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Fissure sites are an integral part of the scorchbeasts' life cycle, allowing the monsters to rapidly emerge from the tunnels they nest in and attack any creatures on the surface. These sites dot the landscape of Appalachia, gradually turning an already hostile wasteland into something even more horrific.
Inactive fissure sites
Inactive sites have no ultracite ore, Scorched, or scorchbeasts and are merely curiosities in the landscape.
- Fissure site Delta - Toxic Valley - Southeast of the crashed space station.
- Fissure site Gamma - Savage Divide - Northeast of Lake Eloise in the far south. As of 2103, this site has become inactive.
- Fissure site Theta - The Forest - Halfway between Skullbone Vantage and Relay tower HN-B1-12.
- Fissure site Kappa - The Forest - Cuts through the road southwest of Clancy Manor.
- Fissure site Tau - The Forest - Southwest of Cliffwatch.
Active fissure sites
Active fissure sites have ultracite ore and are guarded by Scorched. They spawn scorchbeasts. Falling into the bright part of an active fissure site causes immediate death and dropped loot cannot be retrieved.
Named sites are listed below. These locations have map and compass markers:
- Fissure site Alpha - Cranberry Bog - Southeast of survey camp Alpha.
- Fissure site Beta - Savage Divide - East of the Bailey family cabin in the far north.
- Fissure site Epsilon - Cranberry Bog - South of Firebase Major.
- Fissure site Lambda - The Forest - Cuts through Highway 62 just west of the junction with State Route 83A between Bleeding Kate's Grindhouse and the miners monument.
- Fissure site Omicron - The Mire - On a hill in a clearing west of Mosstown.
- Fissure site Sigma - Savage Divide - North of Hopewell Cave, west-southwest of the Pumpkin House.
- Fissure site Omega - Ash Heap - Northwest of and very close to Striker Row, south of the AMS testing site. Movement in Striker Row can prompt a scorchbeast spawn.
- Fissure site Prime - Cranberry Bog - Listed in the editor as "Fissure site Zeta". South-southeast of drop site V9, northwest of Forward Station Delta, and southwest of the glassed cavern. It is flanked by three smaller unmarked fissures. This is the location where the scorchbeast queen spawns when the area is hit with a intercontinental ballistic missile. Due to this fissure and its three neighbors, there are almost always scorchbeasts in the air south of Forward Station Delta.
Also have ultracite ore and are guarded by Scorched. Scorchbeasts spawn here and are frequently seen flying over them and in their vicinity. Unlike the named sites, they do not have maps or compass markers.
- Unmarked fissure site - Cranberry Bog - Immediately southeast of Firebase LT. The rising smoke is clearly visible from Firebase LT. Movement in the firebase can cause a scorchbeast to spawn.
- Unmarked fissure site - Cranberry Bog - Northeast of quarry X3. Scorchbeasts from here patrol the central Cranberry Bog, north of Watoga.
- Unmarked fissure site - Cranberry Bog - Northeast of drop site V9. Scorchbeasts from here patrol the southeastern Cranberry bog.
- Unmarked fissure site - Cranberry Bog - East of Forward Station Alpha. Scorchbeasts from here usually patrol between Forward Station Alpha and Drop Site G3.
- Unmarked fissure site - Cranberry Bog - North-northwest of Appalachian Antiques, just south of a monorail pylon with a monorail car at the top. The scorchbeast that spawns here frequently patrols Appalachian Antiques and other nearby locations.
- Unmarked fissure site - Cranberry Bog - Northeast of ranger lookout, southeast of creekside sundew grove. The scorchbeast from there routinely patrols those locations and the bootlegger's shack.
- Unmarked fissure site - Cranberry Bog - Next to the third monorail pylon north of pylon V-13 on the monorail line that went from there to the RobCo Research Center. The pylon is the one that has stairs to the top. Verified as a scorchbeast spawn site. Two spawned a minute or two apart.
- The names of the fissure sites do not appear in-game and are only marked as "fissure site." Their names come from the game editor.
- Within the Whitespring bunker Command Center there is an interactive map that can be used to learn the location of all active fissure sites.