https://www.gamespot.com/articles/assassins-creed-odyssey-lets-you-pay-for-permanent/1100-6462296/

Assassin's Creed: Odyssey, like many other AAA games, allows players to spend real money on various microtransactions. With the game now available, we've learned all about the items you can purchase using the franchise's Helix Credit system.

You can purchase Helix Credits in five different packages: