Galeria Twierdza Zamość provides nearly 28,000 sqm GLA. The family-oriented shopping centre with an entertainment component houses over 90 shops of popular brands including H&M, Reserved, New Yorker, Deichmann, CCC, Douglas, Smyk, 5.10.15, Empik, Sizeer, Martes Sport, Rossmann, home&you and many others. It also features the region’s largest electronics shop MediaMarkt. Customers can also do their shopping at the Intermarché grocery store.

In November 2022, the offer of Galeria Twierdza Zamość was extended to include a retail park. Customers will find Action, KiK, JYSK and Sinsay shops in the building adjacent to the shopping centre.