Thanks & Credits

DoubleUp Games is a small independent studio. Our games are free to play because we can build on excellent services, fonts and tools made by others. This page says thank you to them.

We are a customer or user of the services below. Listing them does not mean they sponsor, endorse or partner with DoubleUp Games.

Hosting & game servers

• Firebase by Google hosts our websites and games, signs players in, and runs the servers that keep coins, lives and progress safe.
• Google Cloud provides the infrastructure behind our game servers, database and logs.

Payments

• Xsolla processes in-game purchases securely, so we never see or store your card details.

Advertising & analytics

• Google AdSense is the advertising service we use to help keep our games free.
• Google Analytics helps us understand how the games are played so we can make them better. See our Privacy Policy for details.

Domain

• GoDaddy is the registrar for doubleup2.com.

Fonts

• Changa One by Eduardo Tunni and Nunito by Vernon Adams, served by Google Fonts. Both are licensed under the SIL Open Font License 1.1.

Open-source software

• The Firebase JavaScript SDK, licensed under the Apache License 2.0.

Tools that help us build

• Claude by Anthropic and OpenAI models help us write code, test our games and create artwork.

Thank you

And the biggest thanks go to everyone who plays our games. If we have missed someone, or you would like a credit corrected, message us on TikTok, YouTube or Instagram.

All product names, logos and brands are the property of their respective owners. Their mention on this page is for identification and thanks only and does not imply endorsement.