I came across this site, JeopardyLabs. It allows you to create a customized jeopardy game template without using PowerPoint. The games you create may then be played online from anywhere in the world. They have a simple editor to assist in building your own jeopardy template too. If you are not interested in building your own, you can check out the templates created by other folks. Best of all it's Free, no registration, and no PowerPoint needed!