Designing challenging and engaging situations in which player characters come into contact (and often conflict with) NPCs, monsters, or other potential opponents.

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3
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3answers
165 views

How much higher can I make a enemy boss than the party?

I'm looking to introduce an recurring enemy in my new 4e/Ultramodern4 campaign that's an on-going, ruthless opponent. I want this specific opponent to be an exception of the normal 4e pattern of all ...
4
votes
1answer
140 views

Confused about how CL is calculated for multiple and single enemies

New GM here and I'm not quite sure how CL is calculated. So, the CL of an encounter (involving multiple enemies) is suppose to be the combined CL of all enemies/3. But that doesn't make sense. That ...
10
votes
5answers
548 views

What would be the CR of a battle where PCs have to fight their duplicates?

Imagine a situation where PCs meet some magical, evil duplicates of themselves. The duplicates are exact copies of the PCs (stats, equipment, spells, feats and so on). Therefore, I suppose that the ...
14
votes
4answers
322 views

Should I adjust encounter challenge for PCs with damage immunities?

Recently, two of my PCs became afflicted with lycanthropy (of the wererat variety). According to the Monster Manual, characters with lycanthropy acquire the damage immunities of their respective ...
7
votes
2answers
258 views

How do the PCs' magic items factor into challenge ratings?

Everyone knows that a CR 10 monster is meant to be a perfectly balanced challenge for a party of four 10th level PCs. But does that mean it's balanced for a party of four PCs with no magically ...
2
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1answer
100 views

How well are low level PCs able to defeat high level NPCs in B/X D&D?

For a Basic/Expert game, I want to populate the campaign area with important and influential NPCs, who are doing their things independent of the player's activities. The goal is to have the players ...
14
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3answers
1k views

Do different monsters cooperate? Do I need to justify it when they do?

I'm new to GMing, and am having difficulty with understanding how often different types of monsters interact cooperatively (so to speak). In keeping with trying to give my PC's variety, and to also ...
7
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1answer
157 views

How do I structure an in-game tournament to rank the participating parties of adventurers?

As part of my existing Pathfinder campaign, I want to run an in-game tournament between twelve adventuring parties. The PCs would form one team. The other 11 are NPC teams put forward by NPC nobles. ...
2
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0answers
128 views

How do I appropriatly stock this dungeon to make it challenging but not impossible? [closed]

I'm a new DM. I built a dungeon for my players' second set of encounters. They will need to clear it in order to gain knowledge from a Copper Dragon (a passive ally) at the end. We are using ...
5
votes
1answer
169 views

Help me with my battlefield design [closed]

Setup One of my weaknesses as a DM is probably battlefield design. I often forget about this completely, and have to make up a map on the spot when we roll initiative. I try to avoid this before ...
6
votes
2answers
230 views

Is this DnD4E fight level appropriate?

Yesterday we had a DnD4e session to kill the final boss of a, now in total, 4 session dungeon. This fight took us 7 hours (irl). The boss had an AoE ability that would shoot a fireball for 1d100 ...
2
votes
3answers
275 views

Experience point calculation for encounters

I am likely missing something very obvious but I cannot find a reliable way to figure out how much XP to give my players for encounters anywhere, currently I'm using a factor of 5 encounters of a ...
2
votes
2answers
197 views

How to decide if traps in OSR play should be obvious? [closed]

Obvious traps emphasize interaction with the traps, which is often interesting. Hidden traps make unexplored regions of a dungeon far more dangerous and reward careful play and cunning, as players ...
9
votes
3answers
294 views

Train chase sequence

In my next session, I want my players to have a chase sequence followed by a battle on board a moving train. They'll be chasing Githyanki, so their mage hand, jump, and misty step spells will all ...
39
votes
5answers
2k views

How do I make engaging Man vs Wild encounters that aren't excercises in rolling dice?

I like wilderness adventures. My earliest games as a player (in AD&D 2e) featured wilderness adventures, and I really enjoyed them. I try to use them in my games (We're playing Pathfinder right ...
6
votes
2answers
202 views

How much does Petrification Ray modify a monster's CR?

I'm working on a custom monster right now and I want to give it a Petrification Ray, as seen on the Beholder, as an action: Petrification Ray. The targeted creature must make a DC (8+Spellcasting ...
3
votes
2answers
190 views

How to modify a bulette to challenge a level 10 party?

