Some skins in Fortnite are battle pass rewards, while others are locked behind simple quests. Kratos is not one of these skins. In order to earn the right to deck your Fortnite character out as the Ghost of Sparta, you will have to complete the Herculean feat of emptying a sizable portion of your wallet into the in-game store.
Kratos is an item shop exclusive. You can buy him and his equipment (a Leviathan Axe pickaxe skin with a built-in emote, a Guardian Shield glider, and a Mimir head back bling) either piecemeal or together in a bundle. If you want the entire set, you will need to spend around 3,300 v-bucks (about $33), unless you can snag it during a sale. But, none of the items are limited to the PlayStation 4 or PlayStation 5. Once you buy the skin, you can play as Kratos on the PC, Xbox, Switch, and mobile versions of Fortnite, which is as awesome as it sounds.
However, while the Kratos skin isn’t exclusive to Fortnite on the PlayStation, a special armored variant is locked behind playing the game on the PS5. You don’t have to buy the Kratos skin through the console, just play a match on it.