Studio BBB has released MONOWAVE, its 2D puzzle action game published by Phoenixx, on September 17, 2026. The game is out on Steam and Switch, with PS5 and Xbox Series X|S versions set to follow in 2026.
Studio BBB is a South Korean developer whose 2D puzzle action game MONOWAVE launched on September 17, 2026. The studio's route to release runs through Phoenixx, a Japanese publisher. Phoenixx announced the date on August 13, 2026, and a trailer with new gameplay footage went out alongside that announcement. At that point Phoenixx said the game would launch for PC via Steam and Nintendo Switch on September 17, with PlayStation 5 and Xbox Series X|S versions to follow within 2026.
The game casts players as Mono, a guardian spirit of four emotions: happiness, sadness, anger, and anxiety. Each emotion is an ability, such as jumping high with happiness, shrinking with sadness, wall kicks with anger, and trap avoidance with anxiety. Mono's song spreads emotions to companions, who assist with traits like melting ice with fire or throwing Mono into the air. A free Steam demo covered up to the boss of Stage 1.
At Tokyo Game Show 2026, Phoenixx president Kazunori Sakamoto said he first saw MONOWAVE at Taipei Game Show and pursued it for a year or two. By release, Studio BBB CEO Lim Gwon-yong said four Phoenixx producers were working on the title. The one point the two sides argued over, per the account, was puzzle difficulty.
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Studio BBB released MONOWAVE on September 17, with Phoenixx handling publishing, the two companies said at Tokyo Game Show 2026. Phoenixx president Kazunori Sakamoto said he first saw the 2D puzzle action game at Taipei Game Show and pursued it for a year or two. Studio BBB CEO Lim Gwon-yong said four Phoenixx producers now work on the title.
Phoenixx announced on August 13, 2026 that MONOWAVE, a 2D puzzle action game developed by South Korea's Studio BBB, will launch for PC via Steam and Nintendo Switch on September 17, 2026. The PlayStation 5 and Xbox Series X|S versions are scheduled to follow within 2026. The game casts players as Mono, a guardian spirit of four emotions: happiness, sadness, anger, and anxiety. Mono uses these emotions as abilities to navigate stages, such as jumping high with happiness, shrinking to pass narrow paths with sadness, performing wall kicks with anger, and avoiding traps with anxiety. Mono's song spreads emotions to companions, who then assist with unique traits like melting ice with fire or tossing Mono into the air. A free demo on Steam lets players experience up to the boss of Stage 1. A new trailer featuring the latest gameplay footage was released alongside the announcement.