Metro: Last Light developer 4A Games has revealed new information for their upcoming single-player DLC for the post-apocalyptic title, detailing four unique packs to help expand on the universe.

“Artyom’s story may have been concluded in Metro: Last Light, but there are other characters with stories to tell, some familiar locations that fans of the Metro series wanted to revisit, and some new challenges that 4A wanted to explore,” said Andrew Prokhorov, Creative Director at 4A Games. “Since completing the game we have been working on these new stories and hope to release them throughout the summer.”

Currently three packs have been revealed that will offer single-player content - the ‘Faction Pack’,' Chronicles Pack’ and ‘Tower Pack’. The ‘Faction Pack’ and the ‘Chronicles Pack’ will include new, original single player gameplay that expands on the Metro: Last Light universe and story. The 'Tower Pack' will be offering players unique solo challenges to the Metro veteran.

A fourth path will also be available, titled ‘Developer Pack’, and will offer players some "interesting tools with which to explore the world of Metro." No other details were given on what exactly these tools will be, but late last month 4A's Andrew Prokhorov, the creative director for Metro: Last Light, revealed that an SDK would be available soon after release so hopefully this pack delivers on that.

Those looking to grab all the DLC in one will be happy to know that a Season Pass is also available to purchase, offering those who do purchase the pass a discount on all future DLC. The Season Pass also grants an additional weapon, the deadly Abzats, a semi-automatic shotgun rifle with a devastating secondary fire mode that unleashes six shells in one blast.

The Metro: Last Light Season pass is available to download now from Xbox Live, PlayStation Network and Steam for $14.99 or 1200 MSP now. PlayStation Plus subscribers are entitled to an additional 25% discount on the Season Pass between May 22nd and June 5th.