Twisted Paths if your group wants a new map-level puzzle.
Related guides
Publisher sources
Expansion line checked September 2026.