How do you build a megabase that is resistant to enemy raids?

Building a megabase in Valheim that is resistant to enemy raids requires careful planning, strategic use of game mechanics, and the right materials. Enemy raids are triggered by specific events, such as defeating bosses or spending time in your base. To create a raid-resistant megabase, you need to focus on defense, terrain manipulation, and structural integrity.\n\nFirst, choose a biome that offers natural protection. The Plains biome is ideal for megabases due to its flat terrain and access to endgame resources like Black Metal and Lox. However, it is also home to dangerous enemies like Fulings and Deathsquitos. To mitigate this, build your base near the edge of the Plains and another biome, such as the Meadows or Black Forest, to reduce enemy spawns. Alternatively, the Meadows biome is safer for new players, as it has fewer hostile creatures.\n\nNext, manipulate the terrain to create natural defenses. Use the Hoe to raise the ground around your base, forming a wall or moat. A raised earth wall is nearly indestructible and prevents enemies from climbing over. Alternatively, dig a deep moat around your base using the Pickaxe. Ensure the moat is at least two meters deep and wide enough to stop enemies from jumping across. This method is particularly effective against Trolls, who can destroy wooden structures but cannot cross deep trenches.\n\nFor structural defenses, use Stone or Black Marble, as these materials are highly resistant to damage. Start by building a stone foundation and walls, then reinforce them with Iron Gates or Wood Iron Poles. Stone structures require a Stonecutter, which is crafted with 10 Wood and 2 Iron. Place Workbenches or other crafting stations around your base to prevent enemy spawns within your walls. Additionally, build a perimeter fence or palisade to slow down attackers and give you time to respond.\n\nIncorporate defensive structures like Ballistae and Spike Traps. Ballistae are automated turrets that fire arrows at enemies and can be crafted with 10 Fine Wood, 8 Iron, and 3 Surtling Cores. Place them strategically around your base, especially near entry points. Spike Traps, crafted with 4 Wood and 2 Bronze, can be hidden in the ground or placed along walls to deal damage to enemies who get too close.\n\nLighting is another crucial aspect of base defense. Enemies are less likely to spawn in well-lit areas, so place Torches, Sconces, or Dvergr Lanterns around your base. These can be crafted with basic materials like Wood, Resin, and Bronze. Additionally, tame and breed Wolves or Lox to act as guards. Wolves are particularly effective against smaller enemies, while Lox can tank damage from larger foes.\n\nFinally, plan for emergencies by creating multiple escape routes and safe rooms. Build hidden tunnels or underground bunkers using the Pickaxe and Stone. Stock these areas with food, weapons, and healing items in case of a prolonged raid. Always keep a Portal nearby for quick escapes or reinforcements.\n\nBy combining these strategies, you can create a megabase that is both functional and resistant to enemy raids. Focus on terrain manipulation, sturdy materials, and defensive structures to ensure your base stands strong against even the toughest foes.