Wolfenstein 3-D Kosher is a mod for shareware Wolfenstein, made by Peter Ringering. It was released on August 29, 1993.
For many years it was available as a download on countless Wolfenstein sites, often under its abbreviated title, WlfKosh.
Only the graphics have been altered. All guards are now marble balls, and all gore has been edited out. Skeletons and gibs are now differently colored smileys.
As it was only a graphics replacement, it can be played in SDL.