Peak of FluencyRaise a pet,
master Thai.
A roguelike card battler built on spaced repetition. Every card you play is a Thai word.
Study, care, run.
Three loops feed each other. The words you learn keep your pet's bond strong and decide how hard you hit.
Study
Review flashcards between runs. Spaced repetition brings each word back right before you would forget it.
Care
Your pet's Bond drops while you're away. Correct answers keep it up. Let it reach zero and your pet runs away.
Run
Set out on an expedition of battles, rest sites, events and treasure, all the way to the boss.
Every card
is a word.
- 01
Answer to play
Read the word, pick the meaning. A correct answer plays the card at full power.
- 02
Spend energy wisely
Each card costs energy. Watch the enemy's intent and choose between attacking and guarding.
- 03
Build the deck as you go
Draft a new card after each win, improve or release cards at rest sites, and pick Boons that bend the rules.
Five tones,
one color each.
Thai changes meaning with pitch. Every word in the game is colored by its tone, so your eye learns the pattern before your ear does.
Flat & steady.
Deep & grumpy (“Grrrr”).
High to low (“No!”).
Sharp (“Hey!”).
Low to high (“Huh?”).
Spaced repetition
Words you miss come back sooner. Words you know drift further out. Overdue reviews speed up Bond decay, so the schedule stays honest.
Mastery unlocks power
Each pet unlocks Boons and Cards chapter by chapter, weakest first and strongest last. Studying makes your runs easier.
Your pace
Choose Relaxed, Steady or Intense to set how fast new words arrive. Turn on Focused Learning and every card asks a question.
Inside the game.
A few more screens from the climb.
Questions.
How do I join the beta?
Tap Join the Android beta and send us the Gmail address you use on your Android phone. We'll add you and reply with the Google Play link: open it with that account, accept the invite, and install the game from Google Play.
Do I need to know any Thai to start?
No. The first chapter starts from zero, with romanization and tone colors on every word.
Is it free?
Yes. No ads, no in-app purchases and no third-party trackers.
What happens if I skip a day?
Your pet's Bond drops slowly while you're away, and a full bar drains in about 24 hours. If it reaches zero your pet runs away. A Yadom brings it back and keeps your streak.
Do I need to be good at card games?
No. Battles reward knowing the words more than clever combos, and strategy grows as you unlock Boons and Cards.
What do I keep when a run ends?
Your vocabulary progress, spells, artifacts and prestige carry over. Coins are spent during the run. Stars stay for the Magic Shop.
What happens to my data?
Your account keeps your progress synced across devices, and you can delete it at any time from Settings. Read the privacy policy.
Which languages are next?
Thai is the first language. More are on the way.
Press kit.
Facts, logos and screenshots for writers and creators.
- Title
- Peak of Fluency
- Genre
- Roguelike card battler · Language learning
- Platforms
- Android
- Language
- Thai (more coming)
- Release
- Closed beta, 2026
- Contact
- peakoffluency.language145@aleeas.com
Your pet
is waiting.
The closed beta is open on Android. Be one of the first to climb.