From Ren'Py

Ren'Py 5.5.4 "Engine X"

Ren'Py 5.5.4 "Engine X" was released on August 7, 2006. It comes with a demo game intended to show off some of the features of the engine. This demo game was last updated in version 5.5.4.

• Download the release, including source and Windows binaries. (3.4 MiB)
• View the Ren'Py reference manual.
• View the script of the demo. (colored)
• View the changelog.
• Requires Ren'Py Launcher for Macintosh 5.5.4 or later to run on Mac OS X.
• Requires py4renpy 5.5.4 or later to run on Linux.