THIS MODE NO LONGER WORKS
October update seemed to have fully destroyed any chance of workshop stadium. Stadium workshop only worked through a glitch and this was unfortunately a likely outcome. Keep Stadium PVE in your memories 🕯

Zombie Survival Stadium is a PvE version of Stadium by KamenRider#11346, with the between-round item building, different maps every round and announcer. It uses the Zombie Survival Missions Modded as a base, along with some content from my other mode, Ladies from Hades.

Zombie Survial Missions's original creator is Mazattack#1173, and everything listed here originates from that.

If you're unfamiliar with Zombie Survival Missions, I’ve explained everything at the bottom. New changes are listed up top.

ʸᵉˢ ᵗʰᵉ ᶜᵒᵈᵉ ᶦˢ ʳᵉᵃˡˡʸ ˢʷᵃᵍ

Korean Translation: AAK1A1 by rydbergdelta

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Important Notes

• SET GAME TO INVITE ONLY AFTER STARTING GAME! Players joining mid-game seems to break the game mode!

• Game does not keep any workshop information after switching to a new map.

• I can’t force a win for zombies. If all players die, the entire game ends.

• Thames District (King's Row) does NOT work, do not enable!

• Lobby size is forced to 5 players.

• Role lock is forced, but you can switch to any hero if their role is open.

• You can play as heroes not yet in Stadium and still build shop items, but their third-person camera is unfinished and may look bad or lack UI elements.

• The voting phase will never align with Stadium’s setup.

• If you're having trouble capturing an objective early on, look for a supply drop. Consider if it would be a good idea to let the zombies take it and avoid dying. You’ll become stronger later.

• If the game has become too easy, vote for a challenge to increase difficulty.

New Features

• Voting phase moved to spawn
• Voting phase can end early; the game will start once a player leaves the spawn room.
• New voting option: Number of objectives. The default is 1, but it can go up to 4.
• Cure Power-up removed.
• Healthpacks will always cure infection.
• Vaccine now reduces infection by 2, and you can give other players the power-up by standing within 3 meters.
• Infections start while under 80% of your current health.
• Zombie Hybrid infection also starts under 80%, but then 100% while infected.
• Kevlar Enhancement removed.
• Enhancements have been rearranged.
• Default Enhancement is now random.
• New Enhancement: Melee Master
• New Enhancement: Antwatch
• New Mutation: Armed
• Mutations are more likely to occur on 5 player difficulty.
• New Contestor variant: Mercy Zombie
• Standoff Objective removed.
• Contestor spawns more frequently.
• Contestor's special ability activates while inside any objective's radius.
• New Objective: Showdown
• New Zombie Egg Variant: Hazard Zombie
• New Zombie Egg ability.
• Game waits 4 seconds before declaring defeat. This is for the Stadium item Geneticist's Vial to work.

Enhancement: Melee Master

Melee damage builds up stacks that heal you for up to 150 health when under 30% health, reduce infection by 1 at maximum stacks. Melee damage at high speed can knock down enemies and deal double damage.
Reinhardt & Brigitte's primary fire, Torbjorn's hammer, Winston's primal rage, and Genji's Dragonblade are considred melee attacks for this enhancement.

Enhancement: Antwatch 🐜

Become small. Your barrier size is scaled up to compensate. There’s barely any upside to this. You’re an ant. Only pick this if you have the Ant Overlord title. You can pick it anyway, but you’ll just be a regular ant. Cannot be randomly selected by default.

Mutation: Armed

Zombie with this mutation do 28% less damage, but get to use their gun instead. Mutation does not show up in Swarm Shootout & Pandora's Box Challenge.

Slimer Contestor

Abilities
Detour	Almost always in the Valkyrie state. While in ultimate, picks up target and flies around for 4 seconds before dropping them.	2 second cooldown

Objective: Showdown

Capture an area from enemies that deplete your progress when they stand inside of it. Objective radius scales with percentage progress. Enemies killed inside the objective have a chance to grant bonus progress, with the chance increasing based on their maximum health. Percentage is protected at 25%, 50% and 75% marks.

Objective: Zombie Egg

Is now either Hazard or Wrecking ball. Any player who damages the Wrecking ball variant becomes marked, and the player farthest from him will get chased down. The portal chases players more frequently depending on difficulty settings. Hazard variant does abilities from his standard boss form, but also constantly does Violent Leap attack.

No longer invisible, meaning lock on abilities can target it.

