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About this mod

This is a perk/trait pack inspired by Disco Elysium, and its thought cabinet in particular.
It features many new perks and traits, and a brand new "flaw" system.

Requirements
Permissions and credits
Changelogs
Overview:
This is a perk pack inspired by Disco Elysium, and its thought cabinet in particular.
If you like RPGs and haven't played Disco Elysium yet, you should. I consider it to be one of the best games ever made, and it's such a breath of fresh air with the state of the video game industry right now.

TRIGGER WARNING
Disco Elysium pulls no punches when dealing with the notions of self-abuse, self-destructive behavior, thoughts, ideation, or suicidal-ideation. A handful of the content items in this mod involve that aesthetic. Those who are sensitive to the portrayal of those ideas may find some of the content herein to be unpleasant.
Please note that I am not giving this warning for the intention of disparaging people who have difficulty with the portrayal of such things, and I hope that my phrasing does not come across that way.

Features:
If you're not familiar with Disco Elysium and its thought cabinet, here's an overview:
Spoiler:  
Show
In DE, by coming across a certain item, saying enough dialog options of a particular flavor, or learning about a revelatory new piece of information, the player is presented with the option to "internalize" a thought, which grants stat changes during the period of time when it is internalizing. Some of these stat changes are buffs, some are debuffs. To completely internalize a skill, you must select it for inclusion in your "thought cabinet", which has limited slots, then gain enough xp while the thought is active to complete its internalization. Upon doing so, the player is presented with the "answer" to the thought, which generally provides a substantial benefit or buff of some kind. Some of these thoughts have conclusions, which function the same way, providing another function once the player has hit an additional xp threshold after the thought is internalized.

The thought cabinet vernacular is a little different than traditional perk text; It consists of some flavor text, followed by a couple lines detailing each effect and making a comment about them one way or another. That format will be maintained here, as I feel it's a great place for writing and tone to shine.

Some available perks will *debuff* you for a period of time, until you can choose to internalize a thought's "answer" or discard the perk entirely.

Capitalist and Bankrupt are included, and they are the only political/economic thoughts will be included here, and any discussion of politics or economics in the posts will be promptly removed. I don't want this to be the place for that, and I don't want to moderate discussions on that topic.

Flaws:
Flaws are a new kind of "perk" that debuffs you, but grants you the chance to take a new perk right away, or as soon as you're level 2.
Some flaws are granted by challenge or special criteria, and some are selected as traits at the start of the game. When provided by a challenge, you can choose to reject the perk, instead of internalizing it.

Addictive Personality
You just can't get enough of the hard stuff, that grimy stuff, that junk that hits your veins and makes your heart scream! You have 3x the normal addiction chance.
However, your extended consumption of chemicals has shown you something new about life in the wasteland.
Prompted by completing the Day Tripper challenge*.

Ambitious (Trait)
You just can't wait to be at the top of the wasteland food chain. You suffer a reduction to skill points, which decreases as your level increases.On the upside, you know exactly how you'll get to that position that you so deserve.

Bottomless Stomach
Where does the food go? Nobody knows, not even you! Your hunger rate is doubled, but your strange proclivity has allowed you to develop in a new way.
Prompted by Wasteland (Desert) Survivalist*.

Clumsy (Trait)
Req: AGI < 3
It's shocking that you don't break all the bottles you pick up; you seem to break everything else. Sneaking is very ineffective for you, but you've learned other ways to handle your problems than subtlety.

Congenital Heart Defect
You suffer from a heart condition that causes you to take constant health and chest damage during the entire duration of Buffout, Slasher, Psycho, Turbo, Rebound, Steady, Super Stimpaks, Hydra, or Party Time Mentats.However, suffering from this adversity has taught you a thing or two.Prompted by Tough Guy*.

