Countdown Numbers and Letters 2 is a free mental agility game inspired by the Countdown TV show. It offers a variety of minigames focused on numbers and letters challenges. The game features three main categories: Numbers, Letters, and Classic, each designed to enhance mathematical skills and language abilities.

In the Numbers category, players aim to reach or approximate a target number by combining six numbers using basic arithmetic operations. Game modes include Training, Time, and Levels, catering to different play styles. The Letters category challenges players to form correct words using nine letters, with longer words earning more points. Players can choose to play in five different languages. The Classic category combines numbers and letters games in a series of ten tests, offering a mix of challenges for players of all levels.