Battlefield 6 Deep Six End Date is October 12, 2026. The Collection Event began with Tidal Strike on September 15, giving players just under four weeks to complete contracts, gather Intel Devices and finish the collection for the Royal Navy Diver’s Knife.
This deadline is separate from the Battlefield 6 free trial, which ends much earlier on September 22. Deep Six continues after the trial closes.
Battlefield 6 Deep Six End Date and event window
Battlefield 6 Deep Six End Date is explicitly listed as October 12 in both the Tidal Strike event guide and Update 1.4.3.0 notes. The event starts September 15, so you have a substantial window to work through its Collection Event progression rather than needing to finish everything during launch week.
EA’s official event guide says Deep Six spans Battlefield 6 and REDSEC, with contracts and Intel Devices contributing to the collection and the Diver’s Knife waiting as the final reward.

The free trial ending does not end Deep Six
Battlefield 6 Deep Six End Date is easy to confuse with September 22 because that is when the current Battlefield 6 free trial ends. They are different promotions. The trial gives temporary premium access; Deep Six itself continues until October 12.
If you begin the event through the free trial, keep using the same EA Account. REDSEC remains free after September 22 and the Collection Event was designed to progress across both sides of Battlefield.
What you need to finish before October 12
Battlefield 6 Deep Six End Date matters most for anyone chasing the Royal Navy Diver’s Knife. EA says the knife requires completion of the full Collection Event, so partial progress is not enough to guarantee the weapon before the event closes.
Work through the active contracts, gather Intel Devices and use the in-game event track to check what remains. Our Deep Six event guide explains the confirmed reward categories and progression loop.
Will the Diver’s Knife be available later?
Battlefield 6 Deep Six End Date is the only guaranteed earning window EA has published for the knife. The launch materials do not promise a permanent post-event challenge or store route, so players who want the melee weapon should not assume it will simply move somewhere else on October 13.
That is not the same as saying the item can never return; live-service games can reissue content. It simply means the current confirmed method is to finish Deep Six while it is active.
How much time should you leave?
Battlefield 6 Deep Six End Date gives you enough runway to avoid a panic grind, but leaving every contract until the final weekend is still risky. Event requirements take longer when you are forcing objectives instead of progressing them naturally over multiple sessions.
Battlefield 6 Deep Six End Date is October 12, so use the weeks before it to make steady progress and check the collection meter regularly. If the Diver’s Knife is the only thing you care about, our Diver’s Knife guide keeps the target simple: full event completion before the deadline.
What needs finishing before October 12
Battlefield 6 Deep Six End Date matters most if the Diver’s Knife is your target. EA describes the Royal Navy Dive Knife as the ultimate reward for players who complete the full Collection Event, so reaching part of the track before October 12 is not the same as securing the melee weapon. Contracts and Intel Device collection both feed the event progression.
The September 15–22 Battlefield 6 free trial overlaps the opening week of Deep Six and includes event gameplay with contracts, giving non-owners a chance to start during the trial. If you continue after the trial, however, remember that the full paid Battlefield 6 content requires purchase once the free window ends, while REDSEC remains the free part of the ecosystem.