Delicate (Trait)
Req: END < 3
You've never been much good in a fight, you always seem to hit the mat before your opponent does. You've lost -50% max health, but you've learned about the more subtle ways of life.  (You will be able to select another perk immediately.)
When you take this perk, your permanent health pool will be reduced by 50% immediately. This means that if you start at level 1 with 50 max health, your health will be reduced by 25 - but all future health changes are unaffected. If you gain +25 health from leveling up, another perk, etc., those bonuses will take full effect. The -50% health is a one time penalty, not an ongoing modifier - this is due to the lack of a perk entry point that directly affects max health.

Fickle (Trait)
Req: Luck > 3
Fortune favors the bold; you favor indecision. You suffer -3 Luck, but your lack of decisiveness has allowed you to cultivate a characteristic that suits you better.

Hemophiliac (Trait)
Req: END < 5
You have a condition that prohibits proper blood clotting; you have a chance to suffer damage anytime your health is below 90%. However, this difficulty has shown you one of your other latent talents.

Homesick
You've come a long way, and experienced some serious head trauma. Your heart longs for the familar comforts and dangers of the Capital Wasteland. Your addiction chance and limb damage are increased by 25% anytime you're not in the Capital Wasteland or its surrounding territories.
This flaw is only prompted for TTW players.

Lazy (Trait)
Req: STR > 2
You just don't wanna move your muscles. Just make everyone else pick up the slack, they do it anyway! You have -10% run speed and carry weight, but your free time and unspent calories have allowed you to excel somewhere more suited to you.

Legally Blind (Trait)
Req: PER > 2
If a driving test were part of the GOAT, they'd have kicked you out of the vault! Selecting Legally Blind will ensure that your Perception never increases past 2, but your other finely honed senses have allowed you to excel in another area.

Narcoleptic (Trait)
You have trouble staying awake for even moderate periods of time. You will randomly pass out for a moment or two. Hope it's not at a bad time! Fortunately, your unique trait has helped you understand more about yourself.

Paranoid
Req: INT > 3
You're so obsessed with what's going on behind the scenes that it often hinders your critical thought about what's right in front of you. You've lost -2 Intelligence.
However, you were on to something with your suspicions.

Philistine (Trait)
Req: PER < 6, INT < 5
You figured out your best tool for interacting with the world early, but now learning new things makes you uncomfortable, and you find yourself always relying on familiar ideas.-10 Energy Weapons and Science-x2 EW AP cost-5 Medicine-20% reduced XP gain

Possessed (Trait)
The spirits walk with you, guiding you in unforeseeable ways.You randomly gain and lose small stat bonuses and penalties, but the guidance of the spirits has taught you how to perservere in the wasteland.

Rude
Req: CHA < 3
You're just absolutely intolerable. At every opportunity, you insult and demean people. Your Speech and Barter skills suffer intense penalties, which increase as each skill increases, but your selfish attitude has shown you a new way to approach life in the wasteland.

Human Sieve
Water runs through you like a river into the sea. Your thirst rate has been doubled, but your thirst has led you to a new conclusion.
Prompted by ...And Not A Drop To Drink.

Sluggish (Trait)
Req: AGI < 5
You're moving as fast as you can, but everyone else just seems to be able to do more than you. You suffer +10% AP costs and -20% AP regen speeds, but your sloth-like persistence has shown you a new strength within yourself.

Stubborn
You're too dumb to give any ground in a negotiation, or even try to see from the other person's perspective. Your Barter and Speech have been reduced by 20, but your persistence rewards you in other ways.
Prompted by Know When To Fold 'Em.

Tragic Survivor
One by one, those that walk by your side seem to fall. Try as you might, you have failed to save two souls who shared your stride; if more are drawn to you and take up arms in your name, surely they shall fall as well. (-2 Luck while you have any companion.)However, their sacrifice has shown you a new truth of life in the wastes.
Prompted once you have two companions die while in your service. Instances where companions turn on you and you must kill them don't count.
Obviously, this requires that you either do the in game events where companions are killed, or have any mod installed that either makes companions not essential, or adds a companion that's never essential in the first place.
Mod added companions: add the companion's base form to FLSTCompanions.


