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This is a paid asset, but now you can download I2 Localization Free.
I2 Localization v2.8.13 f2 (Latest version)
I2 Localization v2.8.9 f1
I2 Localization v2.6.6 b1
This is currently the most complete localization system available for Unity.
Unity UI, Unity 2D, TextMesh Pro, NGUI, 2D ToolKit, SVG Importer, Standard Components
Image, Text, Sounds, Fonts, Sprites, Atlases, Prefabs, TextMeshes, Dropdowns and more.
Built-in support for Google Translator to automatically localize all your labels into any language.
Google Spreadsheets and CSV files
Link external Spreadsheets and any change will be automatically downloaded, even after the game is released.
Detect and Fix Errors
Parse scenes to find missing or unused translations as well as duplicated or similar terms.
Set Secondary terms to change not just text and images, but also which Fonts and Atlases are used per language.
Callbacks and Parameters
Translations can be modified to insert Scores, Names and Game Variables using the languages grammar.
Built-in rules for each language covering those that just need singular/plural forms up to those that use 6 variants.
Right to Left Languages
Correct rendering of RTL languages with support for line wrapping and alignment.
Create Fonts with only the characters you are using. Link your AssetBundles to add more localized content.
Easy and Efficient
Edit and Preview all your translations in one location, then, at runtime only the current language is loaded. Using fast lookups to access it.
Set texts to be automatically shown as UPPER CASE, lower case, Upper first, Title Case, etc.
In Game Dynamic Translations
Easy API to translate chat messages and other dynamic texts at runtime
App Name and Store Localization
Translate the name of your game to all languages and show in the Android/IOS store which languages your game support
Simple yet Powerful Editors
Intuitive inspectors allow you Preview, Edit, Categorize, Create, Parse and Filter even large sources.
Compile Time Checking
Bake translations into script constants to avoid Typos when accessing them on the code.
Several actions to access and interact with Localized elements and switching languages Fast, Easy and Powerful? A no brainer!!
Get I2 Localization today and make your game ready for the World!
Google Spreadsheets and local CSV files can be linked as external sources for easy editing and sharing of translations. With a single click your game will be up to date with the latest changed.
Once your game is deployed, it will still download from the spreadsheets the latest changes and any new language. Allowing you to fix typos and make changes without releasing a new version of the game.
Right from inside the editor all Terms can be listed and modified. Changing the translations and adding new languages.
There are lot of visual tips for highlighting localization errors and tooltips to explain each feature.
Any term or language can be automatically translated by clicking a single button or by linking the language source with the Google Spreadsheet’s translation features.
Using automatic translations you can support any language from the very start and correct it later on.
Right to Left
Automatically fixes the translations to correctly display Right to Left languages.
This is an automatic process and will happen out-of-the-box for all RTL languages like Arabic, etc.
Provides configurable callbacks for correct concatenation and replacements.
That allows concatenation for adding names and values to the translation while following the language rules as the word order changes
based on the language.
Other modifications can include making the text all Capitals, lower case, etc.
Contact Information & Useful Links
Website: Inter Illusion
Forum: Inter-Illusion | Unity.
Tutorials: I2 Localization
Twitter: Follow me on Twitter
How to Localize a Project
Google Live Synchronization