We make games that respect your time.

1. Everything is earned by playing.

Every mode, every category, every avatar, every chest. No content is hidden behind a barrier. If you run out of lives, you have six ways to recover them inside the game itself: wait 30 minutes, watch a rewarded ad, open a chest, ask a friend for a gift, complete daily missions or win online matches.

That word — everything — is the line we won't cross. If a feature isn't reachable by playing, it isn't in Mentium.

2. AI is a tool, not a marketing gimmick.

In 2026, "with AI" is a sales label. Plenty of games slap a chatbot in for the sake of it and call it innovation. Mentium uses it where it actually matters:

• Rival with persistent memory: your rival remembers how often you've beaten them, the topics you're strong in and where you slip. Their pre-match and post-match comments are unique to you.
• AI Category: you type a topic and the AI generates a quiz on the spot. No pre-written question bank; every match is new.
• Conversational Detective: you interrogate 5 suspects in natural language. The AI understands, remembers contradictions and reacts.
• Daily Coach: analyzes your history and suggests what to play today based on your weak spots. It's not "good morning". It's "I see you've failed African geography three days in a row — shall we tackle it?".
• Smart Review: identifies sub-topics where you stumble and generates a targeted refresher. Free.

If AI doesn't add anything concrete, we don't add it. For example: Classic mode has hand-written questions by humans. That's what works best there. End of.

3. Your data is yours. No shadiness.

Server in Belgium (EU), 100% GDPR-compliant, option to play anonymously without creating an account, full data deletion from Settings. We don't sell your information to third parties. We don't share profiles with advertisers. We don't use dark patterns to make you accept things by accident.

We respect Google's UMP (personalized ads consent) properly: if you say "no", ads will be contextual (based on what's on screen, not your profile). And you can change consent any time from Settings.

4. Truly indie, made from Madrid.

King Island Studio is one person: Valentín Stancu, from Arganda del Rey (Madrid). There is no marketing department telling me which tweets to write. The decisions are mine and it shows in every detail.

That means things take longer, but it also means each decision is considered. Each chest, each mode, each rival line. If something doesn't work, write to me directly at hello@kingislandstudio.com and I'll answer.

5. Speaking 10 languages isn't translating the same text 10 times.

Mentium supports Spanish, English, French, Romanian, Brazilian Portuguese, German, Italian, Turkish, Polish and Dutch. But it's not just translation. The Daily Challenge is culturally anchored: if you play in Turkish, the questions have real Turkish context. If you play in pt-BR, same with Brazil. The AI understands that a player in Romania wants questions they recognize, not literal translations from Spanish.

It's the difference between "international" and "actually international".

6. What we will NOT do.

• Never lock playable content behind a barrier. What exists in Mentium can be played.
• Never sell your data.
• Never add NFTs, blockchain, integrated cryptocurrencies or anything similar.
• Never use dark patterns: fake timers, synthetic FOMO, simulated "last chance".
• Never spam you with notifications. Max 3 a day plus the coach, and all can be turned off.

7. What we WILL do.

• Listen to feedback. Seriously. If you write, I answer, not a bot.
• Publish honest devlogs on how the game is built (including mistakes).
• Iterate with real data, not assumptions.
• Keep the game alive after launch — this isn't a drop-and-go.
• When we ship on Play Store, give exclusive rewards to those who joined the beta.

---

Early access: it's here.

Mentium 1.0 “Curie” is now available in early access on Google Play. You can download it for free right now.

Players who complete 10 games during this phase unlock the Pioneer Pack: exclusive avatar, banner, frame, “Pioneer” title and a Relic chest. Available only during early access — once the window closes, that door is shut for good.

Thanks for reading this far. If any of the above resonates, this game is built for you.

— Valentín · King Island Studio