Difference between revisions of "Perception"
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| Horticulture Center lower floor, west section, north side || Hidden vent shaft || ? || secret vent shaft through wall | | Horticulture Center lower floor, west section, north side || Hidden vent shaft || ? || secret vent shaft through wall | ||
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| − | | Outside the Health Center, SE corner || Hidden hole through wall || | + | | Outside the Health Center, SE corner || Hidden hole through wall || <11 Perception || secret passage to hidden room |
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| Tower north of Health Center, 2nd floor || Hidden corpse || <11 Perception || corpse with loot | | Tower north of Health Center, 2nd floor || Hidden corpse || <11 Perception || corpse with loot | ||
Revision as of 01:10, 14 January 2020
Details
Perception determines your character's overall awareness and effectiveness with ranged weapons. It also affects your character's chance to detect hidden passages, objects or stealthed creatures and NPCs. It does not increase your vision or visible range. Perception does not directly affect your chance to hit, but rather increases your ranged weapon skills, which in turn increases your chance to hit with ranged weapons. Melee weapon hit rate is unchanged but increased with melee skill (through strength or dexterity). No items require perception to be used or equipped.
High perception score is important for characters who wish to use ranged weapons or find traps, stealthed enemies and secrets.
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Directly affected skills |
Other effects |
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Related feats
See Category:Perception feats.
- Snooping increases perception by 3 for the purposes of finding secrets.
- Increased Perception veteran feat increases it by 2.
Related items
Headwear
Adaptive Goggles (+1 Perception on equip)
Metal Helmets (-1 Perception on equip)
Aegis Sec-trooper Helmet E (-1 Perception on equip)
Praetorian Lawgiver (-1 Perception on equip)
Gas Mask (-2 Perception on equip)
Suit
Tchortist Noble Robe (-1 Perception on equip)
Tchortist Rassophore Armor (-1 Perception on equip)
Biohazard Suit (-2 Perception on equip)
Fire Proximity Suit (-2 Perception on equip)
Robe (-2 Perception on equip)
Tchortist Robe (-2 Perception on equip)
Food
Mushroom Salad (temporary +1 perception)
Junkyard Surprise (temporary random base ability effect, can only decrease Perception)
Mushroom Brew (temporary -2 perception)
Kzozel E (temporary -2 perception)
Drugs
Third Eye E (temporary +3 Perception for the purpose of finding secrets)
Bioluminous Marsh Honey E (temporary +2 Perception)
Supersoldier Drug (temporary +2 Perception)
The Juice (temporary +1 Perception)
Perception checks
Discovering secret areas is based on Perception score alone, unlike detecting traps and stealthed characters, which is based on Detection. Discovering some secrets requires prior knowledge instead of Perception score.
In addition to secrets, Underrail: Expedition expansion added visible in-world Perception checks similar to Strength, Dexterity and Agility checks.
Base game
| Location | Secret | Requirement | Details |
|---|---|---|---|
| Lower Caves, South Gate Outposts, Area South outposts, inside NW outpost (Forlornstations1.png) | Trapdoor | 6 Perception | connects the two south outposts |
| Lower Caves, South Gate Outposts, Area South outposts, inside NE outpost (Forlornstations1.png) | Trapdoor | 6 Perception | connects the two south outposts |
| Lower Caves, South Gate Outposts, Area East outpost, inside the outpost (ForlornStations4.png) | Trapdoor | 7 Perception | connects east and northwest outposts |
| Lower Caves, South Gate Outposts, Area East outpost, northeast tunnels (ForlornStations4.png) | Trapdoor | 8 Perception | connects east and northwest outposts |
| Under-passages area 1, near SGS (lup-a1.png) | Door | 7 Perception | secret room along east wall, Strange Comm Device oddity |
| Lower Underrail, GMS compound level 1 (GammaCompound1.png) | Safe | 7 Perception | secret safe in room near southwest corner |
