Promise Mascot Agency: The Art of Kaso-Machi artbook now available on Steam

by Mikhail Madnani on 03 December, 2025

Kaizen Game Works has released a digitial artbook for Promise Mascot Agency on Steam titled Promise Mascot Agency: The Art of Kaso-Machi.

Promise Mascot Agency: The Art of Kaso-Machi features over 400 pages of artwork, developer commentary, and more going over the game's development. It is available as DLC for the game and is 30% off until December 17. You can also buy it with an additional discount through the Promise Mascot Agency: Promises Kept bundle. The base game is also 30% today as a part of the Steam Daily Deal.

If you haven't already done so, read my interview with Promise Mascot Agency Game Director Oli Clarke Smith covering development, self-publishing, Switch 2, & more here. You can find James' review here and my platform comparison going over PS5, Switch, and Steam here.

Promise Mascot Agency is now available for PlayStation 5, Xbox Series X|S, Nintendo Switch, and PC (Steam).