Arknights is celebrating its one-year anniversary with a series of in-game events and an art contest

Yostar Limited's popular tower defence game Arknights is now one-year old, which means it's time to celebrate. This will include the arrival of Episode 7, in-game events, an art contest and a series of music collaborations.

From tomorrow, December 30th, players will be able to get one free roll each day for a fortnight alongside an additional log-in reward. Elsewhere, players will be sent Operator Savage through an in-game mail. There will then be another sign-in event a later date too that will net players a free Amiya outfit - Fresh Fastener and Operator THRM-EX.

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New operators called Weedy, Elysium and W will also be available, with the latter character only being collectable for a limited-time. On top of that, Episode 7, The Birth of Tragedy will also be playable. It will see players fighting against Patriot's army and gaining a deeper understanding of the conflicts between Rhodes Island and Reunion.

• To check if the new operators are in meta, visit the Arknights tier list

Yostar Limited has also teamed up with DeviantArt, one of the largest online art communities, to host a fan art contest. The event encourages players to create art of operators from the game with $18,000 worth of prizes on offer for the winners.

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They also recently held a YouTube live stream that consisted of appearances from the game developer, characters’ voice actors and actresses, Yostar Pictures team, Grammy-nominated DJ/producer Steve Aoki and Dutch DJ Duo Yellow Claw.

During the stream, they played Jeff Williams X Arknights theme for the first time. A teaser for Steve Aoki and Yellow Claw collab soundtrack for Episode 7 was also played too and you can hear both through the embedded videos in this article.

Arknights is available now over on the App Store and Google Play. It's a free-to-play game with in-app purchases.