Left 4 Dead 2 is a cooperative first-person shooter video game, the sequel to Valve Corporation's Left 4 Dead. The Game builds upon cooperatively focused gameplay and Valve's proprietary Source engine, the same game engine used in the or...
From Valve (the creators of Counter-Strike, Half-Life and more) comes Left 4 Dead, a co-op action horror game for the PC and Xbox 360 that casts up to four players in an epic struggle for survival against swarming zombie hordes and terri...
The game begins with a presidential briefing in the White House concerning Yuri and how he has begun his take over of the world through mind control. Yuri interrupts the briefing to explain how he plans to take over the world, telling th...
A civil war has swept through the country and you're caught in the middle of it. Track down the person at the forefront of the fighting, a ruthless arms dealer known only as "The Jackal". As you undertake deadly missions and form fragile...
Counter-Strike: Source blends Counter-Strike's award-winning teamplay action with the advanced technology of Source™ technology. Featuring state of the art graphics, all new sounds, and introducing physics, Counter-Strike: Source is a mu...
Return to the Age of Chaos and wage war against live Orc and Human opponents with the same skill and fearless intensity you lived and breathed in your Warcraft: Orcs and Humans career. Put your skills to the ultimate test in the most epi...
Returning after his mother's murder to the semi-fictional city of Los Santos (based on Los Angeles), Carl Johnson, a former gang banger, must take back the streets for his family and friends by gaining respect and once again gaining cont...
Minecraft focuses on allowing the player to explore, interact with, and modify a dynamically-generated map made of one-cubic-meter-sized blocks. In addition to blocks, the environment features plants, mobs, and items. Some activities in ...
Disfruten el dia de halloween con el hunter Venom espero que les guste ;) <3
YellowHeart Replace Witch. YellowHeart replace Witch. Start her if you want to incap or die. Source: - Random Talking Bush - Hyperdimension Neptunia Rebirth1
Replaces the Witch music with OST from Sonic.exe: The Disaster Witch Encroacher (LEAVE): https://www.youtube.com/watch?v=VQuJ2k2SARE Psycho Witch (Base Final 80): https://www.youtube.com/watch?v=mIPSKkhaqFE Witch Roast (Fina...
Leatherface replaces the survivor COACH
I made this pack to have some variants for our servers and with this >Plugin< it is possible. I see much skins to use only never a combination with a plugin that people can actually use in there servers. Credit goes to: l4d2onl4d ...
So i decided to mix some mods in the game to make it more realistic and a bit scarier which is why i made this modpack (I dont own the mods credits go to their original owners)
A reskin purposely made for the Hard Rain campaign but you are more than welcome to use it for any game. Features: Denim garments Scratches, tattoo, bandaid Less wrinkly face Mellow skin Beige hair
It swapes various sounds of the game with Michael Jackson Music
Thought that Fabiana from Max Payne 3 would make a good witch replacement after a few tweaks. EDIT: this only replaces the witch bride in the passing. though calling it a bride witch would suffice since there is only one instance of a w...
This replaces the witch with Miley Cyrus and yeah i know 'why only the witch?' well i don't really think that its a big deal. I saw allot of people hating on her so i decided to make her! This mod contains her voice and music waves. Also...
![Skull Kid Witch Replacement [Zelda Majora's Mask] +Sounds](/imgmgr/limit/img/addons/l4d2/thumb/skull_kid_witch_replacement__zelda_majora_s_mask___sounds.jpg?1463865004&w=384&h=216 "Skull Kid Witch Replacement [Zelda Majora's Mask] +Sounds")
¡Hey Friends! ¡¡¡This mod isn't mine!!! This mod is of Djehuty on STEAM! I'm just share to here. -Djehuty Mod. ¡I hope u are well guys!. Sorry for my bad english...
Only witches. lots of witches. They attack on sight. Now with better code, more witches, and witches that will randomly spawn right behind you. IF NO WITCHES SPAWN: Please for the love of god check for the admin system addon or any muta...
They're Spooky They're Scary They are Skeletons!!! In the spirit of halloween it only feels right to honor the true characters of the holiday, so welcome our guests the skeletons. Special Thanks: The Mask.
Originally created for L4D1 as a replacement for music, Xenogenocide is the original creator of these musical replacements and I packaged them in a .VPK for ease of use. Replaces the songs Tank, Witch, Hunter, Smoker and Boomer.
