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Questions tagged [traps]

This tag is for questions relating to devices designed primarily to unpleasantly surprise and generally damage antagonists.

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8
votes
1answer
117 views

Falling after being Knocked Prone on a Slope

I'm setting up a trap for my players. They will be entering a tunnel with a rather steep section - steep enough to require climb checks to avoid falling but not so steep it can't be counted as "...
8
votes
3answers
1k views

When performing an Investigation check to look for traps, do you activate any traps if you roll under the DC?

When performing an Investigation check to investigate traps, do you activate the traps if you roll under the DC? If you are, for instance, checking out the floor looking for pressure plates and roll ...
13
votes
2answers
309 views

At what area and distance can a character detect a trap?

At what area and distance can a character detect a trap when actively searching? And on which with passive. Hypothetically. Suppose that in front of the character is a corridor 30 squares long and 3 ...
5
votes
3answers
455 views

What skills in 5e give trap knowledge (i.e. the equivalent of Dungeoneering in 4e)?

4e had a skill called Dungeoneering which was used for recognizing hazards and knowledge of some monsters. This skill doesn't exist in 5e. Clearly Perception and Investigation can be used to find ...
11
votes
2answers
640 views

Where is the rule for moving slowly when searching for traps that’s referenced by Dungeon Delver?

I'm having trouble finding the rule for one of the bulleted items for the Dungeon Delver feat: You can search for traps while traveling at a normal pace, instead of only at a slow pace. I ...
5
votes
0answers
153 views

Dungeon with puzzle traps that force players to act as a team [closed]

I just started recently to DM a campaign (first campaign ever as DM), and I want to create a Dungeon with puzzle traps based on the concept of teamwork (much like that one SAW movie), and I have ...
20
votes
1answer
3k views

What are the options for player characters to create traps?

The ranger and rogue in my game were asking about setting traps in preparation for a battle that was coming. Another player is convinced rogues can make traps because he saw it happen in D&D ...
12
votes
4answers
835 views

If a Gelatinous Cube takes up the entire space of a Pit Trap, what happens when a creature falls into the trap but succeeds on the saving throw?

A player character falls into a 10 foot x 10 foot concealed pit trap, which is 20 feet deep. At the bottom of this pit is a gelatinous cube, which occupies all of the bottom 10 x 10 x 10 (width x ...
4
votes
0answers
123 views

I`m looking for an rpg that make traps awesome [closed]

Traps are a staple of rpg, and yet they sour any modern game really fast. Dnd doesnt handle them well with passive perception, and most player dont want to die in a stupid trap after spending an hour ...
5
votes
2answers
199 views

Are harmful glyphs created by the Symbol spell detectable and/or revealed by the Detect Magic spell?

The symbol spell describes creating a "harmful glyph" on a surface or within an object. This glyph is described as being nearly invisible, requiring an Intelligence (Investigation) check against [...
1
vote
2answers
231 views

Undead tripping an illusory pit trap--how will they react?

My PCs have cast a Silent Image over an open pit trap. There will be undead following them who will trip the trap--only, will the trap really be tripped if the illusion of the floor remains despite a ...
3
votes
2answers
180 views

Can a caster concentrate continuously for as long as the GM allows or is there a game-defined limit?

I enjoy illusion spells as they can be quite potent depending on one's creativity. I want to encourage the use of them in situations like this, but I want to be fair and follow RAW as much as possible....
6
votes
1answer
384 views

Is this Kobold Trap innovation going too far?

I still feel rather new to D&D and had to leave my group for a while. Now I feel fit enough to go back and am creating a character to return with. I have a question regarding innovating on Kobold ...
4
votes
2answers
220 views

What can be used as a one-time switch in a fantasy world? [closed]

I'm GMing a 5e Dungeons and Dragons game, set in a Forgotten Realms-like world. I want the party to enter a room and see something like a lever, that appears to be a reversible mechanism but once ...
6
votes
1answer
258 views

How should I account for traps when calculating the adventuring day budget?

I'm wondering whether a trap should be considered an encounter and how should they be rated in terms of easy/medium/hard/deadly. This is not a question about whether traps should award PCs experience,...
16
votes
4answers
3k views

Should a DM award XP for avoiding or surviving traps?