Weak Knees (Trait)
Req: AGI < 5, END < 5
All that crouch-walking is murder on your joints. You suffer -10% sneak speed, and take leg damage anytime you run while sneaking. Fortunately, you've learned from your disadvantage.

Nightkinship
Use five Stealth Boys, and you'll be prompted by Nightkinship. Accept, and one SPECIAL stat will receive a +1, and one will suffer -1, permanently. Only stats which are 9 or lower can be increased. Use ten more stealth boys, and you'll gain a perk point.
Only stealth boys used after installing V10+ will count.

*(Must not have completed challenge before installing Elysium)

Thoughts:
Thoughts are prompts that occur at certain triggers, which offer you a chance to achieve a reward for completing its objective.

Fall From Grace and Redemption Arc occur when you reach Very Good or Very Evil karma, respectively, and have less than 10% health. You can only perform one of these tasks; whichever you fulfill will grant you a perk of your choice. Fall From Grace requires that you reach maximum evil karma, Redemption Arc requires the opposite. Perks/events which modify your karma will help you achieve these tasks; this is intended.

Perks:
Credit to ItsMeJesusHChrist of Consistent Pip Boy Icons for the excellent upscaled source icons that I used in composing the new ones. New perk icons are 512 x 512, just like CPI. If used without CPI, the images will look different and higher res. I will not be downscaling the icons for vanilla resolutions. Downscale 'em yourself if you want, you can do whatever you want with the image icons, just credit me please.

Who Killed The World? (Trait)
It wasn't the animals; it wasn't the robots; You know who killed the world.
+10% damage against humans
-15% damage to non-humans
--Super mutants count as humans for the sake of this perk.

Capitalist (Trait)
Req: Luck 6+, Barter tagged
You know how to make your money worth its weight. For each 1000 caps you hold above 3000, you have increasingly reduced purchase prices, up to a maximum of -17%. However, while you have less than 3000 caps, your buy price is increased.

What Are You, Stupid? (Trait)
Req: INT 6+, PER 8+
You're so smart. Nobody has ever been smarter than you. Literally the pinnacle of humanity right here.
+Crit chance against targets stupider than you.
-Crit chance against targets smarter than you.

Bad Influence (Trait)
Req: CHA < 5, INT < 7, Evil or Very Evil
You really bring out people's vulnerabilities when you're intoxicated. When you're drunk and rolling with at least one companion, your chems and meds last 20% longer, but you deal double damage to any teammates that wander into your line of fire.

Patriot (Trait)
Req: INT < 6
Echoing through the desolate wastelands, the voice of true authority still speaks.
-Damage against Enclave.
+Charisma bonus while Intelligence is below 4.

I Don't Believe In Luck (Trait)
You've always been beset by "misfortune"; good thing you don't believe in Luck.
-Crit chance has been reduced to 0.

Card Counter (Requires I Don't Believe In Luck)
Req: Level 12, PER 7+, INT 6+, I Don't Believe In Luck
All it takes is a keen eye and the discretion to not call attention to yourself.
+Better results while gambling
This is performed by granting you a 5 point bonus in luck. If your game increases skills based on luck, like default, there is a skill debuff on all skills to even out the luck bonus.

Architect (Trait)
Look at all those glorious buildings, left to ruin and decay, buried in the dessicated husk of humanity.
+2 Perception while indoors.
-2 Perception while outdoors.

Blood Bag
Req: Level 2, END 7+, Survival 25+
You're a universal donor! Not that you'd ever give any of it away.
+5 Survival and +8 Medicine while holding more than 8 blood bags.

The Game Was Rigged From The Start (Trait)
Your 18 karat run of bad luck isn't quite over. You still have that asshole in the flashy suit to contend with.
+Enemies gain +50% crit chance.
-This perk is granted by a message box pop up during vegas character gen, based on which option you choose.
-TTW users: You must be in Vegas for this trait to be acquired.