This Mod replaces the Witch with the Sawcrazy from Cry of Fear. It features the model and textures, as well as custom sounds. Model, textures and sounds belong to Team Psykskallar. Some additional sounds are taken from freesound.
正在逃避绿流感的求生四人组，在逃离期间整片天空突然失真，眼前开始渐白，四人组被强行拉入了E.Y.E的赛博异度幻境之中。这是一场突发的时空穿越，被异维能量篡改的全新噩梦。随着四人组继续的深入，最终抵达“终焉之门”并击败了守门者“炎魔”，借助门的时空...
After surviving an air crash, the survivors turn out to be in most epicenter of the contamination. The Military has already left all attempts to rescue survivors in the region. Thanks to Gajofra for creating loading screen art and Mar...
Description Lima Infection is a custom campaign for Left 4 Dead 2 set in a post-apocalyptic version of Lima, Peru. Explore streets, parks, shopping centers, and iconic locations of the capital city while fighting through relentless i...
My English is not good, so I have to use a translation software. Please forgive me. -------------------------------------------- Plot Introduction ------------------------------------------------- When the zombie epidemic swept the...
-简介 由 Nick 带领的四人小队登上了直升机，故事开始于比尔四人组在离直升机不远的地方，他们得知最后的疏散地点设在市中心广场。 -支持的地图模式 全地图关卡支持战役和对抗模式。 生还者模式可在M1、M2、M3关卡中游玩。 -地图建议 在设置...
I really want to play this campaign but playing the official version on a dedicated server I get 2 fps and no sound even without mods especialy chapter 2, so I made an optimized version of this campaign, all maps have been reworked and r...
[h1] Anemoia [/h1] I fell in love with that word, nostalgia for something never lived... In the shadow of yesterday, the soul plunges, Sighs for moments that never were, Longing for a time that is lost, Yearnings for a past that...
Red Square is a custom 5-map campaign set in an alternate-timeline Moscow. The Survivors discover a secret weapon hidden beneath Red Square and must fight their way through subway stations, underground facilities, and Soviet sectors ...
![[CLASSIFIED] Dead Center Reloaded/死亡中心重装上阵](/imgmgr/limit/img/addons/l4d2/thumb/_classified__dead_center_reloaded_________________________.jpg?1787039001&w=384&h=216 "[CLASSIFIED] Dead Center Reloaded/死亡中心重装上阵")
This is a classified map file. Only developers can use this file. If he makes these documents public. Welcome to my first campaign map. Files only has Gamemaps, this map is not on the Workshop. Developer didn't authorize anyone to ...
Take your shoves to the next level! This script modifies the shove mechanic when you are holding a throwable item. Now, striking the infected with a pipe bomb, Molotov cocktail, or bile jar triggers unique effects based on the grenade ...
Only Kipfel Cute Kitty GitD VRChat BOOTH Avatar - Kipfel Cute Kitty - Glow-in-the-Dark survivor Skin. Replaces all survivors L4D1(bill,francis,louis,zoey),L4D2 (nick,coach,ellis,rochelle) Skin. Rochelle voice support works Credit...
Only Peter Chew HTD Area51 Peter Chew - HAZMAT Team Delta - Area-51 (2005 FPS Game) Survivor Skin. Replaces all survivors L4D1(bill,francis,louis,zoey),L4D2 (nick,coach,ellis,rochelle) Skin. Credits: skin - Smarty Pants Gaming,...
Only Spiderman (request) Amazing Spiderman Survivor Skin. Replaces all survivors L4D1(bill,francis,louis,zoey),L4D2 (nick,coach,ellis,rochelle) Skin. Credits: skin - EnergyFlamer [COMM OPEN] [Spiderman [Ellis] v2] skin edit - ...
Only Black Mesa Masked Marine1 (request) Black Mesa Masked Marine Survivor Skin. Replaces all survivors L4D1(bill,francis,louis,zoey),L4D2 (nick,coach,ellis,rochelle) Skin. Credits: skin - HuronRGH [Black Mesa Masked Marine (Bi...
You can find the weapon sound pack for this add-on at the linked link.
Take your bots' intelligence to the next level! 🤖💥 This addon completely transforms the AI of computer-controlled survivors in Left 4 Dead 2. Forget about useless bots that just stand around; with Advanced Bot AI, your teammates ...
