Otto's Trial is a mod for registered Wolfenstein, made by Joe Monaghan. It was released on January 18, 2004.
It features 10 levels played on Episode 1 and a couple of very basic code changes.
Some of the levels are not originals, but merely lightly edited (or intact) Wolfenstein 3D levels. These include:
- Level 1 = E4L2
- Level 2 = E1L2
- Level 7 = E3L8
- Level 8 = E5L1
A unique trait to the mod is the status bar, which uses numbers in gray lettering, in the style of being chiseled in stone.