RPG Mechanic Round-Up #5: All D&D

Dungeons and Dragons – C’era una volta.. Il Bardo, il ...

This post will include some repeats from the previous RPG Mechanic Round-Ups, but then again, very few people read those, so I imagine it’ll all be like new! Anyway, these are all of the little notes for house rules and hacks that I have for D&D:

Simplified Hirelings

Instead of having hirelings that the PCs then try to manipulate into walking ahead to set off traps or walk into ambushes, PCs simply hire them to eliminate a single kind of challenge. For example, PCs could hire a locksmith to bypass all locks during their adventure, or a guide to ensure that they find good camp sites each night, or are able to forage food as they travel. They could even hire a trap-springer to walk into traps for them if that’s what they want. In exchange for this help from the hireling, the PCs take a percentage reduction from their XP for that adventure, or maybe just miss out on the XP they would get from disarming those traps themselves.

Druid Circle of Rust

New D&D Druid circle: Circle of Rust. Rusting grasp, shatter, etc. Focused on conquering technology and civilization. (This is something I want to put the work into later)

Mystery Monsters

When you first encounter a monster in combat, especially in an ambush, you only get two or three descriptors for the monster. Then each round, you get one more descriptor, unless you take a moment to stand back and assess the situation. Otherwise, it’s a whirl of claws and teeth and blood and panic, and you’re just not seeing details. This is only for new monsters – monsters you’ve already encountered you’ll recognize.

Get Saved

I had the idea to add save points to D&D. I’m not sure if anyone would even want this. But have the PCs go to a temple and have a priest “save” them – for a large donation of course! Then if they die, they can come back to live at the temple with maybe a little loss of the XP you earned – 10% or so.

Bleeding Wounds

When a creature takes piercing or slashing damage, they begin to bleed 1 hit point each round on their turn. This is halted if they receive any magical healing, or after combat with a DC 10 Medicine check. This rule would also lead to cool scenes like tracking your opponent overland after they flee battle and try to regroup, following the dollops of monster blood on the ground. (Or monsters doing the same to chase the PCs down) Of course, this rule will make low-level adventuring even more brutal, but that’s the point.

Effects by Damage Type

I like adding special effects for the three types of physical damage. With a called shot made at disadvantage, a bludgeoning attack can deal damage and destroy one piece of armor; a piercing attack can deal double damage; and a slashing attack can deal normal damage and sever a limb.

Damage Bonus for Melee and Missile

Sometimes higher-level combats take too long, as the characters whittle down a monster’s hit points, and sometimes a higher-level character isn’t as dangerous as they should be, apart from having more hit points. A solution I’ve always had for this problem is to simply let all characters add their level to the damage they deal with melee or missile attacks.

Level Up Your Community

This idea has come up in a few tweets and posts lately, and I was also reminded of it playing through the Thieve’s Guild storyline in Skyrim. The idea is that as the character’s level, their community also levels. This can happen automatically, as their fame spreads, or can be something they pay into with all of that spare gold they accumulate. This system could also help tie them more deeply to a community – rather than leave for a larger city that has a better magic item store, through their heroics they build up their little village until it has a great magic item store of its own.

Simplified: Hit Dice Power Everything

When you have a special ability that is only available in a particular situation, like sneak attack perhaps, or with any limited special ability, make it so that the ability is powered by hit dice instead. The player describes how the conditions are met, spends the hit die, and the ability can be used. So, for example, the player playing the rogue says how her character feints to throw the monster off-balance for a moment, spends a hit die, and rolls the extra damage dice. I haven’t worked it out yet, but I think this can be adapted for most limited-use or situational-use PC abilities.


Hit-Point Hack

Low-level D&D can be grueling in a way that isn’t fun, especially in later versions of the game that are less meant to be meat-grinders. At the same time, when high-level characters have loads of hit points, it can be more difficult to challenge them without just arbitrarily increasing monster damage. My solution for this is for characters to begin with three hit dice instead of one hit die, and for their first hit die to continue to give maximum hit points. So a 1st level fighter, for example, would have 10 hit points, plus 2d10 hit points, plus 3 times her Constitution modifier.

At the upper end, I like the idea of lower hit points at higher levels, so I would say that a character stops gaining new hit dice with level 10. At 11th level and onward, she still gets any special abilities or spells as normal, but no new hit points. Technically, with the low-level hit point hack above, she would have the same hit points at level 10 that she would normally have at level 12, so I think it balances out well.

Buy Used

Settings like Forgotten Realms and Eberron are teeming with adventuring parties, and this would have to mean that there is a hot market for used adventuring gear. This used gear has a starting price that is equal to one half what the PHB or other sourcebook lists, with the caveat that when the player-character rolls a 1 using the equipment, or a monster rolls a critical hit (if it is armor) then it is damaged and useless until the character pays to have it repaired. Used weapons break on a 1, used armor breaks on a monster’s 20, and used equipment of any other kind also breaks on a 1.

No Overnight Healing

Healing is just rolling your remaining hit dice, rather than recovering all hit points.On the one hand, this will somewhat punish characters that had to use their hit dice to heal during short rests. On the other hand, it softens the “video game” effect of healing completely overnight.

Bullseye (Random Scatter)

Roll a d8 for random directional scatter, and then another die for distance from the intended target in concentric circles like a bullseye. On the d8, 1 is north, above, or away from the DM, and 5 is south, below, or toward the DM. The second die could be feet, or squares, or even inches in the given direction.

