(load the game in full screen)
As of 2010-05-18, the demo adventure Catch that cat has been through one round of beta-testing, so it should play somewhat smoothly.
Version 2014-06-27 fixes three-word commands, which the parser simplification had broken. (And nobody noticed for three years. Despite people looking at the project. Go figure.)
Version 2012-12-15 fixes, simplifies and extends the parser. Now it's possible to add arbitrarily phrased commands to the parser. Also, embedding is now done via iframe.
Version 2010-04-09 fixes a long-standing (and stupid) bug in ContainerMixin.removeChild(), and the handling of intransitive verbs that was broken in the previous release.
Version 2010-04-08 fixes handling of unknown verbs and enables three-word commands.
Jaiffa works in Firefox 3.5, Opera 10, Arora 0.10 (Webkit-based), and partially in Konqueror 4 and Nokia Browser.