Terms

Last updated November 3, 2026

By playing Numberforge you agree to these terms. The game is free to play.

Accounts

Accounts have no email or password: your sign-in code is the only way in. Keep it safe. If you lose it, we can't recover the account or anything on it, including bought coins.

Each device can make up to two accounts.

Pick a name that's fine for everyone to see. We may rename or remove accounts with offensive names, and remove scores that look faked.

Coins and coin packs

Coins are earned by playing the daily puzzle or bought in packs. They can only be spent on looks in the Numberforge shop (desks, calculators, tape and effects).
Coins and shop items have no cash value. They can't be exchanged for money, sold or moved to another account.
Prices are shown in US dollars. Payment is handled by Stripe.
Bought coins are kept on the account you were signed in to when you paid.
Buying any coin pack also turns off ads for that account for good.
Purchases are final once the coins are added, except where the law gives you a right to a refund. If something went wrong with a payment, contact us within 14 days and we'll make it right.
If you're under 18, ask a parent or guardian before buying.
If Numberforge ever shuts down, coins and items end with it.

Fair play

Don't fake scores, coins or results, or try to break the site. We may remove scores, coins or accounts involved in cheating. Bought coins are only removed for fraud, such as a charged-back payment.

No guarantees

Numberforge is provided as is. We try to keep it running and your progress safe, but we can't promise it will always be available or free of bugs. As far as the law allows, we aren't liable for losses from using it, and our total liability is limited to what you paid us in the last 12 months.

Contact

Questions, payment problems or account deletion: [add your contact email].

Changes

We may update these terms. The date at the top shows the latest version.