Longship spawner is a one time spawner item in Valheim. Its in-game item ID is ship_construction, which you can drop into the console with spawn ship_construction to give yourself one — append a number like spawn ship_construction 50 to spawn a stack. A Longship spawner is the internal placement-helper prefab used when building a Longship at a Workbench. It is not a player item. The spawn command requires cheats — enable them with devcommands after opening the console.
Spawns one Longship spawner at your location.
Spawns one Longship spawner at your location.
Spawns five Longship spawner at your location.
Spawns twenty Longship spawner at your location.
A Longship spawner is the internal placement-helper prefab used when building a Longship at a Workbench. It is not a player item.