How can I use the Hammer tool to create multi-level structures?

The Hammer tool in Valheim is essential for building multi-level structures, allowing players to create complex and functional bases. To begin, you must first craft a Hammer using 3 Wood and 2 Stone at a Workbench. Once equipped, the Hammer provides access to the building menu, where you can select various pieces like walls, floors, roofs, and stairs. Multi-level structures require careful planning, as stability and material availability are key factors.\n\nTo build a multi-level structure, start by laying a solid foundation. Use core wood or regular wood beams to create a sturdy base, ensuring the ground is level. Uneven terrain can cause stability issues, so consider flattening the area with a Hoe if necessary. Once the foundation is set, place vertical beams or walls to define the height of your structure. Each piece you place will have a stability value, indicated by color (blue for most stable, red for least stable).\n\nFor multi-level builds, stairs are crucial. Craft wooden stairs or ladders to connect floors. When placing stairs, ensure they align properly with the floor above to avoid gaps. You can also use beams to create support columns, which improve stability for higher levels. If you notice parts of your structure turning red, add more support beams or reduce the height of the build. Stability is calculated from the ground up, so taller structures require more reinforcement.\n\nRoofing is another important aspect of multi-level structures. Use thatch or wooden roofs to protect your build from rain, which can degrade materials over time. For larger builds, consider using angled roofs or combining different roof pieces to create a visually appealing design. Be mindful of the weight of your roof, as heavy materials can strain the structure''s stability.\n\nA common challenge in multi-level builds is managing space and resources. To optimize space, use half walls or beams to create lofts or storage areas. For resource efficiency, gather materials like Core Wood from Pine Trees in the Black Forest biome, as it provides stronger support than regular wood. Additionally, always carry extra materials like Wood and Stone to avoid running out mid-build.\n\nPractical examples include creating a two-story longhouse with a storage loft or a watchtower with multiple levels for defense. For advanced players, experimenting with stone structures can add durability and aesthetic appeal, though stone requires a Stonecutter and access to the Swamp biome for Iron to craft it.\n\nIn summary, using the Hammer tool to create multi-level structures involves careful planning, stability management, and resource optimization. Start with a strong foundation, use support beams, and connect levels with stairs or ladders. Pay attention to stability indicators and reinforce weak areas. With practice, you can build impressive and functional multi-level bases to suit your Viking survival needs.