
How VerboLabs Helped a Mobile Game Increase Player Retention, Downloads, and In-App Purchases Through End-to-End Game Localization
Client Overview
A mid-sized mobile game studio launched a casual strategy RPG in English, targeting North American and European markets. The game included:
- Story-driven quests
- In-game tutorials and UI text
- Character dialogues
- Seasonal events and promotions
While the gameplay mechanics were well-received and reviews were positive, the studio faced a growth plateau shortly after launch.
Business Challenge
Post-launch performance data highlighted several critical issues:
- High player drop-off during onboarding
- Low engagement with story-based missions
- Weak traction in high-growth markets such as India, Brazil, Mexico, and Southeast Asia
The core issue was clear: players in non-English-speaking regions struggled to fully understand the game experience. Without in-house expertise in professional game translation and cultural adaptation, the studio needed an external partner.
Objectives
The studio partnered with VerboLabs to:
- Localize the complete player journey, not just surface-level text
- Improve player retention and average session duration
- Increase organic installs across emerging markets
- Boost in-app purchase (IAP) conversions
- Preserve the game’s tone, humor, and character identity across languages
Localization Scope
Using VerboLabs’ specialized game translation capabilities, the project covered five high-potential languages:
- Spanish (LATAM)
- Portuguese (Brazil)
- Hindi
- Indonesian
- Thai
Assets Localized
The localization strategy extended beyond gameplay text and included:
- UI/UX elements (menus, buttons, tooltips)
- In-game dialogues and quest narratives
- Tutorials and onboarding screens
- Character voiceovers
- App store descriptions, trailers, and promotional creatives
This end-to-end approach ensured consistency across both gameplay and marketing touchpoints.
Solution — VerboLabs Game Localization Workflow
Phase 1: Game & Audience Analysis
VerboLabs began with a detailed analysis of the game ecosystem:
- Studied gameplay flow, character arcs, and monetization triggers
- Identified drop-off points during onboarding and early gameplay
- Created language-specific glossaries and style guides
This foundation ensured linguistic accuracy and player-friendly messaging across regions.
Phase 2: UI/UX & In-Game Text Localization
Leveraging its expertise in localization services, VerboLabs:
- Adapted UI strings to remain clear and readable on small screens
- Rewrote button labels and prompts to sound natural and action-driven
- Customized tutorial instructions based on regional gaming behavior
UI Example:
- English: “Upgrade Now”
- Literal Translation: Direct command with limited player context
- VerboLabs Localized Version: A region-friendly phrase that clearly explains the benefit of upgrading
Result: Reduced onboarding confusion and higher tutorial completion rates.
Phase 3: Voiceover Localization
To strengthen emotional engagement:
- Native voice artists were selected to match character personalities
- Localized voiceovers were recorded for main storylines and live events
- Audio timing was synced precisely with gameplay interactions
Outcome: Players reported a stronger connection with characters in localized versions.
Phase 4: App Store & Marketing Localization
To improve discoverability and installs:
- App store descriptions were rewritten using region-specific keywords
- Promotional banners and seasonal event creatives were localized
- Store listings were optimized to increase visibility in regional app stores
KPIs Measured (90 Days Post-Localization)

1. Player Retention Growth
| Metric | Before Localization | After Localization |
| Day 1 Retention | 32% | 45% |
| Day 7 Retention | 14% | 27% |
| Day 30 Retention | 6% | 15% |
Insight: Native-language tutorials and storytelling significantly improved long-term engagement.
2. App Downloads Growth
| Region | Download Increase |
| Brazil | +24% |
| Mexico | +21% |
| India | +29% |
| Indonesia | +18% |
| Thailand | +16% |
Overall Result: +22% average growth across localized markets.
3. In-App Purchase (IAP) Performance
| Metric | Before | After |
| IAP Conversion Rate | 1.8% | 3.2% |
| Avg. Revenue per User (ARPU) | $1.20 | $2.05 |
| Event-Based Purchases | — | +61% |
Insight: Clear, localized offers and reward descriptions increased player trust and spending.
Player Feedback Highlights
- “The game feels made for our region.”
- “Story missions finally make sense.”
- “Tutorials are much easier to follow now.”
App store ratings in localized regions improved from 3.9 to 4.4 stars on average.
Operational & Cost Efficiency
| Workflow | Time to Launch New Language |
| In-house Attempt | 6–8 weeks |
| VerboLabs Localization | 3–4 weeks |
- Faster rollouts helped the studio capitalize on seasonal events
- Localization costs were recovered within 2.5 months through increased IAP revenue
Impact Summary
- +22% increase in regional downloads
- +38% improvement in Day 30 retention
- +26% increase in IAP revenue from localized markets
- Higher player engagement and improved app store ratings
Key Takeaways
- Game localization goes beyond translation
UI clarity, voiceovers, and player behavior play a critical role. - Retention improves when players fully understand the game
Native-language onboarding reduces early churn. - Localized monetization performs better
Clear offers and rewards drive higher conversion. - Speed matters
Faster localization unlocks revenue opportunities sooner.
Conclusion
This case study demonstrates how professional game localization directly impacts engagement, retention, and revenue. By localizing UI/UX, in-game content, voiceovers, and marketing assets, VerboLabs helped the studio evolve from a regional launch to a scalable global success.

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