Using the Compatibility Mode with Mac OS X 10.4 “Tiger” or on older Macs

The Catan Online World client is basically ready to be run on older Macintosh computers with PPC processor and/or Mac OS X 10.4 “Tiger.” However, we recommend the use of a modern Intel based Mac with 64 bit processor (Core 2 Duo or newer) and Mac OS X 10.5 “Leopard” (or newer).

To run the COW client on a Mac with an older processor (Intel Core Duo or PowerPC) and/or Mac OS X 10.4, you can switch the COW client to the compatibility mode. Afterwards, the program will also run with Java 1.5.

Please click here to learn more about the compatibility mode.

Hints for Java

For operating the COW client, "Java 2 Standard Edition, version 5.0", or short: J2SE 5 or Java 1.5 is required. However, we strongly recommend the use of J2SE 6 or Java 1.6.

• J2SE 5 is available in Mac OS X 10.4 “Tiger” or later.
• J2SE 6 is available in Mac OS X 10.5 “Leopard” or later, but only on Macs with a 64Bit Intel processor (Core 2 Duo or newer).
• On a newly installed computer with Mac OS X 10.7 “Lion,” Java is no longer preinstalled. Therefore, an information message appears when first starting the COW client, prompting you to first install Java.

Please use Software Update on your Mac to ensure that you have installed the latest Java update on your computer.

Please note: If you are using Mac OS X 10.5 “Leopard”, you will need “Java Update 4” or newer due to a bug in the Java software.