You're Holding All The Cards (Requires The Game Was Rigged From The Start)
Req: The Game Was Rigged From The Start, Have the Platinum Chip
But now the chips have come in, and you're a winner! You retrieved the Platinum Chip and took back your own destiny.
+50% crit chance.
-You can select whether this perk is granted automatically if you've killed Benny and have the platinum chip in your inventory, or if you must select it in the perk menu when you level up once you have the platinum chip in your inventory.

Prohibition
Req: Level 2, INT < 8, PER < 9
They're still out there. Looking for booze... Your booze. Well, the only way they'll take it is from your cold, dead hands!
Your human enemies gain +20% crit chance while you hold any alcoholic drinks, but you gain +5 Sneak/+1 Perception/+5 Sneak and +1 Luck while you hold 4/8/12 alcoholic drinks.

Doom Spiral (Trait)
Req: INT < 7, PER < 7
Oh no! This is the start of it all! The final collapse!-Increasing penalties as your health gets lower. This may be fatal!
-<90% -1 Luck
-<80% -30 AP
-<70% -20 Carry Weight
-<60% -1 END
-<50% -1 PER
-<40% -1 STR
-<30% -1 END
-<20% -1 AGI
-<10% -10 HP
+All chem duration is increased by 40%.

Physical Instrument (Trait)
Req: END 7+, STR 8+
You solve your problems with the most reliable tool; your own flesh. Things will be easier to straighten out once everyone else is unconscious or dead.-Carry weight is reduced by 40%.+2 Strength.

Masochist (Trait)
Req: STR 6+, END 7+
When you're feeling healthy, all you can think about is when you'll get to bleed again.
While your health is above 50%:
-35% AP regen speed.
-1 Endurance
While your health is below 50%:
+2 Agility and 40 AP.
+35% AP regen speed.

Desert Rose (Trait)
Req: END 4+, AGI 4+, CHA 6+
You're a beautiful soul, in a desolate place.
-1 Endurance.
+1 Charisma while your health is above 50%.

Empath (Trait)
Req: END 4+, AGI 4+, CHA 6+
Your tender heart and care for others makes it difficult for you to hurt other living things.
+1 Charisma
-10% less damage to living beings with ranged weapons
-20% less damage with Melee or Unarmed weapons
-An additional -20% damage when your target is lower than 50% health.

Bankrupt
Req: Luck < 4, Barter tagged
People go easy on you when you're broke. Maybe it's manipulation, or maybe they just feel bad for you. Your buying prices are reduced substantially while you have low amounts of money, but once your bag of caps begins to refill, they start to expect you to pay more and more, in return for their previous generosity,

Boiadero
Req: Level 10, CHA 5+, Survival 35+, END 3+
Smoking, Courier. It will take a lot of tobacco-smoking for you to become a *boiadeiro*.
In these wild, uncultured times, with a gun in one hand and two lit, unfiltered cigarettes in the other, you make your own rules.
+5 Crit Chance while holding 10+ individual cigarettes.
+5 Speech while holding 8+ cigarette packs.
+1 Charisma while holding 5+ cigarette cartons.

Law-Jaw
Req: Guns 45+, INT < 5, Shot by Benny
Every time you say “I am the law“ - and you say it *a lot*, it's basically *hello* for you - your jaw does this *weird thing*. It sort of shifts sideways, hanging off your face at a jaunty angle, while the word *law* sounds oddly guttural and low. It's... strange. Maybe it's a side effect of getting shot in the head by ol' Benny, but it sure helps with intimidation.
-15 Speech
+5% improved prices while at Good Karma
+10% improved prices while at Very Good Karma

(Inexplicable) Feminist Agenda
Req: Level 6, Male, no Confirmed Bachelor or Lady Killer, CHA 4+, INT 5+, PER 6+
Something stirs within in you - something *interdisciplinary*. Is it a newly formed reaction to getting your head ventilated by a dashing rogue, or something you've always had? One thing is for sure: you're not a *mild* feminist. You're ready to let loose, on each and every member of the un-fairer sex!
+Women appreciate your attitude. +5 Speech and Barter when speaking to women.
+5% damage against men.

