French Game developer Ubisoft announced the Assassin's Creed Unity Season Pass on Monday.

The Season Pass costs US$30 and includes access to new missions, gear, weapons, skills and a brand-new Assassin's Creed game set in China.

It starts with the Dead Kings storyline that will kick off after the main game.

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Arno, the protagonist, leaves Paris and visits Saint Denis to fight the Raider faction beneath the catacombs of Beijing.

Players will have to explore the underground network of tunnels and use the Arno's lantern to guide them. They also need to kill animals that wander in the darkness.

In order to accomplish Arno's missions, new weapons including the Guillotine Gun will help gamers. Various new side missions are also included in the expansion of Dead Kings.

Gamers can join new activities such as murder mysteries, treasure hunts, contracts and new co-op missions as well.

With the AC Season Pass, players can obtain 30 new items including a Fleur de Lys sword and three new missions that take place in Paris.

Gaining new gear, skills, and outfits can be carried back to the main game.

Dead Kings missions are described as dark and really different from the rest of the game.

The most interesting part of AC Unity's DLC season pass, however, is the brand-new game titled Assassin's Creed Chronicles: China. It's a standalone story that takes place in 16th century China.

The lead character named Shao Jun is a female assassin who was trained by Ezio Auditore from former Assassin's Creed games.

She comes back to Beijing as the last assassin of the Chinese Brotherhood and is intent on  vengeance for her lost comrades.

Shao Jun acquires new skills and gear such as the Foot Blade and Jian Sword. The game will include places like the Great Wall of China and the Forbidden City.

Behind the Assassin's Creed Chronicles: China is Climax Studios and responsible for the Castlevania: Lords of Shadow PC version.

Ubisoft said players can access Castlevania: Lords of Shadow via the Season Pass only.

All new content for the game will be available by early 2015. Players can now preorder the Season Pass and an "exclusive" double-handed war axe awaits them.

TagsAssassin's Creed Unity, Assassin's Creed DLC Season Pass, Ubisoft, Assassin's Creed Chronicles: China