Vilkas's Sword is obtained from Vilkas and given to Eorlund Gray-Mane, as part of the initiation quest for the Companions. When first speaking to Kodlak Whitemane in order to join the Companions, he sends the Dragonborn outside of the Meadhall to have a friendly duel with Vilkas to show their strength. After hitting Vilkas several times, the latter asks to bring his sword to Eorlund Gray-Mane, so it may be sharpened.
- It is possible to obtain the sword (once the Companions quest line is started), by having him as a follower and trading items with him and taking it.
- The first Companions quest cannot be skipped (without the use of console commands), which results in the sword being only obtainable if it is pickpocketed from Eorlund (after giving it to him).
- Because Vilkas' sword is a common Skyforge Steel Sword, it can thus be bought from Eorlund Gray-Mane and renamed.
- When the sword is in the inventory alongside another Skyforge Steel Sword, it will be renamed Skyforge Steel Sword. However, once the original Skyforge Steel Sword is removed from the inventory, it will return to being called 'Vilkas's Sword.'