All Custom Campaigns Maps:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2670184231

All Custom Survival Maps:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2832675452

-Demons
by Lousaffire

4 Below
by DirtbasherDad

A Military History
by AndersonCGW

Alcatraz Island
by ComradeRay and ScoobyWRX

Alpine Crossing
by CoreyFM

And Your Little Dog, Too!
by Allison E. Janssen

Arena of the Dead 2
by J.Sera

Arctic Atrium
by Reveaper

Assault
by ZooL

Badwater Basin
by jsparakov

Bedrooms3: Bite Size [Remix]
by Kid Ying

Beginners luck
by Memnus

Big Wat
by Awarets

Big Wat 2
by Awarets

Black City Ext. Mashup
by Timelords / Trane / ILCannibal

Blackmist
by 39(afk) and ★锋锋★

Blood Harvest Storm Mode
by HerobrineAce

Blood Tracks
by Christopher Collini

Ceda Fever
by Damon

Cemetery
by Killalinuxguru

Class Reunion
by SmokerSolution

Claustrophobia
by Blood_Wraith

Cold Fear 2
by (T.I.P.)^TRANE^RU$

Cold Stream Storm Mode
by HerobrineAce

Confusion2
by ZhaCai

Consumer Euthanasia
by Dr. Filch

Cornered
by tdDaz

Cornfield Bonfire
by green

Crash Bandicoot: The Return of Dr. Cortex
by DoctorAnubis and Szalik

Crash Course DayTime
by HaiTian

Crash Course Enhanced - CCE
by Advarp and SatanNuts

Crash Stream Storm Mode
by HerobrineAce

Curse of Millhaven
by Jackkel Dragon

Damnation
by Lightboy

Dark Carnival Storm Mode
by HerobrineAce

Dark Sacrifice
by HaiTian

DarkStreet
by DespaKid

Day Break
by DannBo

De_mirage
by RMV

Dead Air Daytime
by HaiTian

Dead Air Modified
by HaiTian

Dead Air Scavenge Map
by Hsesha, Murky, Max Archangel (RU), and Sha

Dead Air Storm Mode
by HerobrineAce

Dead And Buried
by Jarhchief

Dead Center Escape
by David Lopez

Dead Center Storm Mode
by HerobrineAce

Dead District
by The Mark

Dead End
by Coolz

Dead Line 2
by Trunten and Rayman1103

Dead Moon Night
by larrybrains

Dead Swamp
by eligri

DeadCity II Lite
by ilcannibal

Deadly Dispatch
by CaptainWinky

Death Aboard 2
by Diputs

Death Pit 2
by Thegreen16

Death Toll Storm Mode
by HerobrineAce

Diescraper Redux
by Rectus and FLSH

District 14 Rooftops
by Chaingunfighter1

Down On The Farm
by Oilcake

Down The Drain
by spaaps

Downtown Dine
by ~GShock~ and XipoTec

Dust2
by ZooL

Election Hell
by Snavyseal

Endline
by life_hotdog

Escape From Parkdale
by Oilcake

Exempt Orange
by Exemptrook527

Fall in the Forest
by HerobrineAce

Fan Feast
by ZapWizard

Fatal Freight: Remastered
by Tamari

Final Evac
by Arrrrrrgh

Final Flight
by youporkchop5

Forage
by RabidMonkey

Free Passage
by Gurt

Getting out
by beholder69

Gone in 60 Smokers
by J.Sera

Gunkanjima
by Doktor haus

Half-Life 2: Water Hazard
by |NFG|Angerfist

Hallowed Winter
by EvilGoodGuy

Harvest & Trustee
by ZquiteGuys

Haunted House
by Richy221

Hell House 2
by EvilGoodGuy

HGYDockLight
by Wyziva

Hopeless
by R0LIAS

HotelSwiss
by Alex Galuzin

Hunting Season
by Aigik

Ice Break
by EvilGoodGuy

Inbound [Day / Night]
by PigPig and seth

Industrial Death
by finjopa

Ingress
by ZquiteGuys

Italy
by ZooL

Kokiri Forest
by Gnarpig

Kruffty Center
by Sir Loconator III

Krusty Krab
by ✠RichardHafer✠

L4D2 Radio
by Megadude

Le village 3
by Lemmy1916

Left 4 Cake 2
by J.Sera

Left 4 Doom
by TimEh

Left 4 Orange
by 321Gamer

Left Behind
by ilcannibal and 1SG.Heartless

Let's Build:Deconstruction
by MapEater

Linux Beta/Unused map collection restored
by GenericTech, Gyroic, Dcj95, and Veranum

