Basalt Bomb

Basalt bomb is a craftable weapon made at the Workbench. It belongs to the Ashlands tier of equipment and is tied to materials found in that biome, so it is not something a new character can make early without traveling there first.

Its required ingredients come from Ashlands enemies and environmental threats. Asksvin hides and Asksvin bladders are dropped by Asksvin, while Proustite Powder is dropped by Lava Blobs and Unstable lava rocks. Because all of these materials are region-specific, the weapon is effectively locked behind Ashlands progression and combat. Once the player has the needed components in their inventory, the recipe becomes available at the Workbench.

• Asksvin drops supply two of the weapon’s materials, so hunting them is the most direct way to stock up.
• Proustite powder has two Ashlands sources, giving some flexibility when farming the biome.
• Since the weapon is crafted at the Workbench, keeping one upgraded and accessible in a base is enough to make and replace it.
• Gathering in Ashlands is dangerous by default, so it is best to collect the materials while already preparing for the biome’s other threats.

The weapon’s name suggests a heavy explosive or impact-focused role, and its material set reinforces that it is meant for late-game use in one of Valheim’s most hazardous regions. Because no crafting amounts are listed in the available source material, only the ingredients and crafting station can be confirmed here.