QUICK ANSWERS

Frequently asked questions

Career mode

How do I start a Career?

Choose Career → Start new career. Give your 18-year-old singles player a name, country and discipline. Spend all 40 starting points across the seven attributes and choose one trait on the radar to enable Create player. Follow the first-week walkthrough.

How do I select a trait on the radar?

Click a trait’s name or point. Its label becomes outlined, and the chart shows a green point for the trait it counters and a red point for its weakness. Grey points are even matchups. You can choose only one trait. Read the radar guide.

Do the bracketed stats include coach chemistry?

Yes. The bracketed value includes your coach’s modifier and chemistry. Green means an increase and red means a decrease. These match values can exceed 100. Trait matchup advantages are calculated separately. See an example.

Can I keep my coach next season?

Yes. After the year review, choose Coaches → Keep coach and confirm renewal. Chemistry increases by +1, or +2 if you share a country, up to +10. Hiring a different coach resets chemistry to their starting value. Compare keeping and replacing a coach.

What can I do if there’s no tournament this week?

Open Home → Continue and choose a training camp or Rest. Either advances the calendar by one week. Check Schedule for the next event you can enter. Find events open to a rookie.

Why is a tournament locked even though my player’s rating improved?

Higher tiers use your world rank. For example, Super 300 requires rank 256 or better. Training improves your skills, while results in tournaments earn ranking points. See the entry cutoffs.

Why did the same camp give me less XP this week?

A camp pays less when you start tired. A Standard camp earns 75 XP below 40 fatigue, but only 38 XP when you start at 66 fatigue. Rest removes up to 35 fatigue. Compare camp intensities and recovery.

Where did my training XP go?

Look at the progress bars for the two trained stats. An Attack camp puts 80% of its XP into Attack and the rest into Net. General XP from matches appears as a spendable balance in Player Profile. See how a camp’s XP is split.

Why did I lose to a lower-rated opponent?

The overall rating is a starting point. Fatigue affects how fresh you are, Defense can blunt an opponent’s attack, and Composure matters late in a game. Court drift and indoor temperature can also change the chances of a rally. See what affects a Career match.

Does skipping the rallies change the result or the XP?

No. Skip to result reveals the same score and match XP as watching to the end. You can also pause or change the speed to follow a close game. Follow a tournament match.

Can I rest during a tournament?

Weekly rest is available between tournaments. Finish the event, then choose Home → Continue → Rest to spend a week recovering. Plan your recovery week.

How do I get back to my saved Career?

Use the same browser or app and choose Career → Continue saved career. Career progress is stored locally. Clearing that storage removes the save, and completing a new player replaces your active career. Read the Career walkthrough.

How do I earn Career XP?

Training camps award XP to the stats you practise. Played matches give General XP and can also develop specific skills. Read about training and match XP.

Do Career achievements give XP?

Yes. Each Career achievement pays its listed General XP once per career, directly into your balance. Open Player Profile → Career achievements to see the rewards. Achievements from other modes do not give Career XP.

Simulation and general questions

Is 21–0 free to play?

Yes. This version is free to play in your browser, with no account, subscription, or in-game purchases.

Can I install the game or play offline?

You can add 21–0 to your home screen using your browser's install or Add to Home Screen option, where supported. An internet connection is required to load the game, simulate matches, and resume saved progress. After an online visit, the offline screen helps you reconnect; it does not run matches offline.

Which badminton events can I play?

Play men's singles, women's singles, men's doubles, women's doubles, or mixed doubles. Team modes include the Thomas Cup, Uber Cup, and Sudirman Cup. Individual modes offer a single knockout tournament or a World Tour season.

What is a player-year card?

A card represents a player or pair in a particular season. The pool spans 1990–2026, so two cards for the same player can have different ratings. The game lets players from different eras meet in a simulated draw.

Do I need an account, and is my progress saved?

Play without an account. In Career, choose Continue saved career on the same browser or app to return to your player. In Simulation, choose Continue saved game on the same browser. Simulation saves expire after 30 inactive days. Clearing browser storage removes access to your saved progress.

Can I skip rally playback?

Yes. Skip to result completes the remaining rally log and commentary while keeping the same match result. You can also pause, resume, or choose a playback speed from 0.5× to 8×. Closing the playback window pauses it.

What is the difference between Easy and Hard?

Easy shows player ratings during the draft. Hard hides them, so you choose using the player, season, and your badminton knowledge. Hard does not give opponents a separate scoring advantage.

Can a match finish 21–0?

Yes, but it is not guaranteed. Games normally go to 21 points, with a two-point lead needed from 20–20 and a cap at 30. A completed match is best of three games; an injury retirement can end it early.

Why does a higher-rated player sometimes lose?

Ratings influence the chances of winning rallies; they do not fix the outcome. Match form, game form, opponent history, and random variation can produce upsets. World Tour fatigue also changes the challenge across a season.

How do fatigue and injuries work?

In the World Tour, playing adds fatigue and time off helps recovery. Higher fatigue increases injury risk for both your entrant and AI opponents. An injury ends the match by retirement and requires seven full calendar days of recovery, which can force you to skip events.

How do I qualify for the World Tour Finals?

Earn season points through World Tour events. The standings highlight the eight qualifying places, with a maximum of two entries per country. Sorting the table changes its display order, not the official ranking or qualification rules.

What happens if I do not qualify for the Finals?

The eight qualifiers still play. Choose Simulate World Tour Finals to run the 12 group matches, two semifinals, and final, then see the champion and complete results. The Finals also run in the background if you enter a parallel event. Their champion appears in your season results, and your player does not receive Finals appearance credit or points.

Can I play against another person?

This version is single-player against simulated opponents. It does not include online multiplayer, ranked accounts, or a public player leaderboard.

Is 21–0 an official BWF game?

No. It is an independent, unofficial game and is not affiliated with or endorsed by the Badminton World Federation, competitions, teams, or players. Ratings, schedules, and results are part of the simulation.

Does the game use cookies or advertising?

The game stores your latest campaign identifier and settings in localStorage so you can continue on the same browser. Informational pages may show Google AdSense ads, which can use cookies and other identifiers. Where a consent message applies, you can consent, decline, or manage your choices and revisit Privacy and cookie settings. The gameplay screen has no web display ads. The website uses Google Analytics to understand visits and usage. Android 1.2.1 is ad-supported, with banners and occasional ads between matches. There is no in-app ad-disable option; an Ad privacy control appears when Google requires privacy choices. The privacy policy explains advertising, server saves, and request logs.

Need a walkthrough? Read how to play. Game guides. For bugs or corrections, see Contact and feedback.