I just was reading the Lost Mine of Phandelver adventure when I noticed that page 21, section "3. Trapped Hall" says: Awarding Experience Points Divide 100 XP equally among the characters if ...
6
votes
1answer
295 views

How can we end the imprisonment spell in Gromph's Outer Sanctum in Out of the Abyss?

Warning, spoilers for Out of the Abyss below. In Out of the Abyss, on pages 206-207, there is a trapped secret door described as follows: Grin (an NPC described on page 162) is a Drow Mage and only ...
4
votes
3answers
572 views

Who gets teleported when a Glyph of Warding with Teleportation in it is triggered?

I am a player in a campaign vs campaign game (players versus players), and was trying to find a way to defend my evil wizard tower. One idea was to create an unavoidable trap to teleport players out ...
4
votes
2answers
227 views

Would a teleporter also teleport a mage hand?

I, the DM, made a trap that when touched, casts teleport on the creature or object that touched it to move them to a new area. The players suspected the trap, and experimented with objects first and ...
2
votes
2answers
300 views

Disbelieving illusions in a room full of traps

So, I would like to alter a room with Mirage Arcana. The plan is to have barbed wire and traps around the room but for the room to be seen as empty. If a player interacts with the wire or a trap they ...
9
votes
4answers
2k views

How do I correctly run this trap from Curse of Strahd [Minor Spoilers]

Here is the description for the trap: Medium-sized creatures occupy a 5 foot square; they cannot occupy the same space per PHB p.191/SRD p.92): You can move through a nonhostile creature’s space......
9
votes
3answers
1k views

Does a character need to be intentionally searching for a trap to be able to find it?

I've been trying to figure out whether a character needs to actively be looking for traps (i.e. spending a move action) in order to be able to find them or she simply gets a reactive check when she ...
4
votes
1answer
142 views

Do Trap Attack Rolls Apply Concealment?

If a mundane trap that makes an attack roll targets a creature who possesses concealment (normal or total), does the miss chance apply to the attack roll? I've ruled in the past that traps ignore ...
14
votes
1answer
1k views

Do traps deal weapon damage?

This is mostly for the sake of blade ward, and other effects, that state: You have resistance against bludgeoning, piercing, and slashing damage dealt by weapons. However, traps may include things ...
20
votes
6answers
14k views

Can any character disarm traps?

In D&D 5th edition, can any class disarm a trap, or can just the Rogue class do that?
4
votes
0answers
219 views

How can we further “gamify” pit traps? [closed]

In “old school” computer adventure games like LucasFilm Games’ Secret of Monkey Island and the Infocom series which included games like Zork, the adventures were peppered with objects that used in ...
10
votes
5answers
6k views

Searching for traps

I've never played D&D before, but my friends want to try it and I've been appointed DM. A lot I have figured out, but what I don't know how to deal with are situations similar to this: The party ...
4
votes
2answers
2k views

What happens when you try to install a hunting trap on the square of a creature?

If you move to a square adjacent to an enemy creature then attempt to install a hunting trap on the creature's square, what would happen ? 1) you can't do that, as the square is occupied and ...
1
vote
1answer
90 views

Trap that tests flight speed/skill

How can I design a series of traps that test a character's ability to fly quickly through their area? The group I am GMing for will soon be entering the (abandoned) headquarters of a former faction ...
11
votes
5answers
1k views

How to have players save against secret spells and traps

I've been thinking about a method to utilize secret threats without removing player agency. This is especially important for when a character would be forced to make a saving throw by a stealthed ...
9
votes
2answers
538 views

How overpowered would a custom Rune/Glyph of Silence be as a trap?

I was thinking of using a trap against magic users. The idea that I came up with was basically as follows: The victim walks into the trap area (a hallway with a width of Silence's area of effect (...
16
votes
4answers
5k views

What happens when a rogue tries to disarm a trap they couldn't investigate?

Let's say a rogue tries to investigate a trap, then fails. What would happen to them if they then tried to disable that trap? He doesn't understand it completely since he failed his investigation ...
1
vote
1answer
702 views

Hunting Trap used as an Improvised Melee Weapon

Recently I have been toying with a tavern brawler build for a 5e DDAL game, and was looking for a few creative ways to use the feat. Provided an action was taken to set the trap in advance, would it ...
16
votes
3answers
3k views

Do I award experience points for a trap that goes off?