| Lower Underrail, GMS compound level 2 (GammaCompound2.png) | Secret passage | 7 Perception | secret room along east wall, Old Data Medium oddity |
| Lower Caves, east from GMS compound level 3 (cv12.png) | Secret crawlspace | 8 Perception | leads to the back entrance of the raider base |
| Lower Caves between Mushroom Cove and Junkyard (jyt1.png) | Underwater rock bridge | 8 Perception | leads to a small island |
| Lower Caves, Siphoner Pools, northeast (jyt3.png) | Underwater rock bridge | 8 Perception | leads to the northeast corner of the cave |
| Silent Isle, southeast (si1.png) | Underwater rock bridge | 7 Perception | leads to a small island with a corpse |
| Junkyard, Security control room of Depot A east area (ojy2.png) | Secret door | 10 perception | shortcut bypassing the turrets |
| Lower Underrail area 6, Lunatic camp (lu-a6.png) | Hidden stash | 8 Perception | secret footlocker near rock pile |
| Upper Caves, south of Milton's camp (lux-a10.png) | Underwater rock bridge | 7 Perception | shortcut between the north and south bank of the river |
| Lower Caves, south of Crossroad Caves (cv2.png) | Trapdoor | 8 Perception | connects southwest and southeast corner, locked box with random psionic mentor |
| Lower Caves, south of Crossroad Caves (cv2.png) | Underwater rock bridge | 7 Perception | shortcut bypassing siphoners |
| Lower Caves, south of Camp Hathor (cv19.png) | Underwater rock bridge | 7 Perception | shortcut bypassing rathound nest |
| Lower Caves, Rathound King Lair (rkl2.png) | Door | Quest trigger | shortcut leading outside if you offer to kidnap Sarine or negotiate a truce with Camp Hathor |
| Lower Caves, Rathound King Lair, outside (cv21.png) | Door | Quest trigger | shortcut leading to the lair if you offer to kidnap Sarine or negotiate a truce with Camp Hathor |
| Lower Underrail, Abandoned Warehouse (aw1-1.png) | Secret crawlspace | 7 Perception | secret ventilation shaft section with a footlocker and a rathound |
| Rail Crossing, behind bar (rc1.png) | Secret door | 7 Perception | leads to Deacon's shop |
| Rail Crossing, Buzzer's Shop's ventilation shafts (rc_shop 3.png) | Hidden Ventilation Shaft | 7 Perception | secret ventilation shaft section with Hardware Bug |
| Lower Underrail, The warehouse from Dude's vision (lu-b4.png) | Secret crawlspace | Quest trigger | leads to the lower level of the warehouse during Dude's quest |
| Free Drones Base, east room | Trapdoor | 11 Perception | leads to the ventilation system |
| Upper Caves, north from the Hanging Rat bar (lux-c2.png) | Hidden stash | 11 Perception | secret stash inside rock pillar (not visible on the linked map) |
| Foundry, Evelyn's home (fo3.png) | Trapdoor | 10 Perception | connects Evelyn's house and bunker |
| Foundry, Evelyn's home (fo3.png) | Secret crawlspace | Quest trigger | leads to Evelyn's bunker if a male player character has a drink with her |
| Lower Underrail, cave west of Foundry (lu-b22x.png) | Hidden stash | 10 Perception | secret stash inside rock pillar |
| Core City, Drop Zone (cc15.png) | Secret door | Quest trigger or 6 Perception | leads to Bogdan's hideout, can be found with perception or by learning about it from Kupusije during Find Bogdan, or with perception after starting Sewers generator/Retrieve ICPD |
| Core City, inside one of Drop Zone buildings (cc5_1.png) | Trapdoor | 8 Perception | leads to the basement |
| Core City, north Core City Sewers (cc_s2.png) | Door | 8 Perception | leads to a secret room on the west side |
| Core City, northwest Core City Sewers (cc_s6 2.png) | Switch | Quest trigger | opens door to Acid Hunters' hideout during the Look for Cornell quest |
| Upper Underrail, east of Notus Living Block (up3x.png) | Trapdoor | 7 Perception | connects trapdoor and a Lunatic base |
| Upper Underrail, inside Panacea Lab (plb.png) | Switch | 8 Perception | opens door to the room in the northeast corner |
| Institute of Tchort, utility section, northeast corner (tch-util3.png) | Ventilation Shaft | 8 Perception | connects west wing and utility section |
| Institute of Tchort, west wing, in coil spider room (tch-ww2.png) | Ventilation Shaft | 7 Perception | connects west wing and utility section |
| Institute of Tchort, Harpocrates Station, north room (tch_met.png) | Secret crawlspace | Quest trigger | leads to the ventilation system during Track down Rassophore Nevil |
