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- This level occupies the map slot E1M3. For other maps which occupy this slot, see Category:E1M3.
E1M3: Toxin Refinery is the third map of Classic Doom for Doom 3 designed by Steven Brown (Blaster), based off of the original E1M3 by John Romero.
Walkthrough[]
Map of E1M3
Areas / screenshots[]
Starting location
Waiting room
On the way to the blue key
Rocket launcher
Finding a secret exit
Through the blue door
Exit
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