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Polaris Engine is a development tool to create visual novels for various platforms.

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What is Polaris Engine?

Polaris Engine is the world leading software for developing Visual Novels. It has an open-source philosophy and is designed with a true cross-platform portablity including iOS and Android. It is equipped with features and tools of production-grade quality. Polaris Engine is perfect for both beginners and seasoned creators alike.

The Mission, Vision and Values of Polaris Engine

  • Mission
    1. Simple: Anyone can easily create visual novels.
    2. Fast: We build apps with fast native technologies only.
    3. Free: We are an open source project and we make our technology public as pro-bono-publico with respects for intellectual properties of others.
  • Vision
    1. Earning: Game developers can publish their games on stores and get income.
    2. Prosperity: Our aim is to create a world where anyone can make a living with just a single computer including mobile devices.
    3. Talent: Bringing people with talents but difficulties into the world (Giftedness support)
  • Values
    1. Information: We hold the belief that the creation and generation of information including story writing is humanity's true value.
    2. Market: We shall complete the market launch of game subscriptions with world leading platform partners.
    3. Diversity: Develop, distribute, and publish on all platforms - Polaris Engine seeks the true portability and we call it diversity.

The Characteristics of Polaris Engine

  • Polaris Engine has lightweight yet powerful development tools that run on Windows PC, Mac, iPhone, iPad, Android and Chromebook.
  • Polaris Engine is ideal for an introduction to indie game development.
  • You can create multilingualized games.
  • You can export a game app for iPhone or Android by a single click
  • You can publish your games to commercial stores for monetization and it doesn't cost fees at all for engine usage.
  • You can shift from an indie production to a commercial production smoothly.
  • Polaris Engine is released under the MIT license and you don't have to worry about engine costs.
  • Just following our easy tutorial makes you up!
  • Full-scale development tools supports from debugging to publishing for high work efficiency.
  • Light and stable operation for players; A great work should have a great feel!

What kind of environment does Polaris Engine work on?

Polaris Engine is comatible to almost all platforms.
For example, the following apps can be exported:

  • iPhone and iPad apps
  • Android apps
  • Windows apps (with/without installer)
  • Mac apps
  • Web browser apps

Recommended for the following developers

  • Those who want to create visual novels and publish them as free games
  • Those who are looking to eventually publish them to app stores
  • Those who want to run games on their own smartphone/tablet (no store review)
  • Those who want to publish games on Googla Play, App Store, Steam, DLsite and more (need store review)

Other benefits include:

  • Available for all genres, including Otome-games, Gal-games, and age-rated games
  • Completely free for commercial use (MIT license)
  • Quick responses for support requests and immediate fixes for bug reports
  • Developer can create games on Mac and Linux as well as Windows

App Lineup

Polaris Engine (Windows/Mac/Linux)

Polaris Engine is a powerful production support tool. You can edit and debug your game with Polaris Engine.
Polaris Engine also comes with an export function. You can specify a target OS and export your games for it.

Polaris Engine Mobile (iPhone/iPad/Android/Chromebook)

Polaris Engine Mobile makes it possible for you to create games anywhere you want with iCloud Drive/Google Drive/OneDrive/Dropbox.

Polaris Engine Web (browsers)

The preview version is here.

The Web browser version of Polaris Engine

Games made with Polaris Engine can be published directly to the web browser.

With image and audio compressions, a game as large as 200 MB can be provided on the Web.
This is ideal for product demos and trial versions, as users on the go can play the game on the spot with their smartphones.

As a specification, all game data is downloaded together at the page display stage. This is not affected by changes in communication quality while playing on a train, etc. On a smartphone/tablet, a two-finger tap has the same effect as a right-click. (the UI is designed without right-clicking)

The iOS version of Polaris Engine

After exporting with Polaris Engine, a game made with Polaris Engine can be built with a single click by opening it in Xcode provided by Apple. If you just want to transfer your game to your own iOS device, no screening is required, and it takes less than 10 minutes. You can use TestFlight for beta distribution.

The Android version of Polaris Engine

After exporting with Polaris Engine, a game made with Polaris Engine can be built with a single click by opening it in Android Studio provided by Google. If you just want to transfer your game to your own Android device, no registration is required and it takes less than 10 minutes.


Polaris Engine has a very relaxed license!

  • Polaris Engine is published under the MIT license on GitHub
  • Anyone can use this program freely ("free" as in free speech and "free" as in free beer), regardless of commercial, genre and age-rated
  • The author cannot restrict usages in the first place, due to the OSS license

A History of the Polaris Engine Series

  • On December 2001, Suika Studio was first released
  • During 2002 to 2003, Suika Studio was widely distributed by CD-ROM media that came with magazines
  • On Mid 2004, the final update of Suika Studio was released
  • On August 2016, Suika2 was first released
  • On April 2022, Suika2 Pro was first released
  • On August 2022, Suika2 was completed with the GUI support
  • On October 2022, the project formed a GitHub organization
  • On January 2023, Suika2 Kirara was released and later deprecated
  • On May 2023, Suika2 Visual Novel Award 2023 was held
  • On October 2023, several awarded works were published on iOS and Android stores
  • On December 2023, Suika2 Pro Mobile and Suika2 Pro Desktop were released on the stores
  • On April 2024, Polaris Engine was releaseds


User Community
Join the User Community

Our community is a cherished and invaluable space that embraces developers, creators, and end-users irrespective of their nationality, language, ethnicity, color, lineage, beliefs, sexuality, gender, education, age, religion, or identity. That's why we'd love you to join our community! You're definitely deserved to be a part of it.
We're looking forward to working with you!


Feel free to contact the author at core@polaris-engine.com

Statement: The World Polaris Engine Aim For

In the late 1990s and early 2000s, software such as Kirikiri/KAG and NScripter led the doujin and commercial visual novel market and helped the industry grow.

However, after the major gaming platform shifted to smartphones in the 2010s, no standard software was created to run visual novels on smartphones.

This was due to the market's observation that light games would be replaced by HTML5 technology. Thus, many of the visual novel engines that emerged in the 2010s were web technologies. However, the future of light games being HTML5-based did not arrive. There are hybrid apps that mix web and native technologies, but HTML5 never became a mainstream game technology. As a result, until October 2023, there was no standard software that can easily bring visual novels to smartphones. That kind of software was missing.

Polaris Engine is something that has never existed anywhere before. Namely, it is open source, cross-platform including smartphones, and runs natively, not on the Web or Python. Polaris Engine is the first visual novel engine with these features that can be used for both doujin and commercial purposes.

Polaris Engine encourages the creation of games by individuals and doujin, and expands the platform on which these works are published, from PC and Web, to smartphones.

Polaris Engine makes it easy for popular works to generate revenue on smartphone app stores. By establishing a scheme that allows unique creators to generate revenue, Polaris Engine aims to create a small market that will eventually grow into a large industry.

Polaris Engine ultimately envisions a world where just a single computer becomes a great production tool for the disadvantaged. This will break out of the stagnation that has prevailed in Japan for the past 30 years. It will also bring prosperities to developing countries. That is the innovation we will realize.