Slowly but surely, the sequel mechanics seem to be rounding into form. The initial conceptualization of something focusing on a "d6 pool" engine seems to now be pivoting into a 2d6 engine, with d6 pool features. So let me unpack all of that, a bit.
In
a previous post, I touched on the fact that TNP has 5 basic types of rolls: attacks, saves, skill checks, initiative checks, and base damage rolls. With the 2d6/d6 pool mechanics, the sequel is moving more towards combining attack rolls and damage rolls together; the quintessential idea is that you will pick 2 dice from the pool to use as your attack roll, with any remaining dice being used for damage. There might be a power attack mechanic that (for example) allows you to add dice to the pool, but requires you to use the lowest die from the pool as one of the attack dice; there might also be mechanics ("Daily" powers, as a potential example) which allow the attack dice to be counted in the damage pool as well as the attack roll -- not unlike how some of the class dice bonuses function, in TNP.
(Similarly to 5e, my intention with the sequel is to turn initiative checks into just another type of "ability check"; in the TNP ethos, it makes sense to use Agility for this purpose for a couple reasons, not the least of which being that STR and DEX are assumed to be the weapon attack attributes, while INT and CHA would of course be the spell attack attributes. This change would further simplify the number of basic roll types.)
Now, the idea has come about to replace the DC10, and it's looking like the replacement will be 2d6+mods. For one, this effectively lowers the DC to 7+mods; as mentioned in
the last post on this topic, having an attack roll of 2d6+2 vs. DC10 is functionally the same as 2d6+0 vs. DC8. By transitioning the DC to 2d6, this acknowledges the realities that the attack rolls were facing, while also allowing us to remove "ability score modifier" math from the baseline assumptions. For skills, the variability in the DC also means that we remove the issue of "only 5s and 6s matter"; this makes the 2d6/d6 pool mechanic way more viable for skills, without having to incorporate something like the two-stage roll that was
proposed before.
By de-coupling ability score math from attack math, we can actually look at expanding the range of modifiers again. I think probably what will evolve as the basic structure of the classes is that one attribute will be your damage modifier stat, and another attribute will be your "dice pool stat." So, for example, as a paladin you could have a +2 STR that adds to every melee damage roll you make, and a +3 CHA which adds dice to every Divine Smite spell/attack that you use -- or you could flip the two, if you want to trade higher burst-damage for more reliability. This has come as something of a revelation recently, and I think it'll open up the designs a lot more; ironically, by going back to the TNP ethos of not having attribute math contribute to attack math, we're actually able to do more with attribute math, and not less.
Since the baseline assumption is that an attacker will be rolling at least 3 dice, I'm leaning towards the idea of one-handed melee weapons and ranged weapons representing the 3rd dice of the attack; two-handed melee weapons would be 2d6, essentially adding a 4th die to the pool. There might be some tinkering around the edges, as to how this works; my first intuition is that two-handed weapons and unarmed attacks (i.e. straight 2d6 roll) would gain a +STR mod to damage, while one-handed/"two-weapon fighting"-type attacks could have the option to add STR or DEX -- or maybe one for the 1st attack and the other for the 2nd? (Ranged weapons might add no mod, or the lower of the 2 mods, but that might be unnecessarily fiddly.) This would still need to be balanced out against spellcasting; it might be the case that spell mods (such as INT and CHA) would simply add dice to the pool, but not damage modifiers. But that also begs the question of, which attribute modifier would spellcasters use, for push-button "Daily" powers, or similar effects?
I've floated a few ideas as to how defenses/"saves" might work, but so far I think the most compelling idea is having saves tied to effects, rather than saves tied to attributes. I think there will likely be an "Armor Class"-equivalent that is tied to class bonuses/features; having Agility tied to both AC and initiative seems overbalanced, so I'm probably going to try and avoid that. In general though, the DM can use 2d6 in a pinch to determine success or failure; skill check DCs can be nudged up or down using small modifiers, but I think the general assumption for monster "save" DCs should be an unmodified roll.
The other interesting quirk about a 2d6 baseline assumption is that it also still allows room for mechanics based around rolling "doubles" or "ties." And since 2d6 is the backbone of each type of roll (attacks, saves, checks, and opposed checks) you can have classes or other features apply different bonuses on doubles, to each type of roll -- almost akin to how 'mastery' in TNP works as sort of a universal dice modifier.
All of these things have made me very positive about the direction that things are going, with the sequel development. I think the current implementation of the d6 pool mechanic now does an adequate job of filling the design space left behind by 'class dice'. I also like that despite axing the d20, DC10, and other things from TNP designs, the ACIDS "skill grid" and the Knowledge skill/Power Source paradigm have been able to remain intact, giving a strong foundation to build upon.
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Apologies for the delay in posting; I'm hoping to cram 3 posts into what remains of May, so that we can keep on track. Check back around this time, next week!