Why does the SDK return one language at a time?

The game only needs the player's language. Returning a single language keeps responses and the on-device cache small. GetAllLocalizations returns every key for one language in a single call.

What happens if a key has no value for the requested language?

The app endpoint falls back to English when a value exists and reports which language was actually served, so you can always show something sensible.

How many keys can I store?

Key counts are generous on every tier and scale with your plan. Check your plan details in the horizOn dashboard for exact limits.

Localization

Manage all your in-game text in 15 languages and update it live without a new release

Get Started Free

Fifteen Languages, One Key

Store up to 15 language values per key in one place and edit them side by side, the same way you manage news translations.

Players Download Only Their Language

The SDK requests a single language at runtime, so devices only ever fetch the strings they actually need.

Live Updates, No Rebuild

Fix a typo or reword a button and players see it after the next cache window, with no store submission required.

Quick Integration

// Unity C# - Localization
using HorizOn;

var horizon = new HorizonClient("YOUR_API_KEY");

// Pick the player's language once
horizon.Localization.SetLanguage("de");

// Fetch a single string for the current language
var label = await horizon.Localization.GetLocalization("menu.play");
Debug.Log($"Play button: {label}");

// Fetch every key for one language at startup (cached in memory)
var all = await horizon.Localization.GetAllLocalizations("de");
foreach (var pair in all) {
    Debug.Log($"{pair.Key}: {pair.Value}");
}

REST

# REST API - Localization

# Fetch every key for one language
curl -X GET "https://eu.horizon.pm/api/v1/app/localization/all?lang=de" \
  -H "X-API-Key: YOUR_API_KEY"

# Fetch a single key (falls back to en if the language is missing)
curl -X GET "https://eu.horizon.pm/api/v1/app/localization/menu.play?lang=de" \
  -H "X-API-Key: YOUR_API_KEY"

# List the languages that actually have content
curl -X GET https://eu.horizon.pm/api/v1/app/localization/languages \
  -H "X-API-Key: YOUR_API_KEY"

Frequently Asked Questions

Ready to Integrate?

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Quickstart Guide