📖 Help
Game overview, rules and FAQ.
What is Planète Kari'a?
A free online management and strategy game, with no ads.
- Progress at your own pace across 10+ complementary sections.
- Every decision impacts your economy and overall progression.
- Unlock new sections as your experience grows.
Game sections
Discover every facet of the adventure.
City
Build and upgrade your city's buildings, category by category.
Stories
Play branching narratives and advance the plot.
Trading Post
Buy and resell Materials as the daily rate swings to strike good deals.
Technologies
Research upgrades that cut the cost of all your actions.
Zoo
Manage enclosures, animals, buildings, and park life.
Race
Join the daily tournament and upgrade your vehicle.
Exploration
Launch planetary or space missions and collect Kii upon return.
Arena
Fight creatures in combat and climb the rankings.
Penal Colony
Run your orbital penal colony and make it thrive.
Ready to start?
Create your account for free and jump into the adventure.
📜 General rules
- Your progress in each section increases your overall XP, which unlocks the next sections.
- A daily login bonus is granted on your first connection of the day. Its amount scales with your overall progression.
- Improve your sections to grow this daily bonus.
🏙️ City
- Every building category can be upgraded several times — you choose freely which category to advance.
- Every category upgrade costs both Kii AND Materials; both costs increase with the total number of buildings already built in your city.
- Every construction takes time (from a few seconds to several minutes depending on your city's size) — only one construction at a time for the whole city.
- Kii produced by your city are credited automatically every time you log in, based on elapsed time (capped at 24h of production).
- Resources category buildings produce Materials per hour (credited automatically like Kii) instead of contributing to the Kii harvest.
- Every building belongs to a category (Habitat, Resources, Economy, Wellbeing, Administration, Safety) and gives a small bonus to the matching indicator (Resources produces Materials, the other 5 categories follow their own indicator).
- Resources and Economy buildings generate a bit of pollution, which slightly reduces your city's Happiness.
- You can rename your city anytime.
📖 Stories
- Each chapter offers 1 to 2 choices that change what happens next.
- Stories are played in order, one after another.
- Some choices can send you back to the start of the story.
⚖️ Trading Post
- The Trading Post is available from the start: it lets you quickly stock up on Materials to develop your City.
- The Materials rate changes every day. Buy when it is low, resell when it is high.
- The buy price is slightly above the rate, and the sell price slightly below: that is the Trading Post margin.
- Your purchases are limited by your Materials storage capacity, and your sales by your maximum Kii reserve.
- Each trade of a sufficient quantity advances your Trading Post mastery.
🔬 Technologies
- Each tier costs Kii and scales with level.
- Each completed tier advances this section and increases your overall XP.
🦁 Zoo
- The Zoo unlocks at a specific XP threshold.
- Each animal has a habitat and must be placed in a suitable enclosure.
- Compatible animal groups can share the same enclosure.
- Build specialized buildings to unlock new features in your zoo.
- The infirmary automatically heals sick animals every day.
- The restaurant automatically feeds animals daily.
- The reception allows you to sell your animals.
- The nursery gathers baby animals in a dedicated zone.
- The hospice takes care of animals nearing end of life.
- Animals consume food every day.
- An animal can get sick and must be healed before the critical delay.
- Births depend on adults present and enclosure capacity.
- Global limits apply to enclosures and the total number of animals.
- You can sell an animal to recover 50% of its purchase price.
🏎️ Race
- A race event takes place every day. Register before the deadline to participate.
- Choose your driving style from prudent, balanced, or aggressive before each race.
- Upgrade your vehicle engine and reliability for better results.
- Results are calculated once a day. The best drivers earn podiums and wins.
🗺️ Exploration
- Choose a planetary exploration (short, fewer Kii) or a space mission (long, more Kii).
- The mission takes several hours. Progress is shown with a countdown timer.
- Once the mission ends, confirm it using the dedicated button to advance this section.
- Only one exploration can be active at a time.
⚔️ Arena
- Fight creatures in turn-based combat. Each turn you choose an action: Attack, Defend, Dodge, or Special.
- Attack deals normal damage. Defend reduces incoming damage and boosts your next attack. Dodge gives a chance to avoid the enemy attack. Special is a powerful attack with a cooldown.
- Your HP, attack, and defense are fixed: only the difficulty you choose affects your odds of winning.
- Three difficulty levels: Easy, Medium, Hard. The higher the difficulty, the stronger the opponent.
- Each victory earns ranking points (+10 pts). A defeat causes a small point loss (-5 pts).
- The arena ranking is based on your accumulated score. The number of fights per day is limited.
Quick FAQ
Essential answers to get started smoothly.
How to progress quickly at the beginning?
Start by building in the city (your Kii and Materials are credited automatically every time you log in) and advance in stories: these are the only two sections available before your first XP milestone.
Why are some sections locked?
Each section requires an XP threshold. Keep progressing in active sections to unlock them.
Where can I see new features?
The latest updates are displayed directly on the home page.
How do I track my progress?
Use the History tab on your profile, plus the Ranking page, to get a clear overview of your progression.
How does global progression work?
Each playable section contributes to the average progression shown on the home page.
Why can't I access a section?
Your current XP is below the required threshold. Keep progressing in already unlocked sections.
How can I earn Kii quickly?
Build and upgrade your city's buildings (Kii credited automatically every time you log in) and enjoy the daily login bonus granted on your first connection of the day.
What exactly does ranking show?
It compares profiles by XP and then Kii to provide a clear hierarchy.
What is the Public Profile for?
It lets you view a player's stats, badges, and progression state.
What should I do if an action fails?
Check your Kii, section unlock status, and the conditions shown under the action button.
How can I secure my account?
Use a strong password, a valid email address, and update your password from Settings when needed.
What are Materials for?
It's a 2nd City resource, used alongside Kii to upgrade your building categories. Build Resources buildings to produce them automatically every hour (credited like Kii every time you log in).