October marks the 10^th year since the original Borderlands debuted on October 20, 2009, and they are showing their appreciation for a full decade of support with a five-week Borderlands Anniversary Celebration. For the entire month of October (and a little bit of November), Borderlands 3 Vault Hunters of all levels can score extra in-game loot and bonuses.

Each of the next five weeks will feature its very own theme in Borderlands 3, encouraging different in-game activities to maximize rewards. On Tuesday, October 1 at 9:00 a.m. Pacific Time, Boss Week has gone live and will remain active until October 8 at 8:59 a.m. Pacific Time, when the following week’s theme will begin. During Boss Week, certain bosses will have an increased chance to drop specific Legendary items. For a full boss-by-boss breakdown of Legendary loot drops, check out this blog.

Keep in mind that this is just the beginning of the Borderlands Anniversary Celebration. While they’re saving some surprises for later, here’s an early look on the weekly themes:

• Week 1 (October 1-7): Bonus Boss Loot!
• Week 2 (October 8-14): Rare Spawn Hunt!
• Week 3 (October 15-21): Show Me the Eridium!
• Week 4 (October 22-28): Mayhem on Twitch!
• Week 5 (October 29 – November 4): It’s a secret…

They will be unveiling all the bonuses for each week’s theme every Monday on borderlands.com, so be sure to check back to see what’s in store for the Borderlands Anniversary Celebration.