Arknights has officially rolled out its massive 6th-anniversary update, titled 'Ruins'.

On the 16th, Yostar announced that the 'Ruins' event is now live to celebrate six years of the service.

The update introduces three event stages: Street Without Night, Old Ruins of Kazimierz, and Stairs of Severance, which will open sequentially until the 13th. Completing limited missions nets you the 5-star operator 'Matsukiri', along with 'Mikage Diner' themed furniture, module materials, 'Idle Chat', and raffle tickets for a celebrity fan meeting. 'Idle Chat' can be swapped for furniture, upgrade materials, LMD, and battle records, while those raffle tickets can be exchanged for Matsukiri tokens, headhunting permits, and exclusive skins.

Four new operators are also joining the fray. The limited 6-star defender 'Hoshiguma the Breacher' leads the charge, accompanied by the 6-star supporter 'Haruka', plus 5-stars 'Kichisei' and 'Matsukiri'. 'Hoshiguma the Breacher' is an alter version of the classic defender Hoshiguma, and we’ll finally get a look into her past through the event's narrative.

Yostar has kicked off a slew of events alongside the update. The limited headhunting banner 'Flame That Never Returns' runs until the 30th, featuring 'Hoshiguma the Breacher' and a few other 6-star operators. If you pull 300 times, you're guaranteed to get 'Hoshiguma the Breacher'. Plus, log in to claim a 10-pull headhunting permit, with a free daily headhunting pull and two Orundum draws added to the mix.

Furthermore, until March 2nd, players can snag a special recruitment permit to choose one 6-star operator, along with a free collection choice ticket. Cumulative login bonuses will also shower you with event furniture, Orundum, and module upgrade items.

On a side note, Yostar is hosting a 6th-anniversary pop-up store, 'Winter Invitation', at Lotte Cinema Konkuk University Station from the 23rd of this month through February 8th.