Trading Card Inspector is a simulation game that places players in the role of a quality control inspector for the fictional Habubis Corporation's trading card game. The game features two main modes: Story Mode, where players navigate through a narrative filled with humor and intrigue, and Endless Mode, which challenges players to continue inspecting cards until they fail. The gameplay revolves around using various resources, such as guideline notes and errata memos, to determine the validity of trading cards, assigning values to valid cards, and shredding invalid ones.

As players progress, they will encounter a range of quirky characters and make impactful decisions that influence the unfolding story. The game mixes elements of strategy and humor, requiring players to adapt to increasing difficulty levels while managing the absurdities of corporate culture. With its hand-drawn art style and engaging storyline, Trading Card Inspector offers a unique experience that blends lighthearted gameplay with deeper themes of friendship and corporate intrigue.