Mobile gaming is a $100+ billion market and deeply international. The highest revenue markets — USA, Japan, South Korea, China, and Germany — each have unique language preferences.
Challenges in Game Localization
Context: Maintain game-specific terminology and tone
Cultural adaptation: colors, symbols, and gestures vary by culture
Text length: UI elements have fixed sizes — translations must fit
ROI Consideration
Localization costs: ~20 € (8 languages via AI)
Expected download increase: 200-400% in localized markets
Step-by-step game localization
Identify target markets based on download data and revenue potential
Externalize all strings into resource files
Translate UI and dialogues
Localize app store listing — title, description, keywords
Test localized version — text overflow, cultural appropriateness
What to Localize
In-game UI and menus
Dialogues and story texts
Tutorials and help texts
Push notifications
App Store listing — title, description, keywords, screenshots
In-app purchase descriptions
Why Game Localization Matters
Localized games see 120% more downloads in target markets
Japan and South Korea: players expect native language support
App Store featured placements favor localized apps
Fazit
Game localization is one of the most profitable investments for mobile game developers. Start with the top 5 markets and scale based on download data.