14Yabancı is an online Süper Lig transfer simulation platform focused on helping football fans build and manage squads for Galatasaray, Fenerbahçe, Beşiktaş, and Trabzonspor. Presented as free to use, the service centers on the league’s foreign-player quota rules. Users can select a club, add or sell players, review squad depth, and create tactical formations while checking whether their roster complies with the applicable limits.

The simulator tracks foreign-player totals, including the standard quota, the allowance for younger foreign players, and a separate ZTK exception. It also displays estimated squad market value and annual wage costs. Users can enable a UEFA Champions League mode, which adds checks for competition A List requirements, including squad size, goalkeeper numbers, and club- or association-trained players.

Additional features let users save a squad to a gallery and share it in a feed. The site also offers account registration and login, social links, and information about privacy, terms, cookie preferences, contacting the service, and deleting an account.