|This article is a stub. Please help the Doom Wiki by expanding it.|
Although many PWADs diverge significantly from the IWADs, and there is plenty of variation among the IWADs themselves, architecture in Doom levels often incorporates standard structures and elements. This may be due to deliberate attempts to stay true to the Doom style, or the restrictions of the Doom engine's "2.5-dimensional" level format.
- Outdoor areas
- Light sources