Online Soccer Manager (OSM) is a sports simulation game by Gamebasics, officially released on November 6, 2010. The game was developed to provide an immersive football management experience, evolving over the years with updates and new features to enhance gameplay.

In OSM, players take on the role of a football team manager, making critical decisions regarding line-ups, tactics, training, and player transfers. The game simulates matches daily, requiring players to prepare their teams strategically to achieve favorable results.

The storyline of OSM revolves around managing a football club of the player's choice, navigating through various competitions and challenges while aiming for success in the league. Players can switch teams each season, adding variety and new challenges to the experience.

OSM stands out with its extensive official licenses for clubs and competitions, a user-friendly interface, and the ability to compete with friends in the same league, making it a highly engaging and social football management game.