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Zombie Survival Stadium Details

(If you already know ZSM, you don't need to read this)

Zombie Survival Missions (modded and all other variants) start with a voting phase that lets players select the objective, mode, and challenges. You’ll also be able to vote for the objective count, so you can use a finished build for longer. Use Ability 1, Ability 2, Reload, and Ultimate buttons to vote. Your Melee key is used to select an enhancement. You can also crouch to switch heroes during this time. Holding Secondary Fire while voting lets you vote in reverse order.

After leaving the spawn room, the vote results will appear on screen and the objective will spawn. Objectives may involve reaching a goal area or defeating a boss. While you do this, the Stadium objective (Push, Control, Clash) is locked in place by two invisible bots (your ally-targeting UI may lock onto them). After completing all Workshop objectives, the Stadium objective will unlock for both sides to compete over.

Supply drops descend from the sky throughout the match, handing out consumables that provide offensive boosts or defensive utility.

Zombies currently don’t directly acknowledge the objective, but will still prioritize players on it. Zombies can win the round, letting you get more powers. If you're struggling to complete it, it may be better to let them win and get a stronger build. The match ends based on the Stadium’s score. If all players are dead, the game will end entirely.

Cassidy will hack zombies with his Magnetic Grenade. This is meant to be buff hinder as some movement abilities are made through workshop. Hacked zombies cannot give infections.

Some hero abilities, like Sombra’s stealth and Venture’s Burrow, make the player invisible to zombies. While these abilities are active, players cannot complete objectives or do revives.

Death

Players do not respawn normally. Instead, they are downed and must be revived within 60 seconds; otherwise, they are removed from the match until the current objective is completed. The base revive time is 5 seconds and increases each time a player is revived. Revived players gain temporary damage immunity.

Mercy’s Resurrect and the Stadium item "Geneticist’s Vial" can revive players without increasing the revive time, but they do not grant damage immunity.

Difficulty & Challenges

Game difficulty is scaled with the number of players. Difficulty increases zombie health and damage, and Contestors will begin spawning once there are three or more players. To raise the difficulty further, players can vote for a Challenge modifier.

Challenges
None	No Challenge. Default if none is voted for
Swarm Shootout	Zombies constantly fire their weapon unless an ability already uses it. Revive times are shorter, and all zombies do 28% less damage.
Random Abilities	Zombies randomly use one of their original hero abilities every 2-8 seconds. Mercy zombies use their ultimate instead.
Insanity	All zombies have high speed, damage, and health, higher than maximum player difficulty.
Pandora's Box	Swarm Shootout, Random Abilities, and Insanity are all active at once. Revive times are not reduced.

Objective Types

Showdown

Capture an area from enemies that deplete your progress when they stand inside of it. Objective radius grows with percentage progress. Enemies killed inside the objective have a chance to grant bonus progress, with the chance increasing based on their maximum health. Percentage is protected at 25%, 50% and 75% marks.

Boss

Simply kill a powerful, high-health version of an existing zombie. This boss has 8 different variants, each with abilities listed in the zombies section.

Biomorphing

Grab resources from marked zombies and deposit them at the marked location. One resource type will be more valuable than the others. The objective will reach three checkpoints, each time changing which resource is worth more. Eventually, the objective will require you to give up your health instead of collecting resources.

Survivor Rescue

Guide a survivor to a marked location. The survivor will follow a player as long as they remain within radius. Zombies will target the survivor over real players. If the survivor is downed, they become immune to damage and slowly regenerate health. Players can heal the survivor.

The survivor will automatically follow the closest player first. If you communicate “Group up!”, the survivor will follow you instead. Saying “Goodbye.” or moving out of range will cause the survivor to stop following you.

Kill Zone

Players must fill a quota of dead zombies within this objective. Points are earned by killing zombies inside the objective or by getting eliminations while inside the objective yourself. Zombies with higher health award more points. The objective radius will expand as you kill more zombies.

Zombie Egg

Kill a special boss that spawns zombies from its center. This boss has 2 different variants, each with abilities listed in the zombies section.

Satellite Uplink

Three terminals are placed around the map. All must be completed to finish the objective. Once done, a satellite laser will be called, killing zombies for a short time. The satellite can also deal friendly fire and kill players.

Enhancements

Can be chosen while in spawn even when voting is complete. If not picked, enhancement will be given randomly.