In the linked link.
Take your shoves to the next level! This script modifies the shove mechanic when you are holding a throwable item. Now, striking the infected with a pipe bomb, Molotov cocktail, or bile jar triggers unique effects based on the grenade ...
Make your way through the dead city to the docks! It's a L4D2 port from L4D1 version. Thanks to AGRESSOR to give me permission to convert his awesome work and to Marcos Outsider from "Project Detonado" Youtube channel for gamemaps thu...
Hello again, after like four years and a full Steam2 leak I have returned to provide the best version of Hillview Rapture I've ever done. Is it perfectly 1:1? Hell no, but that was never the intention with Hillview. It was always to tr...
It's Halloween. You know what that means, it's time to find some candy. Make your way through Gloom Town and find some sweets. Link to original: https://www.gamemaps.com/details/30133
My English is not good, so I have to use a translation software. Please forgive me. -------------------------------------------- Plot Introduction ------------------------------------------------- When the zombie epidemic swept the...
Make your way through the dead city to the docks! It's a L4D2 port from L4D1 version. Thanks to AGRESSOR to give me permission to convert his awesome work and to Marcos Outsider from "Project Detonado" Youtube channel for gamemaps thu...
reupload for archival purpose 描述 当新年的钟声响起时，往日热闹的新春景象不复存在，只剩下感染者在街道上游荡着。 在数日前，军队曾试图夺回这个重要的城市，但以失败告终。他们变成了那些感染者中的一员。 四个幸存者因为汽车抛锚而被迫在一...
After surviving an air crash, the survivors turn out to be in most epicenter of the contamination. The Military has already left all attempts to rescue survivors in the region. Thanks to Gajofra for creating loading screen art and Mar...
正在逃避绿流感的求生四人组，在逃离期间整片天空突然失真，眼前开始渐白，四人组被强行拉入了E.Y.E的赛博异度幻境之中。这是一场突发的时空穿越，被异维能量篡改的全新噩梦。随着四人组继续的深入，最终抵达“终焉之门”并击败了守门者“炎魔”，借助门的时空...
-简介 由 Nick 带领的四人小队登上了直升机，故事开始于比尔四人组在离直升机不远的地方，他们得知最后的疏散地点设在市中心广场。 -支持的地图模式 全地图关卡支持战役和对抗模式。 生还者模式可在M1、M2、M3关卡中游玩。 -地图建议 在设置...
NOTES: 1. This is a dedicated map in VERSUS MODE, but it can coexist with the old ver. 2. Now it has been added to the ZONEMOD map pool. 3. 0%-100% of the journey can be TANK AREA. 4. The position of the medicine is fixed and obvious...
Merry Christmas ~ A Christmas and full versus version from [snow den] Welcome to report any problems in versus or coop mode. And welcome versus competitive use this Level code : snowtown_m1 ~ m5 [Mainly Modify] from snow den ...
Nightmare House 2 is an acclaimed psychological horror campaign adapted for Left 4 Dead 2. You wake up inside a mysterious, eerie psychiatric hospital, guided by an unknown voice that knows you only as "Patient 42." Fight your way th...
Description Lima Infection is a custom campaign for Left 4 Dead 2 set in a post-apocalyptic version of Lima, Peru. Explore streets, parks, shopping centers, and iconic locations of the capital city while fighting through relentless i...
Red Square is a custom 5-map campaign set in an alternate-timeline Moscow. The Survivors discover a secret weapon hidden beneath Red Square and must fight their way through subway stations, underground facilities, and Soviet sectors ...
》》》This version replaces more than half of the weapon models, as well as TANK, WITCH, and modifies the properties of all weapons! 《《《 Hello everyone, I am Huang He. This is my first official map. After three years of development, ...
this is the old 2.9 version of Lingshan-Guangxi 2.9 since i really like the event when you destroy the concrete barricade with ATGM credits to TTongJiang_OvO for making this epic maps also recomended to play the newest version here: h...
I really want to play this campaign but playing the official version on a dedicated server I get 2 fps and no sound even without mods especialy chapter 2, so I made an optimized version of this campaign, all maps have been reworked and r...
Glubtastic 5 has been out for two years now, but it was only exclusive to Steam. Well, here it is for Gamemaps, this version only includes minor patches and bug fixes (just the .nav and .lmp files) some unnecessary materials and mode...
