CS2 souvenir packages are connected to the map played at that event. Skins that drop from these packages come with stickers and have the valuable Souvenir quality—usually, the most expensive CS2 skins. There is no need to use a key to open a souvenir package in Counter-Strike 2. Buy a special Viewer Pass, watch a CS2 Major tournament, and a souvenir package may drop for you. That’s how to get souvenir packages in CS2. However, you can also buy these containers on a skins marketplace.