Curling Master · by SentiuS Group
Terms of Use
Last updated: August 20, 2026
These Terms govern the use of Curling Master (the "game" or "app"), operated by SentiuS Group, CNPJ 63.600.284/0001-77, D-U-N-S® 57-532-0273 ("we"). By creating an account or using the game, you (the "user") agree to these Terms. If you do not agree, do not use the game.
1. What Curling Master is
Curling Master is a curling game for mobile devices, distributed via Google Play. It includes:
- a versus-computer mode, free and playable offline after the first sign-in;
- a random online mode, in which the system finds an opponent for you — these matches require a wager in in-game coins (section 5) and count towards the ranking (section 6);
- private matches with friends, by invite or room code;
- daily check-in and tasks, which grant in-game coins;
- an optional Pro plan with perks (section 7).
An account is required to play. After the first sign-in, the session is stored on your device and the versus-computer mode works without internet; online features require an active connection.
How the social side works: creating rooms and sending match invites to friends is a Pro plan feature. Invited players play for free — a guest never has to subscribe or pay anything to accept and play.
2. Account and registration
- You may sign in with email and password or with Google sign-in. Authentication is handled by Supabase.
- When your account is created you receive an automatically generated friend code. It is a public identifier, meant to be shared with people you want to add.
- You choose a display name, which can be seen by other players (sections 6 and 11).
- You are responsible for keeping your credentials confidential and for all activity on your account.
- Registration data must be truthful and up to date, and each person must keep a single account.
3. Minimum age
The game is intended for people aged 13 or older. If you are between 13 and 18, you must use the game with the consent of a legal guardian.
4. Online matches, matchmaking and forfeiting
- Matchmaking is handled by the system. Depending on player availability at the time, you may be paired with system-managed opponents; those matches follow the same wager, timing and ranking rules described in these Terms.
- Online matches are turn-based, and each throw has a time limit. Letting the clock run out forfeits that throw.
- Leaving a match in progress counts as a loss — by curling's own rule, whoever concedes loses. This also applies if you exit through the menu, close the app or stay away for an extended period, and it means losing the wager and taking the ranking hit, regardless of the score when you left.
- Connection drops can be recovered: when you come back, the game tries to rebuild the match from where it stopped. If the opponent wait limit has already elapsed, the match may already be over.
- We do not guarantee opponent availability, queue times or connection quality.
5. In-game coins and match wagers
Coins are a virtual item for use exclusively inside Curling Master.
A rule that does not change: coins have no monetary value, are never converted into cash, into prizes of real value or into any benefit outside the game, and are not transferable between accounts. There is no withdrawal, redemption or exchange for goods. Curling Master is not gambling nor a betting platform: no real money goes in and no value comes out.
How you get coins
- a welcome bonus when you create your account;
- daily check-in and completing tasks — all of which can be finished playing against the computer, with no need for online matches;
- wins in wagered matches.
The wager in random online mode
- Entering a random online match requires a wager: when an opponent is found, the same amount of coins is debited from both players, and the winner receives the total. If a match ends with no winner, the amount is returned to both.
- The amount is not chosen by you: the system calculates it from the skill-rating gap between the two players and shows it on screen. The more uneven the matchup, the higher the wager — for both sides.
- The debit happens at the moment of pairing, not when you join the queue: cancelling the search or finding no one costs nothing.
- Without enough balance you cannot join that queue. Everything else remains available — including versus-computer play, the daily check-in and tasks, which replenish coins at no cost.
- Private matches with friends never involve a wager, under any circumstances.
Coins and virtual items are licensed for in-game use, not sold, and create no vested right. Reward values, wager values and other economy rules may be adjusted over time to keep the game balanced (section 13).
6. Ranking and what other players see
- Random online matches count towards the ranking. Private matches with friends do not — which prevents arranged results between acquaintances.
- There is a cumulative global ranking and a weekly ranking, which restarts every Monday.
- By playing ranked matches, your display name, your flag and your rating become visible to other players in the ranking list. Your email is never shown, and your coin balance is not public. Details are in our Privacy Policy.
- We may discard results, reset ratings or remove from the ranking any account showing signs of match manipulation, multiple accounts or a modified app.