In a recent session my players triggered a trap that they didn't notice; it went off and did damage to most of the party. I've done a rudimentary search through the Pathfinder SRD and couldn't find ...
20
votes
7answers
3k views

Curing trap phobia

My players have developed trap-phobia in my campaign. In a rather simple dungeon I've prepared for them (they are rather new in DnD), they constantly search for traps: ask for Perception roll when in ...
6
votes
2answers
487 views

Why is finding traps so easy at high levels?

After reading through traps a bit, I saw that finding most mundane traps requires just a Perception skill check (DC 20), which means that quite early on anyone skilled in Perception (and especially ...
13
votes
2answers
6k views

Does the Dungeon Delver feat still provide resistance to traps once they're revealed?

As far as traps go, the Dungeon Delver feat provides these benefits (PHB, p. 166, 2nd and 3rd bullets) : You have advantage on saving throws made to avoid or resist traps. You have resistance ...
4
votes
1answer
104 views

What are the CRs for diseases used in traps, and how are they calculated?

Are there guidelines for determining the CR of diseases when they're part of traps? I'm actually interested specifically in Tetanus, but the lack of a clear answer of which I'm aware leads to me to ...
11
votes
2answers
2k views

Is it always a crit when you're hit by a trap while unconscious?

Recently, my PC was brought to 0 hp by a trap—hit by three huge blades erupting from walls and ceiling—, leaving my PC unconscious in the centre of the area of effect. In a bid to rescue my PC, a ...
5
votes
1answer
187 views

Attacking a permanent image

If a player attacks a permanent image set in place as a trap to stall enemies I am assuming the image has an AC of 10+size mod as per the spell major image. If the player succeeds on their attack ...
2
votes
2answers
205 views

What are the stats and rules for a Falling Ceiling Trap?

Preparing a dungeon for my party I have read about the falling ceiling trap in different places. Even in official sources like the Dungeons of Golarion (page 42), they write about the decending ...
1
vote
1answer
328 views

How invulnerable can you make a gate door?

There exists a mighty stronghold on a bountiful greater demiplane. The only way in is through a permanent planar gate on the material plane, around which has been built a great and legendary door. ...
6
votes
2answers
557 views

Surviving Spiked Pit Traps [closed]

In terms of imagining the fiction in-game, how does a character survive being impaled by spikes in a spiked pit trap? Spiked Pit Traps are a classic dungeon trap in fantasy. Like most traps in D&...
16
votes
4answers
2k views

Does sovereign glue work underwater?

I stumbled across an incredibly vicious trap. (Seriously, whoever came up with this, they need help) In the bottom of a well contains water 20 feet deep. At the very bottom of the well, a sword ...
21
votes
2answers
4k views

What is the point of the Find Traps spell?

So you waste a 2nd level spell slot, and discover that there are traps within 120 feet of you (in the visible sector). Under what circumstances would that be of any use? I mean, for starters, you ...
10
votes
4answers
613 views

When is a trap with an automatic reset considered defeated?

Suppose that for whatever reason the trap in question is never disabled, perhaps because there is no rogue or perhaps because no one can find its moving parts due to unlucky Perception rolls. The trap ...
10
votes
3answers
3k views

Why is the Pillar of 1,000 Arrows a CR 2 trap?

Pathfinder Module: Crypt of the Everflame, pg. 15–16: Pillar of 1,000 Arrows Trap: One round after the west door is opened, the trap is sprung and the pillar begins to rotate, firing blunt arrows ...
9
votes
1answer
786 views

How do traps affect encounter design budgets?

When you're designing an encounter and you plan on traps being part of it, how do you calculate the CR of that? Does 5e take that into account some where? Or do I just ignore it and calculate the ...
1
vote
1answer
74 views

Who makes the throw for the duration of a dispel on item?

I read that a way to bypass a magical trap is by doing a dispel on it. If it succeds, it is affected like an item : If the object that you target is a magic item, you make a dispel check against ...
13
votes
3answers
912 views

How do I design traps or dungeon rooms for a party with remote manipulation abilities?

The party that I'm DMing for has access to a lot of remote manipulation abilities, such as mage hand, telekinesis, and familiars. Because they are smart characters and smart players, they have used ...