Enhancements
Charge Battery	Hold down your melee key to place a battery that grants 15% ultimate charge to whoever picks it up. Battery refreshes each time it is placed	20 second placement cooldown. 10 seconds to recharge.
Born to Battle	Landing a killing blow on a zombie grants an extra use of any ability on cooldown. This enhancement does not work with every hero ability, this is a bug with Workshop.
Laser Barricade	Hold down your melee key to place a barricade that blocks zombies. The damage dealt to the barricade scales with the zombie's health. Barricade slowly regenerates over time.	30 second cooldown
Brainkiller	Critical hits do 50% more damage to zombies, and 20% more damage to boss zombies.
Pyrotechnic	Weapon and ability damage to zombies within 15 meters sets them on fire, dealing damage over time. This enhancement does not work with every hero weapon and ability, this is a bug with Workshop.
Plague Doctor	Healing players reduces their infection levels, and reduces yours by a smaller amount. Bonus healing to infected players.
Zombie Hybrid	Gain infections much faster, but take less damage over time. Press your melee key to deal a burst of damage around you, scaled by the number of infections you had, then remove all infections. Infection is not reduced by Plague Doctor but will still be cleansed by health packs and vaccines.	20 second cooldown
Melee Master	Melee damage builds up stacks that heal you for up to 150 health when under 30% health, reduce infection by 1 at maximum stacks. Melee damage at high speed can knock down enemies and deal double damage. Reinhardt & Brigitte's primary fire, Torbjorn's hammer, Winston's primal rage, and Genji's Dragonblade are considred melee attacks for this enhancement.
P.U.P	A drone passively protects you from a zombie that targets you. It knocks back the zombie if it’s nearby and freezes it if it’s at a distance.
Hitchhiker	Press crouch near a player to attach yourself on their back.
Antwatch	Become small. Your barrier size is scaled up to compensate. There’s barely any upside to this. You’re an ant. Only pick this if you have the Ant Overlord title. You can pick it anyway, but you’ll just be a regular ant. Cannot be randomly selected by default.

Supply Drops

Supply drops will disappear over time if not activated. Additional drops won’t spawn if too many power-ups are left unused.
Use the Interact key to open drops and collect or consume power-ups. Hold Reload key to drop a power-up in front of you.

Power-ups
Instant Revive	Resurrect a downed player while inside their revive radius.
Force Field	Block zombies from stepping inside a large bubble.
No Cooldowns	Constantly reduce all your cooldowns to 0 seconds.
Air Strike	Marks an area on the ground to be bombarded with damag.e
Beacon of Healing	Create a healing field, and boost your own healing dealt.
Vaccine	Reduce you and players within 3 meters infection level by 2, if infection level goes negative, it becomes a vaccine to block infections instead.
Sentry Turret	Places a turret on the ground that shoots zombies.
Cloaking Device	Become invisible to zombies, but cannot participate in Workshop objectives or revive players. Can be cancelled early by reactivating while crouching.
Super Nano	Boost damage and movement speed
Bounce Pad	Place a bounce pad on the ground that launches players into the air
Ultimate Charger	Rapidly builds up player's ultimate charge percentage
Stun	Stuns a zombie. The stun chains to nearby zombies. If no others are nearby, the last stunned zombie is stunned again for a longer duration. Stun is reduced on Boss enemies

Zombies

(They all have code names, but you won't see these names in game. Same with abilities I just do this for a table.)

Basic (Normal, Boss)

Abilities
Generic	Does nothing at all.
Tornado	Shadow Steps towards target, then uses Wraith to make all players & zombies float into the sky	5 second cooldown. Boss only

Rusher (Normal, Boss)

Abilities
Zippityzip	Chases down target faster than other zombies
Eruption	Activates ==Molten Core= and shoots lava into the sky	10 second cooldown. Boss only

Behemoth (Normal, Boss)

Abilities
Radioactive	While below half health, uses Take A Breather to emit toxic gas in an area around him, dealing damage over time to nearby players.	8 second cooldown
Wasteland	Uses Take A Breather to instead build charge for this attack. When fully charged, fires two gas bombs that cover a large area with damage over time.	3 second cooldown for charge. Boss only

Stalker (Normal, Boss)

Abilities
Phantom	Use Fade three times around target, ending with being in front of target's face	5 second cooldown.
Torment	Fades around map, and then uses Coalescence breifly before fading again. Coalescene damage knocks players back. Can be crowd controlled out of ability.	10 second cooldow., Boss only

Blaster (Normal, Boss)

Abilities
Targeted Strike	Charges up an attack, then launches into the sky and fires a single rocket that sets players on fire, dealing damage over time.
Reinforcement	Takes less damage while charging up attack
Frenzy	Fires Barrage instead of a single rocket. Barrage damage will also set players on fire.	Boss only