In my campaign, the PCs have been tasked with removing a group of bulettes from a mining claim. I plan on using standard bulettes as a lead-up to a 'boss fight' where I would like a larger (perhaps cr ...
3
votes
3answers
265 views

How do I calculate a suitable combat encounter under 5e based on the CR values in the Monster Manual?

In my 3rd ed book, there is a table of CR against the number of monsters a party can fight based on their level. In 5e I cannot find this table. There is some mention of encounters being based on the ...
22
votes
3answers
4k views

My PCs are too strong for a published adventure. How can I fix the content so it isn't trivial?

This is my first time DMing a D&D game and I'm learning as I go. I'm running Tyranny of Dragons, and here's my situation: Through a series of lucky events and other phenomena, the party is one ...
21
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2answers
555 views

Tarrasque: Rush & Jump Skill Interaction

Background I am having a little trouble wrapping my brain around the Jump skill. I want to plan a battle with my players and the Tarrasque; two of them have the ability to fly - and it does not. I ...
16
votes
5answers
2k views

How can I create reasonably challenging encounters for large groups?

I'm running a 5e campaign that has become quite successful to the point that everyone wants in and I have 6-8 players at my table every other week. It's awesome, but I'm having troubles with creating ...
4
votes
1answer
171 views

Can an animated cannon fire itself?

In Pathfinder I am currently trying to design a few encounters with a supposed ghost ship (actually a Colossal Animated Object) complete with a crew of Haunted Objects (again, Animated Objects), but I ...
2
votes
1answer
327 views

How would removing tail spikes from a manticore affect its challenge rating?

One creature omitted from the 5th Edition MM is the Dragonne, and I have considered modifying stats for the manticore to create a 5E dragonne. Most of the changes would be cosmetic except for removing ...
11
votes
4answers
1k views

Can players handle Deadly encounters if they don't engage in any other danger?

The DMG suggests that Player Characters are generally going to be able to handle about 6 encounters between long rests; the difficulty comes from the cumulative strain of multiple consecutive ...
5
votes
2answers
253 views

How do I handle the encounter difficulty for a three-sided battle?

I'm running my first real campaign. The idea I have for the first dungeon involves the PCs coming upon two sides already engaged in combat. One side is losing and weaker than the other, though not in ...
5
votes
5answers
302 views

Balancing undead encounters against large party with a cleric

I'm a new DM (and a relatively new player as well) and I'm leading a pretty large (6 players) group of newbies. We've done a few demos and whatnot just to show them the basics of combat, but now we're ...
2
votes
0answers
163 views

Designing a low-level NPC mage [closed]

So, I am working on a dungeon for a small party: (Tweaked) Drow Sorc2 -- good stats and a decent spell selection Human Rgr2 -- has a bit of healing, but more of a tanky/hack-and-slash type so far ...
2
votes
1answer
239 views

How do I calculate encounter difficulty for PCs with allied monsters? [duplicate]

I'm currently running a mega dungeon in 5e D&D, and my players have recruited some monsters into their service. I have been building encounters using the dungeon masters guide rules (pg. 81-84), ...
5
votes
1answer
329 views

How do I calculate the CR of a monster that spends their turns healing?

My question is about magic and monster CR. I was building a CR 10 Cleric with capabilities of healing himself and others, but I don't see any rules about calculating CR for a monster that expends his ...
3
votes
3answers
499 views

How to make a low CR villain more dangerous

My PC's in one campaign are currently traveling to their first major town and, unbeknownst to them, there is a Rakshasa, disguised as the town mayor, using the town to feed and kill as he pleases ...
0
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0answers
34 views

What is an appropriate encounter in Deathwatch [duplicate]

I am wondering how to judge what kind of encounter will be right for my group. I would like to design challenging encounters, but not ones which will be impossible or far too easy. How will I know if ...
3
votes
1answer
197 views

How can I boost the AC of a ghost dragon?

I am in the process of making a ghost dragon as a challenge for a mythic campaign, with a party of a druid, an alchemist, and a paladin. Applying the ghost template drastically reduces its AC from ...
4
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0answers
92 views

How do you judge the difficulty of an encounter in Strands of Fate?

