Phoenixx Inc. (Headquarters: Musashino, Tokyo; Representative Director and President: Kazunori Sakamoto) announces that "Mono Step," a 2D puzzle-action game themed around emotions developed by Korea's "Studio BBB Inc.," has officially launched on Steam and Nintendo Switch™ today, Thursday, September 17, 2026.
At the same time, the original soundtrack that adds color to the game's fantasy world is also officially released today.
Additionally, "Mono Step" will be exhibited at the Phoenixx booth at "Tokyo Game Show 2026," which opens today. To commemorate the official release and exhibition, in addition to a gift giveaway on X, there will be a "Double Chance Event" on-site where participants can join a "100% winning raffle."
■ "Mono Step" Steam / Nintendo Switch™ versions officially launch today! Launch discount of 10% off starts simultaneously!
"Mono Step" is a puzzle-action game where you skillfully utilize four emotions, connect with surrounding companions, and move forward.
Players will harness the power of "song" that spreads emotions, embarking on an adventure with the spirit "Mono" to restore harmony to the world.
To celebrate the official release, both Steam and Nintendo Switch™ platforms will launch launch discounts, offering a 10% discount off the regular price. We welcome everyone to take this opportunity to experience the game.
【Steam】
Discount Period:
Thursday, September 17, 2026, 0:00 – Wednesday, September 30, 23:59
Discounted Price:
32.4 CNY
(Regular price: 36 CNY, 10% discount)
【Nintendo Switch™】
Discount Period:
Until Tuesday, October 6, 2026, at 23:59
Discounted Price:
32.4 CNY
(Regular price: 36 CNY, 10% discount)
■ The original soundtrack featuring all 38 tracks is now officially available!
The original soundtrack that adds color to the fantasy world of "Mono Step" is now officially available.
The soundtrack features 38 tracks composed by Wolfgang June. In addition to the game itself, we invite you to relive Mono and companions' adventure journey through the music.
Price: 650 JPY
Tracklist: 38 tracks in total
Composer: Wolfgang June
▼ Soundtrack Sales Page
■ The Chinese gaming community "TapTap" is hosting a wishlist event!
Currently, the Chinese gaming community "TapTap" is hosting a Steam game key giveaway for "Mono Step," selecting 6 players to receive game keys.
Players simply need to add "Mono Step" to their wishlist on the Steam store, take a screenshot proving the wishlist addition, and reply to the event post to participate in the giveaway.
No fighting, just solving puzzles through companionship and the interweaving of emotions—what kind of game is "Mono Step"?
In this game, players control the spirit "Mono," skillfully utilizing four emotions (Joy, Sadness, Anger, Anxiety) to restore harmony to this broken world.
The game design adheres to a warm philosophy: Mono does not defeat enemies through attacks, but rather approaches and heals their emotions.
● Flexibly switch emotions to pave the way
Mono can change its emotion based on the environment within levels, gaining different abilities. Understanding and skillfully utilizing the characteristics of each emotion will help players overcome challenges.
● Joy: Allows you to jump higher.
● Sadness: Body shrinks, allowing passage through narrow channels.
● Anger: Enables wilder movements such as kicking off walls.
● Anxiety: Moves cautiously, allowing you to avoid dangerous traps.
● Resonance puzzles that communicate hearts through "song"
The "song" sung by Mono possesses the special power to spread its emotions to surrounding companions.
Companions who share emotions through "song" will each exhibit their unique traits, such as breathing fire to melt blocking ice or tossing Mono high into the air, aiding players during their adventure.
● Fantasy-style line art world
Blends delicate lines resembling single-stroke drawings with a unique art style of vibrant neon colors.
A fantasy world symbolizing four emotions, accompanied by a soothing soundtrack, draws players into the depths of the story.