Trembling in Titanium (Trait)
Req: END < 5
Just look at those glorious, gleaming metal shells covering those dashing Power Armored soldiers! Just thinking about being enclosed in that tight titanium, close around your whole body, makes you feel vulnerable in comparison.
You've become obsessed with finding and wearing Power Armor, and wearing it grants you:
-20% chance to set off mines.
-10% limb damage.
+20% XP.
+10% carry weight.
+20% equip speed.
However, while you aren't encased in tough titanium, you suffer a penalty to each of those stats, and an additional 20% reduction in AP regeneration speed.

Fatalist
Req: Level 2, INT < 8, Luck < 8, END < 8, STR < 8
Just face it. It's all fucked. You, the world, the people, the animals. All of it. Humanity burned it all, and for nothing.
-25% aid item duration.
-50% natural healing rate.
While below 10% health:
+Chance to set off mines.
-25 Medicine and Survival.
-Limb damage is removed.
+2 skill points.
+Doubled AP regen.
+7 Luck (outside of casinos).

Freeze!
Req: Level 2, PER 5+
Hands in the air! Keep 'em there! Don't move a muscle! One wrong move, and I'll blow you away, punk!
-25% accuracy outside of V.A.T.S.
+25% accuracy in V.A.T.S.

Rigorous Self Critique
Req: Level 8, Evil or Very Evil
Your hands may not be clean, but with lots of soap and a change in behavior, you can wash away your past to start anew.
+1 Luck and -10% buy prices while at Good karma.
+2 Luck and -20% buy prices while at Very Good karma.
-1 Luck and +10% buy prices while at Bad karma.
-2 Luck and +20% buy prices while at Very Bad karma.

Sleepwalker
Req: Level 2, AGI 4+, END 4+, Hardcore
Left foot, right foot. Left leg, right leg. Once you get going, you can practically sleep on your feet.
+Penalties for the first three stages of sleep deprivation are removed while moving.
This perk unfortunately carries a performance cost with it on weaker computers. I don't know of any way to fix this, unfortunately.

Contact Courier (Trait)
Req: STR 8+, ENT 7+, INT < 7
You only know one way to solve your problems - with your fists.
+50% damage with Unarmed weapons.
-50% damage with Melee weapons.
+50% increased spread when using ranged weapons.

Spotlight
Req: Level 10, PER 7+, INT 7+, CHA < 8
Your eyes pierce through people's lies.
-1 Charisma while addressing humans.
+2 Perception while addressing humans.

Torque Dork (Trait)
Req: STR 8+
You just can't get enough of that leverage.
+50% damage with Melee Weapons.
-50% damage with all other weapon types.

Hip Shooter (Trait)
Req: INT < 7, Luck 3+, PER < 6
Like a true gunslinger, you can fire your weapon from any angle; only you can't seem to aim down the sights worth a damn.
-25% accuracy while aiming down the sights.
+25% accuracy while firing from the hip.

Radiant Echo
Req: Level 10, END 8+
Your anomalous body chemistry immediately rejects radiation, at the cost of your health. While you are irradiated, you will lose 1 health and rad level per second. This may be fatal!

Gallows Humor
Req: Level 2, CHA 5+, INT 5+, PER 5+
You know just the right time to "lighten" the mood with a dark joke.
+10 Speech and Barter when speaking to an Evil or Very Evil character.
+5 Speech and Barter when speaking to a Neutral character.

Gunpowder Season (Trait)
Req: AGI 4+, PER 4+
Your only salvation comes from the end of a smoking barrel.
-50% reduced spread when using Guns.
+4x chance to gain cases/hulls when firing Guns.
+50% spread when using Energy Weapons and Big Guns.
-50% attack speed when using Melee or Unarmed weapons.
(Explosives aren't affected by this trait at all. I don't want to make them benefit from it, but they do use gunpowder, so they're a "blind spot".)