I recently found Strands of Fate and it looks like a really fun system; so, naturally, I want to run a short campaign in it to try it out. Unfortunately, the book doesn't seem to give any tips for how ...
2
votes
1answer
147 views

How to set up a Castle Siege? [closed]

I am running a war, for my players. They have won a battle pushing their opponent back into a citadel within the cliffs. I am looking for stories, suggestions, or more importantly rules on how to ...
3
votes
2answers
210 views

How to make and set up Army scale battles

I am nearing the climax of a nearly year and a half story, and before the final boss I wanted to have a massive army scale battle. This is a 3.5 game, the armies will be mostly using martial weapons, ...
10
votes
3answers
500 views

How can I avoid making extended/prolonged encounters boring?

I have run this campaign for just over a year. Many encounters later, I have come to one snag; If I run an encounter that lasts for more than a few rounds, I lose all my flair. I just resort to "hit" ...
7
votes
1answer
347 views

How can I make a CR 4 monster based on a player class (e.g. Sorcerer)?

I'd like to create a villain that can take on a party of level 4 characters all by herself. In other words, if she were a standard monster, she would have a Challenge Rating of 4. What's the right ...
10
votes
2answers
1k views

Would an Ettin and Otyugh live in the same area?

According to the 3.5 monster manual - Ettins like to establish their lairs in remote, rocky areas. They dwell in dark, underground caves that stink of decaying food and offal. They tolerate ...
0
votes
1answer
212 views

How do I calculate APL and CR for mythic PCs and enemies?

I'm GMing a Pathfinder campaign and some players have mythic tiers. They seem really powerful to me? As far as I can tell, even adjusting CR for mythic tiers, their power makes the CR system even more ...
4
votes
1answer
307 views

designing encounters for a tournament with set rules

I am running an in-game tournament. The qualifiers are pit fights with the last two standing going through. Hopefully all of the party will qualify so it seems like I'm not doing endless pit fights ...
17
votes
9answers
3k views

Should encounters be adjusted to a full-magic party?

I am still a new GM and I am building a session for 3 first-time players. After discussing the game, rules and setting, all of them are interested in playing magic characters (Draconic Sorcerer, Druid ...
2
votes
0answers
233 views

How do I determine how many encounters a dungeon should contain? [closed]

It's come to the point in our game where the party is going to enter the first major dungeon. They started higher level, around level 8, and we have a variable of 5-8 players. The last 3 coming depend ...
6
votes
1answer
156 views

How can I deal faster with enemy actions on large-scale battles?

I returned to Savage Worlds after a while of playing 5th Edition and Anima, and I'm falling in love with the system again. I finally understood how the system goes better with many characters ...
1
vote
3answers
578 views

Scaling a game for a large group

I have read this Question and while it gave helpful advice it is not the problem I am having. I have 6 players and an observer. They understand they need to have their turns sorted in combat and ...
2
votes
2answers
175 views

How do you alter encounter difficulty in regards to decreased party size?

Encounters are usually written in advance and balanced against the makeup and the abilities of the party. Sometimes though the party makeup when writing such an encounter in advance and when actully ...
6
votes
1answer
323 views

How do I adjust Part 8 of The Traveller Campaign for more powerful characters?

I've just gotten to Adventure 8 in The Traveller Campaign and I have a problem: the characters are far too powerful for the adventure. The main problem is that The Privateer Fleet that the characters ...
2
votes
1answer
72 views

Different numbers of PCs to the adventure spec

I'm about to start Keep on the Shadowfell with a party of seven friends (beginners) but the adventure spec says the encounters are built for five PCs. Is there a particular method for changing the ...
8
votes
1answer
436 views

How far below the average CR should I count monsters when determining encounter difficulty?

DMG82 says "When [calculating encounter difficulty multipliers], don't count any monsters whose challenge rating is significantly below the average challenge rating of the other monsters in the group."...
4
votes
3answers
728 views

How to Run a Trial Based on Skills? [closed]

So I will be putting my group through a final exam in their knight training. I wanted to have each trial in the exam based off of one of the six Dungeons and Dragons attributes. I figured that ...
26
votes
10answers
3k views

Should I scale the difficulty after the party recruits a boss?

A year ago or so, I was DMing a DnD4e campaign in which the leader of the players' party (Sariel) managed to convince a powerful (6 levels higher) adversary (Pieter) to join them temporarily; their ...