| Institute of Tchort, Upper Underrail Ventilation System (tch_mv1.png) | Secret crawlspace | 8 Perception | secret ventilation shaft section with a box |
| Institute of Tchort, Upper Underrail Ventilation System, southwest room (tch_mv1_2.png) | Secret trapdoor | 10 Perception | leads to hidden basement |
| Deep Caverns, lake, northeast bank (dc-lk.png) | Underwater rock bridge | 7 Perception | leads to a small island with hackable box |
| Deep Caverns, lake, southwest islet (dc-lk.png) | Sniper rifle | 10 Perception | reveals Black Arrow sniper rifle |
| Deep Caverns, Hollow Earth (dc-la2.png) | Secret crawlspace | 8 Perception | secret entrance to the small building on the east |
| Deep Caverns, checkpoint between Caerus and warehouses (dc-cp1.png) | Underwater rock bridge | 8 Perception | leads to the east bank of the lake |
| Deep Caverns, Warehouse Block 2, south toxic storage (dc-wh3.png) | Trapdoor | 8 Perception | leads to lower level, Electrokinetic Imprint mentor |
| Deep Caverns, Caerus Residential, northwest building, second floor (dc-res2 2.png) | Ventilation Shaft | 10 Perception | leads to a cavern with Gunter Vasilica, Pseudo-spatial Projection mentor, and Regenerative Mixture |
| Deep Caverns, Caerus Residential, west apartment (dc-res3.png) | Safe | 6 Perception | secret (empty) safe |
| Deep Caverns, Arke Power Station, utility section toxic storage (dc-pp_ut.png) | Trapdoor | 11 Perception | connects toxic storage and storage room, random psionic mentor |
| Deep Caverns, Arke Power Station, utility section storage room (dc-pp_ut.png) | Trapdoor | 10 Perception | connects toxic storage and storage room, random psionic mentor |
| Deep Caverns, Deep Mushroom Forest (dc-fs4.png) | Secret tunnel | 9 Perception | leads to the northwest corner and a skeleton |
Expedition
- This list is incomplete; you can help by expanding it.
| Location, Underrail | Secret | Requirement | Details |
|---|---|---|---|
| The Rig, room #2 | Paper note | ? | under the bed |
| Chancer's Bay, NE map | Hole through wall of shack | ? | biohazard boots, mutants |
| Isaac's River, northernmost map | Hidden stash | ? | stash in north wall of cave |
| Empty room next to Ray's shop, Core City docks | Vent in north wall | ? | leads into Ray's shop, dying burglar |
| Dude's old house in Core City | Cracked floor panel/wall safe | ? | key to wall safe/the safe itself |
| Dude's cave house | Footlocker under bed | ? | psionic mentor |
| Grey Army Base, 2nd floor | Wall safe | ? | secret safe in north wall of northwest room |
| Location, Black Sea | Secret | Requirement | Details |
| Map E4, north side of island | Entrance to cave | 11 Perception | entrance to pirate prison sewer, boss hermit crab |
| Siphoner Caves | Underwater rock bridge | ? | leads to a lingula plant and a random treasure "crevice" |
| Siphoner Caves, west chamber | Buried box | 11 Perception | SGS credits, Charons, UN dollars |
| Hopper island cave, north wall, west side | Hidden stash | 11 Perception | secret stash in cave wall |
| Mutie island, crane room | Hidden vent shaft | ? | secret vent shaft through wall into crane room |
| Mutie island, lvl 4 by elevator | Hidden vent shaft | ? | secret vent shaft to blocked room |
| Horticulture Center lower floor, west section, north side | Hidden vent shaft | ? | secret vent shaft through wall |
| Outside the Health Center, SE corner | Hidden hole through wall | <11 Perception | secret passage to hidden room |
| Tower north of Health Center, 2nd floor | Hidden corpse | <11 Perception | corpse with loot |
| Nexus of Technology, level 1, SE room | Hidden wall safe | <11 Perception | loot |
| Port Crag, east building | Hidden pipe tunnel | ? | Crawl through to west building, 2nd floor (agility 8?; it is from the other direction) |
| Fetid marsh, east side of K5/west side of L5 | Hidden map exit(s) | ? | secret camp with oddity and a tablet |
| Fetid marsh, SW corner of K4 | Hidden pool jumps | ? | secret platforms for easier jumping across pool |
| Map M7, NW corner | Hidden passages | >11 Perception | secret passages to/from hidden room, shortcut past creepers |
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