7. Pro plan and the Founders Campaign
Pro is the game's perk plan. It includes, among other things: the extended aim (full trajectory preview, curl included), the ability to create rooms and invite friends to private matches, a badge and a styled name. The set of perks may change over time.
No Pro perk changes the game's physics or grants points, coins or automatic wins: the difference is information and convenience. Non-Pro players have access to every mode, with the standard aim.
Founders Campaign. We are granting Pro free of charge to the first players who activate it in the in-game Shop — currently 50 slots. The campaign closes when the slots run out, at the end of the planned period, or by our decision at any time, whichever comes first. The granted access stays active until 30 days after the campaign closes; after that, every campaign account returns to the free plan. This is a promotional courtesy: no charge, no automatic renewal, and no right to a refund, extension or continuation. The conditions in force are always the ones displayed in the in-game Shop.
8. In-app purchases
Curling Master currently sells nothing inside the app — there is no paid subscription in force and no coin sales. When they are offered:
- in-app purchases and the subscription will be processed by Google Play (Google Play Billing), also subject to Google's terms;
- the subscription will be recurring and will renew automatically at the end of each period until cancelled;
- purchased virtual items follow section 5: they are valid only inside the game and are not redeemable for cash;
- prices may change; changes apply to subsequent periods and will be announced with reasonable notice.
9. Cancellation and refunds
Where a paid subscription exists, you manage and cancel it in your Google Play account. Cancellation stops renewal, and you keep paid access until the end of the period already paid. Refunds follow the Google Play policy and applicable law. Access granted through the Founders Campaign (section 7) is free and, as no payment is made, is not subject to refund.
10. Acceptable use
You agree not to:
- cheat, exploit bugs for unfair advantage, or use bots/automation;
- keep multiple accounts to accumulate bonuses, coins or ranking advantages;
- arrange match results with another player or manipulate matchmaking;
- use a modified app or attempt to bypass limits, authentication, purchases, the coin economy or game protections;
- reverse engineer, scrape or overload the services;
- use offensive, illegal or infringing content in online interactions;
- resell or exploit the game without authorization.
Where a violation is found, we may void results, reverse or remove improperly obtained coins, restrict features, or suspend and terminate the account.
11. Online conduct and display name
The game has no free chat: you cannot send typed text to another player. Even so, your display name is seen by other people.
- Your name passes through an automatic filter for offensive terms when saved.
- We may reset a display name that is inappropriate, offensive, or that impersonates another person or our team, and suspend repeat offenders.
- In online features (matches, friends and ranking), be respectful to other players.
12. Intellectual property
The Curling Master brand, artwork, sounds, software and the SentiuS ecosystem are owned by SentiuS Group and its licensors. We grant you a personal, limited and revocable license to use the game under these Terms.
13. Availability, evolution and balance adjustments
The game is evolving: we may modify, add or discontinue features, modes, plans or the service itself, in whole or in part, with notice where reasonable. This includes balance adjustments — reward values, wager values, ranking rules and the set of Pro perks — needed to keep the game fair and sustainable. Interruptions may occur due to maintenance or factors beyond our control.
14. Disclaimer and liability
The game is provided "as is", without warranty of uninterrupted or error-free operation. To the maximum extent permitted by law, we are not liable for indirect damages or lost profits, nor for loss of coins or progress caused by your device's connection failing. Nothing in these Terms waives rights that cannot be excluded under applicable law, including the Brazilian Consumer Protection Code.
15. Termination and account deletion
You may delete your account at any time within the app or by writing to sentiusgroup@sentius.org. Deletion is permanent and erases your coin balance, progress and ranking, with no compensation. We may suspend or terminate accounts that violate these Terms. The handling of your data after closure follows our Privacy Policy.
16. Privacy
The processing of personal data is described in the Privacy Policy, which forms part of these Terms.
17. Changes to these Terms
We may update these Terms. The date at the top indicates the current version. Continued use after material changes constitutes acceptance of the new version.
18. Governing law and venue
These Terms are governed by the laws of Brazil. The courts of the District of Juazeiro do Norte, State of Ceará are elected, except for the consumer's domicile venue where guaranteed by law.
19. Contact
Questions about these Terms: sentiusgroup@sentius.org.