Take your shoves to the next level! This script modifies the shove mechanic when you are holding a throwable item. Now, striking the infected with a pipe bomb, Molotov cocktail, or bile jar triggers unique effects based on the grenade ...
The most complete L4D2 vocalizer with nearly 800 vocalization lines. The real deal. FEATURES • 13 radial menus with shared voice lines • 9 radial menus with character-specific voice lines (for each character) • Radial menu for ...
So, about this mod, this allows survivors to get some buffs simply by carrying certain items. Each item has its own buffs & each buff can be stacked as long as survivors keep them in inventory without using them. Here are the items along...
With the Admin System, you are given Admin control. You can spawn Infected, give Survivors weapons/items, kill/revive Survivors, change Convars, change the timescale, and much, much more! All of this is done server-side via chat trigg...
Non VSLib version of Third Person Over the Shoulder Mod Resident Evil 6 Style How to make it work: 1- Subscribe 2- Subscribe to "Claucker's TPS Menu" 3- Start a Singleplayer game or Host a Local Server 4- Wait for the message that...
Death Pistol Power: Instant death on common Instant death on riot zombie (armor ignored) Gibbed common on death 10% chance of instant death on special 2.5% chance of instant death on tank & witch No effect on survivors Can b...
Take your bots' intelligence to the next level! 🤖💥 This addon completely transforms the AI of computer-controlled survivors in Left 4 Dead 2. Forget about useless bots that just stand around; with Advanced Bot AI, your teammates ...
This is the second page for MochaUI-3. Please visit the main page / Landing Page MochaUI-3 below first before continuing >> Steam Linked | Blue Archive Full UI - MochaUI3 Transform Left 4 Dead 2 into Modern UI with Blue Archive T...
I don't own anything in this mod, Got permission to publish in Gamemaps. credit goes to Everice. Notice If you're using pirated version that never been updated to the latest version or using outdated version will get the error tha...
You can find the weapon sound pack for this add-on at the linked link.
ultimate nextbots pack update 2026 - all npc gmod
Admin Menu for use of Admin System from Rayman1103. This is a more complete version with various things and useful commands to use for fun or protection of your server. This Admin Menu was previously made by Egregoros from the Workshop. ...
one using nickname "JugarJuegos" uploaded my 'explosive cars' mod (https://www.gamemaps.com/details/29067) without permission and deleted my name in credits deliberately and he claims his uploaded mod is honorcode23's another version it'...
SCP 096 NEXTBOT addon nextbot Npc gmod
It's Halloween. You know what that means, it's time to find some candy. Make your way through Gloom Town and find some sweets. Link to original: https://www.gamemaps.com/details/30133
'Apparently, The Ceda Team has an evacuation outpost setup at Ash Mountain...might as well head that way!' v3.0 is released now...thanks to those people that helped me out alot along the way.. see changelog for the changes... as there...
This is the first Map of this Author. Do not Judge strictly. This time, the survivors will Bring in the countryside, The city and the Forest That would get to the Rescue site. All rights belong to Taiga Aisaka. The map is loaded here so ...
黄昏时刻系列的第三部。在北方大桥对面的城区也爆发了感染，幸存者们被军方直升机抛弃，不得不另寻出路... The third installment of the <at the gloaming> series.There was also an outbreak of infection in the city across the Northern Bridge, an...
Replaces tank theme with Nintendo's Legend of Zelda: A Link to the Past boss music.
A skin to gascan , this skin is not mine, the original author is Miztaegg Read the changelog for installing this mod
Left 4 Dead DLC Melee Weapon This project adds four fully functional melee weapons to Left 4 Dead 1, a knife, a baseball bat, a shovel, and a pitchfork, with animations for both first-person and third-person views. This project d...
Campaña ambientada en barrios urbanos de clase media en Perú SINOPSIS: Un grupo de desconocidos tienen que trabajar en equipo para buscar un lugar seguro de personas que misteriosamente se volvieron salvajes e irracionales CONTIENE: ...
Allows you to carry two guns.
This is a port of the "Resident Evil 3 - Short & Versus" campaign from L4D2. Port is not an exact copy of the original, various changes have been made to it to work in L4D1. Thanks: • Rodry_metal - for the original L4D2 campaign. •...
