Arknights Endfield Arena of Games runs from October 29 at 12:00 to November 19, 2026 at 04:00 server time. Complete Arena challenges for Arena Points, work through Arena Milestones and collect rewards including Oroberyl and Mark of Perseverance.
The event is already live, with a second round of challenges scheduled for November 11. Unlike a character banner, Arena of Games rewards come from playing challenges and building your score, not spending Headhunting attempts.
Arknights Endfield Arena of Games start and end dates
The Arknights Endfield Arena of Games opened on October 29 at 12:00 and ends on November 19 at 04:00 server time. The times are based on your game server. Tangtang’s Headhunting banner ends at 11:59 that day, but Arena closes almost eight hours earlier.
Another batch of Arena challenges becomes available on November 11 at 04:00 server time. You can work on the initial milestones before then and return for the new content when it opens.
How to earn Arena Points
Open the Arena of Games event and play its available challenges to earn Arena Points. Those points build towards Arena Milestones. Check the next milestone in the event screen to see which reward you are working towards.
Arena Points contribute to the Arena Milestone tiers. After completing a challenge, go back to the milestone screen to check the reward tiers you’ve reached. More challenges arrive on November 11, so players still working towards the later tiers will have additional activities.
| Date (server time) | Event milestone |
|---|---|
| October 29, 12:00 | Arena of Games begins |
| November 11, 04:00 | More challenges become available |
| November 19, 04:00 | Arena of Games ends |
Arknights Endfield Arena of Games milestone rewards
The event’s announced milestone rewards include 1,200 Oroberyl and Mark of Perseverance. The Oroberyl is part of the available reward total, not a payout for every challenge you finish.
The 1,200 Oroberyl is part of the event’s listed milestone rewards, rather than a single payout for completing one challenge. Check the milestone screen as your Arena Points increase and collect each tier’s reward once it becomes available.
Arknights Endfield Arena of Games November 11 content
At 04:00 server time on November 11, GRYPHLINE will add more challenge content to Arena of Games. This is an unlock date, not an extension: the event still ends at 04:00 on November 19. You can complete the existing challenges before November 11.
If you’re close to a milestone tier, finish the challenges you can already access. Return for the additional content on November 11, and check your final milestone rewards before the November 19, 04:00 server-time closing time.
Arknights Endfield Arena of Games versus Indigo
Arena of Games is built around Arena Points and milestone tiers. Indigo Experimental Operation instead involves choosing Test Criteria, earning Vitrified Indigo and spending that currency at the Secret Sanctuary shop. The two events have different progress systems.
The Secret Sanctuary shop for Indigo stays open until December 2, but Arena ends November 19. Arena Points and Vitrified Indigo are different rewards, so finishing one event won’t complete the other.
What to prioritise before November 19
Before Arena closes, open its event page and compare your Arena Points with the next reward tier. Complete the available challenges, collect any unlocked rewards and return on November 11 for the second round. There’s no need to wait for the new content before claiming rewards you’ve already earned.
The Arknights Endfield Arena of Games deadline is November 19 at 04:00 server time. If you’re also working on Tangtang’s RE-Factor banner, note that her pulls close at 11:59 on November 19. Those are different cutoffs, with the Arena event ending earlier.
Related Guides
Official source: GRYPHLINE Sanctuary of Ink Version Update Notes.
