Room 404: Erotic Massage makes the therapist’s hands the center of the game. You run a private parlor in a shared building, meet clients in first person, and work through direct interactions in a 3D space. Sex is central to the premise, with the controls and equipment carrying much of the play between scenes.

Both Hands on the Controls

Mouse interaction, a dual-hand option, automatic interaction, and camera movement put you in control of the session. Clients progress through stages of response as you interact. Tool selection and room controls sit beside the action, keeping those choices close to what is happening on screen.

Official developer screenshot · Source: Steam · © シン・ギュラリティー / akaeroCore / DLsite

A Toolkit With Very Little Modesty

The toolkit includes 25 massage tools, 11 positions, and 21 interaction areas. That is a fairly specific inventory for a business with such a discreet address. Some tools and scenes are explicit. Lighting, music, and brightness can also be adjusted in the room.

Three adult clients give those sessions their story context: Sana, an intern approaching graduation; Koharu, an office worker; and Rion, a librarian. Each has her own personality and background.

An Adults-Only Appointment

Room 404 contains explicit sexual scenes and is intended for adults.

Release, Platforms, and Price

Developer シン・ギュラリティー and publishers akaeroCore and DLsite released Room 404 on Steam on September 16, 2026. Windows is the listed platform; macOS and Linux versions are not listed. The regular US price was $15.99 when checked.