How do you build a moat to defend your base from trolls?

Building a moat to defend your base from trolls in Valheim is a highly effective strategy, especially in the early to mid-game when trolls pose a significant threat. Trolls are large, slow-moving enemies that deal massive damage to structures and players, but they cannot swim or cross deep water. A moat creates a barrier that trolls cannot pass, keeping your base safe from their destructive attacks.\n\nTo build a moat, you will need a pickaxe, which can be crafted using 10 wood and 1 hard antler (obtained from defeating the first boss, Eikthyr). The pickaxe is essential for digging into the ground to create the moat. Choose a location around your base where you want to dig, ensuring the moat is wide and deep enough to prevent trolls from crossing. A good rule of thumb is to make the moat at least 4-5 meters wide and 3-4 meters deep.\n\nStart by equipping your pickaxe and standing at the edge of your base. Begin digging a trench by left-clicking to remove dirt. Work your way around the perimeter of your base, creating a continuous trench. Be mindful of the terrain, as uneven ground can make digging more challenging. If you encounter large rocks or boulders, you can break them with your pickaxe to clear the way. Once the trench is complete, fill it with water by digging deep enough to reach the water table or by connecting it to a nearby body of water.\n\nOne common challenge is ensuring the moat is wide and deep enough to stop trolls. If the moat is too narrow or shallow, trolls may still be able to cross it. To test the effectiveness of your moat, try jumping across it yourself. If you can easily jump over it, it’s likely too narrow. Additionally, trolls have long arms, so make sure the moat is wide enough to keep them from reaching your structures.\n\nAnother practical tip is to combine your moat with other defensive measures, such as walls or spike traps. While the moat will stop trolls from reaching your base, other enemies like greydwarves or skeletons may still pose a threat. Building a wooden or stone wall behind the moat adds an extra layer of protection. You can also place spike traps along the inner edge of the moat to damage any enemies that get too close.\n\nIn terms of biome considerations, moats are most effective in the Meadows or Black Forest biomes, where trolls are commonly found. If you’re building in the Black Forest, be cautious of other enemies like greydwarves and skeletons, as they may attack you while you’re digging. Always keep your weapons and armor equipped while working on your moat to defend yourself.\n\nFinally, remember that moats require maintenance. Over time, erosion or changes in the terrain may cause the moat to become less effective. Periodically check the depth and width of your moat to ensure it remains a reliable barrier. If you expand your base, extend the moat to cover the new areas.\n\nIn summary, building a moat is a straightforward yet highly effective way to protect your base from trolls in Valheim. With a pickaxe, some patience, and careful planning, you can create a defensive barrier that keeps your base safe from these formidable foes. Combine your moat with walls and traps for maximum protection, and always be prepared to defend yourself while working in dangerous biomes.