Growth Serum (Trait)
Req: INT 7+
You've concocted a bizarre serum, which will increase your Strength and carry weight and you gain experience! However, it does severely tax your body.
+15 Carry Weight at levels 5/10/15/20/25/30.
+1 Strength once you reach level 30.
-2 Endurance until level 15.
-1 Endurance between levels 15 and 30.

Direct Modes of Taxation
Req: Level 12, Barter 65+, PER 6+, Luck 3+
You're the tax collector; the cold, icy grip of death won't part you from the money left on the bodies of NCR and Legion members.
+Chance to find more NCR and Legion money on the bodies of members of their respective factions.

Why Do They Hunger
Ever since you've heard about ghouls, one question has been wracking your brain: Why do they hunger?
-They're definitely zombies. Ghouls suffer much less damage to all locations except the head.
+They're definitely zombies. Ghouls suffer much more damage to the head.
You will also gain a bonus of 25 xp for each feral ghoul kill with this perk.
Granted via prompt upon killing 35 ghouls.

Miss/Mister Impossible (Trait)
You're the luckiest girl in the world, though that doesn't seem to matter much. All of your hits are criticals, but you do no critical damage at all.

Polar Personality (Trait)
You seem to bounce between acting aggressive and kind.
+At odd numbered levels, you gain +4 to Melee Weapons, Unarmed, Guns, Explosives, and Energy Weapons, but your social stats are reduced by -3.
+At even numbered levels, you gain +4 to Speech, Barter, and Medicine, but your combat stats are reduced by -2.
At level 30 (or your max level if you set it lower), you're presented with the choice of the following conclusions:
Aggressor
You've hardened your heart and chosen the path of violence. You permanently gain +5 to your combat stats.
People Pleaser
You've excised your taste for violence and sworn yourself to peaceful solutions. You permanently gain +6 to your social stats.
True Discretion
You know when to smile, and when to bare your teeth. You gain +3 to your combat skills while in combat, and +3 to your socials skills while outside of combat.
-Polar Personality's effects are only coded up to level 30. Set your max level in the config ini if it's lower than 30, and if it's 30 or greater, just leave it alone.
-Polar personality will also change your eye color for combat vs social levels. The eye color for each, and for True Discretion, are configurable in the config ini. Simply replace the current values with the Editor ID of the eyes you desire for each.

Balance Slays The Demon
Req: Level 10, No SPECIAL stat above 8
You don't excel in any way, but you're a well rounded individual, in a world full of freaks and monsters. While all your SPECIAL stats are exactly the same, your weapon AP cost is reduced by 15%, you gain +25% XP, your gained skill points increase by 1, your carry weight is increased by 15%, and your addiction chance is halved.

Graceful (Trait)
Req: AGI 6+
Your poise is perfect; your delicacy is divine; unless you start tripping over your own feet. You gain +1 Charisma while your Agility equal to or greater than 5, but you suffer -2 when it is lower. 

Decentralized Circulation (Trait)
Radiation has begun to provide you with some vaguely... arthropoid mutations. +Your circulation has become decentralized. You take 80% less limb damage.-When your peripheral limbs are crippled, your bleeding is catastrophic. You suffer -1 HP per second for each non-chest limb that is crippled.

Impact Play
Req: STR 3+, END 7+, Masochist
At first it was just bleeding that got your heart racing, but you've developed a taste for more percussive punishment.
+1 Endurance.
+1 additional Endurance and -25% limb damage while below 50% health.

Icarus (Trait)
Your ostentatious nature may help you learn quicker, but it also inspires a greater degree of violence from your foes.+x2 XP gain.-Doubled enemy crit chance.
-15% additive limb damage at level 10, 20, and 30.

