Screenshots
Watch trailer on Steam ↗Mainu
Kanmai · Published by Kanmai
2 user reviews — 50% positive (2 reviews) · 1 achievements
Last updated 7 Oct 2026
Join Tonu as he navigates through a mall to collect capsule toys and battle bosses with them.
£2.49
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Action, Adventure, Indie, Strategy, Casual · 2025 · More under £5 games
Explore a thrilling mix of action and adventure as Tonu collects capsule toys while battling bosses in Mainu. Dive into the casual yet strategic world of this unique indie game from Kanmai, set for release in 2025.
About this game
Mainu is a fast-paced action adventure set inside a mysterious 13-floor mall consumed by energy. When Tonu meets a girl named Venera, he learns that a powerful being named Ormatsu has unknowingly infused his excess magic into ordinary capsule toys—creating living creatures called Mainus. Drawn to the mall’s endless flow of light, food, and movement, Ormatsu spreads through the building like a black hole, splitting himself into thirteen extensions that drain the life of each floor. Tonu’s own force energy allows him to control the awakened Mainus and fight back. Guided by Venera, he must collect, master, and unleash their power to stop Ormatsu before the entire mall—and reality itself—is consumed.
System Requirements
Will my PC run this? →Minimum
- OS: 7/8/10/11 (64-bit)
- Processor: Intel Core i3-2100 / AMD FX-6300
- Memory: 2 GB RAM
- Graphics: Integrated Graphics (Intel HD 4000 or better)
- DirectX: Version 10
- Storage: 300 MB available space
- Sound Card: Standard Audio
Recommended
- OS: Windows 10/11 (64-bit)
- Processor: Intel Core i5 / AMD Ryzen 3
- Memory: 4 GB RAM
- Graphics: NVIDIA GTX 750 Ti / AMD Radeon R7
- DirectX: Version 11
- Storage: 500 MB available space
- Sound Card: Standard Audio
Supported Languages
Latest news
Patch NotesOfficial
Mainu is now available on macOS!
Thank you for your patience. You can now enjoy collecting all the Mainus on macOS!-Gracias por su paciencia. ¡Ahora pueden disfrutar recolectando todos los Mainus en macOS!-Grazie per la vostra pazienza. Ora potete divertirvi a collezionare tutti i Mainus su macOS!-Спасибо за ваше терпение. Теперь вы можете наслаждаться сбором всех Mainus на macOS!-お待ちいただきありがとうございます。macOSでMainuをすべて集める楽しさをぜひお楽しみください！-感谢您的耐心等待。现在您可以在macOS上尽情收集所有Mainu了！-기다려 주셔서 감사합니다. 이제 macOS에서 모든 Mainu를 수집하는 재미를 즐겨보세요!Read full article on Community Announcements (officialkanmai)Patch NotesOfficial
Floor Visual Enhancements
Patch notes description: * Added new shaders to mall floor tiles to enhance lighting, color depth, and overall visual quality * Improved the look and feel of the mall environment with richer, more polished floor visuals * Minor visual polish pass to improve atmosphere and presentationRead full article on Community Announcements (officialkanmai)AnnouncementsOfficial
🎉 Happy New Year from Kanmai!
Thank you to everyone who supported Mainu this year! 2025 marked the birth of Kanmai and the release of our first game, Mainu — a creature-collector adventure set inside a mysterious mall being overtaken by strange energy.Developing Mainu has been an unforgettable journey, and I am truly grateful for everyone who has played, shared, and been part of this growing community.From all of us at Kanmai — have a joyful and inspiring New Year!今年「Mainu」を応援してくださった皆さま、本当にありがとうございます！ 2025年は、私たちKanmaiが誕生し、初のゲームタイトルMainuをリリースした特別な年となりました。 Mainuは、不思議なエネルギーに包まれたショッピングモールを舞台に、仲間のクリーチャーを集めて戦うアドベンチャーゲームです。Mainuの開発は忘れられない旅となり、プレイしてくださった方、シェアしてくださった方、そしてこの成長するコミュニティの一員となってくださったすべての皆さまに心から感謝しています。Kanmai一同より、喜びとインスピレーションに満ちた新年をお迎えください！Read full article on Community Announcements (officialkanmai)Patch NotesOfficial
Mainu Patch 1.0.2 – Floor Fixes and Visual Update
Fixed a bug on Floor 5 that prevented players from progressing through the floor. Resolved an issue on Floor 7 where the puzzle had no barrier blocking the path. Updated the selected capsule highlight color to gold for improved visibility.Read full article on Community Announcements (officialkanmai)Patch NotesOfficial
Mainu v1.0.1 – Capsule Update
Mainu v1.0.1 is now live! This update focuses on visual refinements to improve clarity and consistency during battles.🎨 Changes in this update:Capsules for Mainu team members now display correctly based on their rarity.Adjusted opacity and scale for better visibility in all battle scenes.Fixed Tonu’s star circle alignment issue appearing in certain scenes.A small but important update to keep the experience polished across every floor and boss fight. Thank you for supporting Mainu!Read full article on Community Announcements (officialkanmai)
