ZZT Ultra 1.3, HTML 5 version.
This version of ZZT Ultra is a mostly-complete port of the AS3 version.
For this reason, not all functionality will work as expected. Specifically:
. Some layers may have shearing errors during drawing, particularly scroll interfaces. . High score support is broken. . Incomplete ZIP support. Only ZZT, SZT, and WAD files should work perfectly. . Minor rounding issues occur with some floating-point calculations. . Ability to load and save disk files is clunky due to web browser security restrictions.
If you are testing this platform from a local disk file source, you must place the browser in a special "local only" mode in order to satisfy the CORS policy. For example, for Chrome, the command-line option is "--allow-file-access-from-files".