Can I build a portal on a moving longship or cart?

In Valheim, portals are a crucial tool for fast travel, allowing players to move quickly between distant locations. However, building a portal on a moving longship or cart is not possible due to the game''s mechanics. Portals require a stable, stationary foundation to function, and vehicles like longships and carts are considered dynamic objects that cannot support portal structures.\n\nTo build a portal, you need to place it on solid ground or a stationary structure like a wooden floor or stone platform. The portal itself requires 20 Fine Wood, 2 Surtling Cores, and 10 Greydwarf Eyes to craft. Once built, you must pair it with another portal by assigning both portals the same tag. This allows instant travel between the two locations.\n\nIf you attempt to place a portal on a longship or cart, the game will prevent you from doing so. The portal structure will not snap to the vehicle, and even if you manage to place it using creative building techniques, it will not function. This is because the game''s physics engine treats vehicles as moving entities, and portals require a fixed location to operate.\n\nFor players looking to transport items or resources across long distances, the best alternative is to establish a network of portals on land. For example, you can build a portal near your base and another near a resource-rich biome like the Black Forest or Mountains. This allows you to quickly travel back and forth without relying on vehicles.\n\nA common challenge players face is transporting heavy or non-portal-friendly items like metals (e.g., Copper, Iron, or Silver). Since these items cannot be carried through portals, you will need to use a longship or cart to transport them manually. Plan your routes carefully, and consider building small outposts along the way to store resources or repair your ship.\n\nTo optimize portal usage, always carry portal materials with you when exploring. This includes Fine Wood, Surtling Cores, and Greydwarf Eyes. By having these items in your inventory, you can quickly set up a temporary portal to return to your base or another location. This is especially useful in dangerous biomes like the Swamp or Plains, where you may need to retreat quickly.\n\nIn summary, while you cannot build a portal on a moving longship or cart, you can use portals effectively by placing them on stable ground. Plan your portal network strategically, and always carry portal materials for emergencies. This approach will save you time and make exploration much more manageable.\n\nPractical tips: Always pair portals with unique tags to avoid confusion. For example, use descriptive names like ''Base'' or ''Swamp Outpost.'' Additionally, consider building a portal hub at your main base to connect multiple locations. This centralizes your fast travel system and makes it easier to manage.