(Clean - No Custom Infected Models) The overlords of these grim places do not want you to leave, but you have no plans of staying. Fight your way through hellish pits and nightmares to find a way out. // This campaign is based ar...
Common Infected Sounds from Dying Light (All sound fix) steam workshop Common Infected Sounds from Dying Light(Evil Banana) All sound fix skin
was asked by one of the L4D2onL4D authors to make a few area based skins for the s.i. tank. made texture and normal edits. this one is for the swamp fever campaign. PLEASE DO NOT REDISTRIBUTE, STEAL OR USE MY WORKS AS A BASE WITHOUT AS...
The survivors were trapped in a dock, they must go through Highway 17 to find the evacuation point and call for help to leave out here. Link to original: https://www.gamemaps.com/details/19999
Anm14 Th3 Incendiary Grenade remplacement Molotov Models and Textures: Smod Hack,Compiling:Xenecrite Animation:Xenecrite Sound:Smod
*Please Download "K-On Models (+More)" Its in the Linked Section of this mod.* Copyright: Under Copyright. This Mod, the Character Models used; cannot be Duplicated, Re-uploaded without permission from the original owner "MoistDev"
No end video yet. Play time 1hour, For some videos on BDU... look for "Axe Axee youtube" , They may help you. The ending is not finished, what's there is only to end the game for now. Hint... when you start go straight ahead for more guns.
(Incomplete. Still need some working around for the Boomer and Smoker. Same said for Zoey) Music Files that were remade OR edited that were based/taken from the beta. Beta Zoey voice lines back ripped from the beta footage. Beta Boomer...
For best experience turn off the L4D2 music in options to prevent the music from overlapping.
Now with an unfolded stock. Credits Stoke - Mode l Teh snake - original textures Arby26 - Animations MrFunreal - compile, texture edit, hud icon
Replaces the ak-47 and includes sounds, two skins rng, skin credits: renegade, TOMCOH
Nice little 5 mapper. If you hated it before, stay away. Fun map and definitely belongs here on gamemaps. Author put a lot of work in to it and even though it is not Suicide Blitz 2, it is a good play with some crazy challenges. Enjoy all!
Improve the accuracy and damage of the primary weapons. Hunting Rifle(increase ammo from 15 to 20) Grenade Launcher(increase ammo from 1 to 5) AK47(increase ammo from 40 to 50)
a mod i threw together in 2 hours. credits: Seph - original model Blur- original texture Arby26 - animations Funreal - compile, hud icon Update: Removed most smoothing errors. Edited textures. Added shell ejection. Added 20% of awesom...
Welcome back to San Marino. Pick up the story from where it last left off at the end of 2019 with a vastly improved campaign. After the helicopter crash, Nick and the other survivors must find the last way out of the city - a hidden bun...
Tactical Mossberg remplacement for Autoshotgun Spas Models ans Textures: Ope (Unwrapped by Creeping_Jesus) End of Days Hav0c Kimono H4wk TwinkeMasta Hack Compiling:Xenecrite Animation:Arby 26
Here is this awesome 4 map campaign with a working link. It will still work with the older version missing it as well. Cleaned up a few extra files that were not needed as well.
This mod makes bots pretty stronger than vanilla bots Can not use together with other vscripts mods such as Rectus' Custom weapons, Admin System or any other mods of mine Mod Features - Cs weapons are unlocked - Bots have 150 shield po...
Here is a 3 mapper with VS and survival ported over for L4D2.
Dead Before Dawn: Director's Cut is an update of DBD including more mall, more zombies and more events! It includes our 'deleted' map Undead center, which you'll be able to finally play as full release version! Release: February 16th 2011
Four new survivors must make their way through an infected city to escape the zombie apocalypse! :Recommended - First play with Game Instructor on. :If you experience crashes on map change (Lower end systems) turn Paged Pool Memory to a...
View my complete portfolio, read my blog, and link to my Twitter @ dangerforce dot com Escape Eastern Europe! * Turn Game Instructor on to see important HUD messages Credits LEVEL DESIGN & MAPS Brian Riggsbee POSTER Matt Waggle ADDITI...
Reuploaded December 2020. Yes, that means I'm going to work on the stuff that's not working properly in the map, but I'm working on something else first so it's not going to be for a while. Survivors are stranded in Transylvania. Go t...