Semi-Sacred Geometry
Req: Science 40+, Day Tripper
The lovely air; the wind it breathes; it's all connected, and it's all perfect. Your experience with addictive chems has granted you +2 Int and Per while under the effect of any non-alcoholic chem.

Wolf In Sheep's Clothing
Req: Level 10, INT 6+
You're a master of disguise; while you wear the faction armor of a faction that you have a negative reputation with, you will gain +2 Charisma, +7 Sneak, and +5 Critical Chance.
-This perk is rather strong, but it only applies to the use of Caesar's Legion, NCR, Brotherhood, Powder Ganger, and Khan armors; as such, I want it to still be a worthwhile pick.
-This will work with a mod that disables the disguise system. No really, it'll work fine.

Servant Of Chaos
Req: Level 8
You swear loyalty to no creed, no culture, and no crown. As a Servant Of Chaos, you will gain XP anytime your karma changes, equal to the degree of the change.

Butcher
Req: Level 8, Melee Weapons 35+, Evil or Very Evil
Chop that meat! Thanks to your sadistic tendencies, you now gain bonus XP and restore action points when you cripple or dismember each limb of a dead body.

Last Laugh
Req: Level 2
Last Laugh grants double XP during combat, and for 3 seconds after combat ends, if you lose more than 50% health damage during a single combat session.
Intended to incentivize you to fight through taxing combat encounters instead of just reloading when you get rocked.

Requirements:
JIP LN, xNVSE, Johnny, the usual stuff. SUP and ShowOffNVSE are now required!
Stewie Tweaks' "Show Perk Menu Every Level" setting is also required for the flaw system.
Vanilla UI Plus is considered a requirement, since the text is too long for DarnUI/etc. to not clip.
Consistent Pip Boy Images is considered a soft requirement, as these icons were tuned to match as best they can with that mod's icons.

Installation:
Regular installation, but make sure you set your game's max level config option lower if your level cap is lower than 30.
Ensure that ShowOff is installed.
Make sure the Stewie "bPreviewPerksOnLevelUp" tweak is turned on.

Patches:
Shouldn't need any patches.

Compatibility:
Incompatibility with MUX - When scrolling through perks, scrolling will stop on perks with long descriptions, the scroll will switch to the description, and the W or S key will need to be used to continue moving down the list.
Should be compatible with most anything.
Mods that add mind altering or addictive chems need to be patched. The following script chunk can be added to any other mod's startup script or a scriptrunner to patch them for Elysium:
Spoiler:  
Show
if isModLoaded "Vegas Elysium.esp"
ref rELYFLSTChems = EditorIdToFormID "ELYFLSTChems"
ListAddForm rELYFLSTChems CHEMIDGOESHERE
endif

Limitations:
My writing skill.
There's really only one secondary comment in the perk bonus/malus description spots. I'd really like to flesh those ideas out, but I just straight up can't think of ideas anywhere near as good as DE's quips. Please suggest more if you have more ideas.

Bugs:
Centipedes
Beetles
Gnats

Questions:
Should I play Disco Elysium?
If you like RPGs, yes. It's one of the best.
Will I be missing information or references if I haven't played it?
No. There's some extra flavor you might pick up on if you've played DE, but I think the content here fits into Fallout just fine.
My max level is higher than 30, should I set it higher?
No. Polar Personality's effects are only coded up to level 30, at which point they'll stop taking effect, because the mod expects you to exchange the perk for a different one based on the menu choices you're presented with.

Credits:
Disco Elysium for being so good.
David D contributed some perk ideas and description text edits from the original DE though descriptions.
Credit to ItsMeJesusHChrist of Consistent Pip Boy Icons for the excellent remade source icons that I used in composing the new ones.
Some of ItsMeJesusHChrist's custom icons have been used directly.
DaStig77 helped contribute to the Saguaro Stalker perk's text, effects, and icon.

Permissions:
Please just credit me if you use any of my stuff.

Support:
If you'd like to support my modding work or say thanks, feel free to donate via the Nexus or here at Ko-Fi.