So, for example, a mirror golem deflects a lightning bolt in a random direction. You roll a 5 on the d8, so it is deflected toward the DM on the battle mat, and you roll a 4 on a d6, meaning it extends for 4 squares in that direction, electrocuting everyone along that line.

Disarm Feat

Grappling is famously bad in RPGs. I’m not sure how many players take the Grappler feat in D&D 5E, but I’m assuming that few do. In real-world martial arts, you often have to make someone miss in order to disarm them, and I thought it would be interesting to add an effect like that to the Grappler feat. Once per round, when an opponent misses an attack against you, you can use your reaction to try to disarm them with an opposed Strength roll. If you beat your opponent by 10 or more, you can grab their weapon for yourself.

Simplified Paralysis Effects

Paralysis effects are not fun. Really, any effect where you just lose your turn is not fun, in any game. A way to fix paralysis effects like hold person is for them to simply allow a single critical hit. Basically, they hold you paralyzed until you’re shocked back into action by a damaging strike. I think that this would provide enough bang for the proverbial buck.

XP for Conditions and Disadvantages

Another way to handle conditions and disadvantages, stolen from Chronicles of Darkness. You get XP when a condition affects you adversely, and it is up to the player to choose when these conditions will come up. This means that they don’t miss the character-defining d20 roll because they’re poisoned, but at the same time are rewarded for causing their characters trouble. This idea can be expanded to disadvantages as well. It would be up to the DM how much XP to award, and also what counts as enough of a problem caused to warrant it.

Simplified Conditions

Another way to handle conditions is to have each of them impose disadvantage once and then be cleared. This is much simpler and less punitive than the RAW, but some groups would prefer that. Another possibility is for some conditions to impose disadvantage more than once if they are more severe.

Equipment and Encumbrance by Kit

I have not enjoyed, or even been very interested in, tracking encumbrance for many years now. The system I use with another game I’ve designed is to have a character simply choose a “kit” that represents their equipment. (This also represents the idea that even adventurers aren’t always in full armor lugging their worldly possessions around with them)

Some examples could be war kit, travel kit, hunting kit, town/city kit, etc. It could also be simplified to light, medium and heavy. These kits could work as ‘presets’ for equipment, as exist in a lot of video games, and could also be a way to abstract out what exactly a character is carrying. For example, hunting kit would assume the character isn’t wearing armor, since they would be focusing on stealth and mobility, whereas war kit would include all of their combat gear but none of their other gear, since no one wants to fight with a huge pack on their back.

Historical Bows

This is just a historical tweak for bow terminology in D&D beyond short versus long. A hunting bow would be smaller and more maneuverable, and would deal d6 damage (around 40-50 pounds draw). a horse bow would be heavier than a hunting bow, meant to go through armor and shoot at long range in combat, but still small enough to use from horseback, dealing d8 damage (60-100 pounds draw). A war bow would be huge and heavy, requiring years of training to learn how to draw fully, but would deal perhaps d10 damage (100+ pounds draw).

Critical Options

I like the Paizo Critial Deck(s) and having other options for critical hits. I even kind of liked the Rolemaster/MERP critical hit tables. I like having options for critical hits beyond double damage, and here are some that I like to use I my games:

  1. Automatically deal max damage (similar to double damage rolled, but more predictable)
  2. Deal normal damage and knock your opponent prone
  3. Deal normal damage and blind your opponent until your next turn
  4. Deal normal damage and disarm your opponent (weapon falls at their feet)
  5. Deal normal damage and destroy your opponent’s shield
  6. Deal normal damage and stagger your opponent, cutting their movement in half until your next turn

Automatic Downtime

I need to revisit this idea in light of Xanathar’s Guid eto Everything and how it expands downtime rules, but the idea here is for things to happen over downtime automatically, based on a character’s class and possibly background. A guild artisan slowly rises up in their guild hierarchy; a fighter builds a reputation that draws other warriors to her banner; a cleric receives donations and tithes and puts them toward building a shrine or temple in the area; and so on. Wizards slowly create scrolls; warlocks are shown occult secrets in dreams. This is to replace more complex systems that require rolling and saving up gold pieces, but on the other hand keeps the development of the characters and the world around them front and center during downtime.

Bards Rock

In D&D, there is absolutely no reason for a bard to ever play a musical instrument unless they are out of combat, or they are using some kind of artifact item. I’ve always thought that bards should get a bonus of some kind for only using an instrument and their music in combat.

I have a few ideas for this one, none of which I’ve tried in 5E, for when a bard uses a musical instrument in combat:

  1. The bard counts as two levels higher than normal, and has access to more powerful spells
  2. The bard’s spells are power potent, adding 1 or 2 to their spell attack bonus and to the DC for saves against their magic
  3. They don’t lose spell slots – they can keep casting indefinitely, or maybe they have one extra spell slot per level that can only be used when they are using their instrument in combat (since indefinite spells is pretty powerful)
  4. There is an ongoing bonus effect – an aura of courage like a paladin has, or an aura of bonus hit points for her comrades, or something similar
  5. Her other bardic inspiration dice go up one die type, so from d6 to d8 and so on


Some of these will be full posts when I have time to flesh them out and add details, but ideas are cheap. Steal and enjoy!

4 thoughts on “RPG Mechanic Round-Up #5: All D&D

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