The 24pp title launched with a 2,000-run trial issue with plans to increase distribution to 10,000 in the coming months.
The magazine, the second issue of which came out on 11 April, is the result of a partnership with Webjam, an online interactive community.
The publication features news, opinion, reviews and events happening around the Northern Line.
North London-based City Printing produced the magazine on its four-colour Heidelberg Speedmaster SM52 using 100gsm stock. The title was also collated and stitched at the company before distribution.
The Other Side editor Sam Lassman Watts said: "There is a certain character about the Northern Line that you don't get on some of the others."
He added: "Working hand-in-hand with Webjam to foster an online community is critical to the way we want to take the magazine."
City Printing employs six staff and was established 30 years ago. It runs kit including a Xerox DocuColor 6060, as well as the four-colour Heidelberg Speedmaster.
Tube line gets its own freesheet courtesy of City Printing
City Printing is producing The Other Side: a new monthly freesheet, distributed in and around areas served by the Northern Line tube service.
