In 'ChronoChums: Who's There?', you play as Max, a quirky time-traveling detective with a knack for solving mysteries across different eras. Utilize a peculiar device called the ChronoChum, which allows you to communicate with your past and future selves to piece together clues from various timelines. Each decision you make not only alters the course of your investigations but also affects the fate of the characters involved. With humor and suspense intertwined, navigate through a labyrinth of plot twists, temporal paradoxes, and eccentric historical figures, all while trying to prevent a catastrophic event that could erase your presence in all timelines.