CrossFire is a free-to-play first-person shooter that features two mercenary corporations named the "Black List" and "Global Risk," fighting each other in an epic global conflict. Players assume the role of either a Black List or Global Risk mercenary, joining an online team that must work together to complete objective-based scenarios. With the exception of the Zombie mode and Wave mode, each mode can support a maximum of 16 players, each divided into an 8-man team.
Players will progress and be promoted through various Military Ranks, beginning at trainee, with the highest being Marshall. Players also have the ability to customize their character's equipment and appearance through in-game items.
CrossFire has a free currency which is called Game Points (GP), which are earned through playing and completing matches, buying premium items that grant bonus GP, or fulfilling certain missions. Premium and special items like modified weapons can only be bought using monetary currencies. The content tends to vary from version to version.