Nazi Alert is a mod for registered Wolfenstein, made by Maxim Zhukov. It was released on June 17, 2000.
Levels were made using the Creator tool, making for a predictable and uneven gameplay with little originality.
Many graphics were changed, mainly to underline a more recent or urban time frame; fire hydrants, vending machines, domestic-looking doors are just a few of the newly added graphics.
It is playable in SDL, containing only maps and VSWAP.