Overwhelming is a narrative driven pixel art detective game set in an alternative late nineteenth to early twentieth century London. Players follow two protagonists who exist in parallel worlds, connected through mirrors. By switching perspectives, replaying key scenes, and piecing together shared and concealed information, By switching perspectives, replaying key scenes, and piecing together shared and concealed information, they investigate a series of fatal events shaped by urban legends, class tension, and personal guilt. The game focuses on slow observation rather than fast action. Clues are never absolute. What one character chooses to reveal or withhold reshapes not only the investigation, but also the relationship between the two leads. Through its replay system, mirrored environments, and layered character network, Overwhelming explores memory, trust, and the quiet violence hidden beneath everyday routines.