About Koops

A small game with meaningful decisions

Every player begins with four hidden cards and only a brief look at two of them. From there, memory matters. Players draw, replace, discard, match, and use power cards to reduce the value of their hand. Calling Koops can end the round—but calling too early can hand the win to someone else.

The game is designed to be understandable in a few minutes while leaving room for bluffing, observation, timing, and different strategies. Koops supports guest play, optional Google sign-in, cloud progress, virtual coins, private room codes, online matchmaking, and computer opponents.

Independent operation

Koops is an independent project operated by an individual, not a registered company. The project is developed and maintained with the aim of offering an accessible, social card-game experience on the web and, in the future, native mobile platforms.

Advertising and optional rewarded ads may help cover hosting, development, maintenance, and service costs. Watching a rewarded ad is optional, and an offer will state the in-game coin reward before an ad is shown.

Contact and support

Use the address below for gameplay support, technical problems, feedback, privacy requests, or account-deletion requests. Please include enough detail to identify the problem, but do not send passwords, payment credentials, government identification, or other unnecessary sensitive information.

For account or privacy requests, email from the address connected to your Koops sign-in when possible. We may ask for reasonable verification before changing or deleting cloud data.

Before contacting support

• Refresh the page and confirm that your connection is stable.
• For installed-app issues, close and reopen Koops to load the latest version.
• Include your device type, browser, approximate time of the problem, and what you expected to happen.
• Do not publish private room codes or account information in public forums.

For rules and gameplay questions, start with the Game Guide. For data practices and service rules, read Privacy & Terms.