Locked in Hell
by Baxayaun

Lost
by TRANE

Luigi's Mansion
by Kubbles

LustyLeopard
by Dr.Med.Wurst and C0RE

Medical Storage
by Exemptrook527

Mellow Manor
by Knux, Cryptid Melon, and IzzY

Minecraft Jungle
by Rocket Launcher Maniac and Mrs Flarey

MT. Airy Survival
by alloweenMan

Nine to Five: Office Building
by Driver
NO MERCY DAYTIME
by HaiTIan

No Mercy Modified
by 1SG_HEARTLESS

No Mercy Storm Mode
by HerobrineAce

No Parking
by Lou Saffire

No Shipping
by LATTEH

North Pole
by spaaps and Shard

NOTHING LASTS
by geba

Nuked
by CG Sorrow

Oilrig
by MapEater

Open Road
by ICS

Orange_X3
by Pilk and Jackettie

Payload Upward
by zombie (anti-robot AI), Smrekish, and Orinuse

Plaza
by Josh Arabia

Pollute
by Eigenaardig_Knaapje

Pub Crawl
by Jarhchief

Qrylz Glades
by ZquiteGuys

Rats PayDay 2
by ZquiteGuys

Red Snow
by quzzle

Riverside Bridge
by Marcusyaho

RMS Titanic
by ThisKid55

Road To Nowhere 2
by MapEater

Ruined Summer
by NicyNish and MerCurio

Run To The Hills
by lordnitro

Sacrifice Storm Mode
by HerobrineAce

School Soccer Stadium
by [LTU]sMatis

Session 9
by that b*stard, Stay Puft, and Splinks

Slope
by Billy Hallden

Small Town
by FutureContainer

SmokeR on the Water
by Plebs

State Of Emergency
by MapEater

Stormy Outlook
by ProdigyXP

Suicide Blitz 2
by R.T. Frisk

Super Mario 64 Peachs Castle
by ✠RichardHafer✠

Survival Camp
by NieJurasPatryk

Surviving the Holidays
by wyte_eagle

Swamp Fever - Night
by Mechanic

Swamp Fever Storm Mode
by HerobrineAce

Swamp Fever: Drought
by мяFunreal

Tank Factory
by McMelchior

Technology
by eligri

Templo
by trippod

The Dark Parish - Remastered
by SashaDudeRUS

The DISTINCTIVE Map
by 大康

The Education Of Death
by dbsoldier

The Final Cut
by Ders

The Final Exam
by Ross

The Gauntlet
by Ausimus

The Hole
by Leon & Anduriel

The Last Daylight
by Roku

The Island
by ZeZa

The Palace
by Grippy

The Parish Storm Mode
by HerobrineAce

The Park
by MapEater

The Pier
by TelicMachine

The Return: Escape from Louisianna
by Hiiiii51

The Room
by Richy221

The Sacrifice: Night Edition
by KingDavid

Till Death Do Us Part
by Пахарь-Трахарь

Town of Dryfield
by Fat Seraph Studios

TownFullChaos
by DespaKid

Truck Stop
by Allison E. Janssen

UnderVillage
by Niecierpliwy klient

Urban Flight
by The Rabbit

Vanilla Ghost House
by 8BitSandwich

Welcome to Hell
by Garfield!!

Wheel of Misfortune
by -Jozin-

White Hole
by CastorJudo

White Prison
by The Mark

Wyandotte Boat Club
by ThisKid55

YachtPanic
by Niecierpliwy klient

Zooicidal Tendencies
by Melchiah

I did this for all of you it toke me 2 Weeks to make this list, so ummm. Have Fun!