STR09: Volcanic Installation (Stronghold: On the Edge of Chaos)


Stronghold maps 01-10

(01 - 10)
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 99
Secret maps: 50 52 54 56

This level occupies the map slot STR09. For other maps with a non-standard slot, see Category:Non-standard map slots.

STR09: Volcanic Installation is the ninth map of Stronghold: On the Edge of Chaos. It was designed by Joshua O'Sullivan (Dragonfly), Gianluca Cilento (Remmirath) and Daniel Gimmer (Tormentor667), and uses a custom music track.

This level uses the "Core" mode, where the objective is to prevent monsters destroying a computer core.


Map of Volcanic Installation
Letters in italics refer to marked spots on the map. Sector, thing, and linedef numbers in boldface are secrets which count toward the end-of-level tally.


As soon as the level starts, head across the bridge to collect a backpack and shotgun then go north to find the item pads, which hold ammo as well as a rocket launcher and chaingun; from here, head north to reach the core room.

Monsters will spawn from two burning caverns on the east side of the level; they will then head west until they enter the building, following three wide corridors to reach the core. If possible, destroy as many enemies as possible before they exit the burning caverns; once they emerge from the caverns they will be able to spread out. The BFG9000 is best used outdoors, while the plasma repeater works well in the corridors. Be ready to use powerups on the final wave to contain the large number of monsters

A second ammo pad can be found in the corridor north of the core, while a second health pad can be found by entering the north-east corridor from the core room then heading due east up some steps.

Wave Enemies Weapons and ammo given Armor and powerups given
1 16 zombiemen
16 shotgun guys
- Eight stimpacks
2 24 imps
20 shotgun guys
12 blood demons
10 catharsi
10 zombiemen
Two shotgun shells
Box of bullets
Plasma repeater
Four stimpacks
Four medikits
3 96 shotgun guys
64 imps
44 suicide bombers
32 catharsi
20 demons
16 nightmare demons
Eight barons of Hell
Four cybruisers
16 boxes of bullets
12 energy cell packs
10 boxes of shotgun shells
16 stimpacks
Eight medikits

Completing this level will award 800 bonus credits.

Other points of interest[edit]

A plasma rifle can be found in a cavern due north of the core. Step through the door north-east of the core, then squeeze through the holes in the left-hand wall to enter the cavern.

A super shotgun can be found at the bottom of the slope that monsters emerging from the north-east cavern will walk down.


There are no official secrets on this map.


Demo files[edit]

Areas / screenshots[edit]


As this level does not contain official secrets, the NM 100S category is redundant.

Routes and tricks[edit]

Current records[edit]

The records for the map at the Doom Speed Demo Archive are:

Run Time Player Date File Notes
UV speed
NM speed
UV max
UV -fast
UV -respawn
UV Tyson
UV pacifist

The (absence of) data was last verified in its entirety on February 21, 2022.


Map data[edit]

Things 584
Vertices 4839*
Linedefs 5912
Sidedefs 10406
Sectors 1334
* The vertex count without the effect of node building is 4839.


This level contains the following numbers of things per skill level:

Technical information[edit]

Inspiration and development[edit]


See also[edit]


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