This is Custom Campaign for L4D2. You need Left 4 Dead 2 Add-on Support. ** Sorry but I decided to no support of Versus mode **
The storyline offer new setting of Borden city, struggling to survive in an epidemic apocalypse alongside with four heroes from the original L4D. They are getting a chance to save themselves, since US marines are coming back in the aband...
In the Nevada Desert, the U.S. Army have built a Military base around an ancient 'alien tomb' and after years of trying have managed to open it. Four survivors heard rumors of a fortified safe zone in the base, but have no knowledge of t...
Kill plenty of zombies starting in RiverSide (city) Battle through the Back Alleys, over a Draw Bridge, at a Military Outpost Find yourself at a Water Plant and escape at the Subway Station Copyright 2010 [illcannibal and Trunten an...
Fight your way through the City 17 from the very bottom of the town to the trainstation. Campaign is available at the Steam Workshop.
This is based on the first Silent Hill game for the Playstation. Warning, this is a long campaign * 11 maps * The four Finales are random and they all end up to the credit map * Credit map included
'Expert This!' Escape through urban and rural areas whilst fighting swarms of undead on your way to a deserted old military outpost called 'Echo' in the hope to find an evac point. We have a newer and properly fixed up and supporte...
As the last minecart leaves the town, the survivors are forced to find another way to safety. This is a Left 4 Dead 2 campaign based on Minecraft. A short-medium length campaign. 2.1 released, hopefully there's no more broke...
A 5-map campaign set in various locations throughout Japan. Survivors start in Tokyo's red light district, escaping to Kyoto's Kiyomizu temple, before moving further into the mountains the next morning. Includes versus mode, which wor...
In Death Aboard you start out in a prison and work your way out to the nearest docks area. From here, you board a stranded ship and finally to an island where there will be a lighthouse as a finale.
Death Aboard 2 is the convertion to L4D2 of the popular Death Aboard campaign for L4D. It is now set during daytime If you have problems figuring out what to do on the second level: Try looking in the sewers
Its all about surviving and growing so, for growing you need to hunt small fishes and other sea creatures. Explore the Sea World and find out hidden Diamonds. Help the Little Fish to reach its Destination in its Ocean. Help your Fish to...
Sonic 3 Fighter Sonic, known simply as Fighter Sonic on the title screen, is an unlicensed platform game for the Game Boy Advance by Sintax.
Manage your own TCG shop! Stock cards, figurines, customise the interior, and expand your store. Let people compete in your shop and build a personal card collection of rare finds!
Digimon Story: Cyber Sleuth, developed by Media.Vision and published by Bandai Namco Entertainment, and based on the Digimon franchise. It is the fifth game in the Digimon Story series, following 2011's Super Xros Wars, and the first to ...
Fistful of Frags was born years ago as a Wild West themed modification for Source engine. It has been completely renewed for its Steam release, paying special attention to combat mechanics.
Mirror's Edge Catalyst is an action-adventure game and the prequel to Mirror's Edge. The story in the game explores the past of the protagonist Faith. Like in the previous game, the main gameplay in Mirror's Edge Catalyst involves traver...
Available exclusively for Xbox One and Windows, Dead Rising 3 marks the return of one of the most popular zombie video game franchises. Set 10 years after the events of Fortune City in Dead Rising 2, players are introduced to Nick Ramos,...
Dark Souls II is an action role-playing game developed by FromSoftware and published by Bandai Namco Entertainment, released in March 2014. Set in the kingdom of Drangleic, players control the Bearer of the Curse, seeking to cure their u...
Prototype is the first of two games, and let's the user take control of Alex Mercer as he fights to stop the viral outbreak known as BLACKLIGHT throughout Manhattan. Alex is himself infected by the virus, which has given him special, mut...
On 17 June 1789, the Third Estate of the "Estates-General" of France declared themselves redefined as the "National Assembly" begining one of the greatest events in history known as "The French Revolution." By 1792, the Bastille had fall...
Casino is a collection of three card games: Blackjack, Five-card stud poker, Poker Solitaire.
Fantasy Life i: The Girl Who Steals Time is an RPG life-sim game and the long-awaited sequel to the 3DS classic Fantasy Life. This game will expand on what the original did, blending simulation with traditional action RPG combat mechanics.