Daytaker (Normal, Boss)

Abilities
Launch	Grabs a nearby zombie and launches it through the air with Outburst. If the zombie is afflicted with crowd control, is a boss, or is another Daytaker, she will not pick it up.	3 second cooldown, 7 second cooldown for bosses
Revenge	If dead from an enviromental kill or is below half health, uses Captive Sun on her most recent attacker	10 second cooldown. Boss only

Brute (Normal, Boss, Contestor)

Abilities
Bludgeon	Swings its hammer when near a player. If Brute is larger in size, the hammer’s hitbox is bigger than it appears. A successful hit knocks players back and knocks them down. Knocked-down players cannot be knocked down again for 8 seconds. Gains 25% ultimate charge on hit.
Earthquake	At 100% ultimate charge, slams the ground with Earthshatter, launching all players and zombies in its range into the air.
Haste III	Moves much faster and throws Fire Strike when directly facing target.	Boss only
Chase	Flashes orange when spotting target, then uses Charge in target's direction.	30 second cooldown. Contestor only.

Slimer (Normal, Boss, Contestor)

Abilities
Pull	Fires a tether that pulls target towards zombie. Can briefly knock back if target is not facing zombie.	5 second cooldown
Valkyrie's Blessing	Stands in place and goes in ==Valkyrie= state, giving all players and zombies the gift of flight. Will constantly fire bullets while in this state.	10 second cooldown.
Detour	Almost always in the Valkyrie state. While in ultimate, picks up target and flies around for 4 seconds before dropping them.	2 second cooldown

Hazard (Normal, Zombie Egg, Boss, Contestor)

Abilities
Trap	Uses Jagged Wall to block target from behind or close line of sight, can also be used as a jump pad for zombies when target is unreachable	7 second cooldown, can use jump pad earlier
Follow	If target's speed is 10 or higher, closes distance with Violent Leap	1 second cooldown
Vanadium Cavern	Spams Jagged Wall for the amount of players in his line of sight	8 second cooldown. Zombie Egg & Boss only
Vanadium Storm	Uses Downpour 3 times in different directions when in melee range	10 second cooldown. Zombie Egg & Boss only
Combo	Uses Downpour when spotting target, then follows up with Violent Leap	30 second cooldown. Contestor only

Striker (Normal, Zombie Egg, Boss, Contestor)

Abilities
Slam	Jumps into the air and slams down with Piledriver. Damage knocks players up, Boss form can knock players down.	3 second cooldown
Relentless	Quickly move position towards the furthest player away	Zombie Egg only
Escalate	Throws Minefield when inside objective	30 second cooldown. Contestor only

Gladiator (Normal, Contestor)

Abilities
Shout	Uses Commanding Shout when spotting a player within 30 meters.	20 second cooldown
Axe Swing	Swings Carnage the first time when in melee range.	8 second cooldown
Stampede	Uses Rampage when within 30 meters of target.	30 second cooldown. Contestor only

Charger (Normal, Contestor)

Ability
Overrun	Backs up before using Overrun, stomping down after coming in contact of a player or after 3.5 seconds.	6 second cooldown
Escalate	Uses Cage Fight and Cardiac Overdrive when inside objective	30 second cooldown. Contestor only
Chronos 3	His Overrun ability has a 2 second duration instead of 3.5, and has a cooldown of 4 instead of 8	Contestor only

Successor (Contestor)

Abilities
Slam	Leaps into the air with Seismic Slam when within 30 meters of target.	10 second cooldown, resets if respawned
Counter	Reacts with Powerblock if his target uses their ultimate, and then follows up with Rocket Punch if he takes damage while casting.	10 second cooldown
Strike	Uses Meteor Strike when inside the objective, prioritizing other players on the objective while targeting the highest elevation level.	30 second cooldown

Protector (Contestor)

Abilities
Rush	Uses Kitsune Rush when within 30 meters of target.	10 second cooldown, resets if respawned
Touch	Throws Protection Suzu at her feet when an ally within 5 meters of her is under hard CC, hacked, or is below 50% health.	5 second cooldown

Bomber

Abilities
Detonate	Explodes when near a player, self-destructing and damaging nearby zombies.

Cadaver

Abilities
Detonate	Throws Biotic Grenade at her feet when near a player, self-destructing. Anti-heal will linger for a short time after death.

Slicer

Abilities
Burrow	Uses Burrow when spotting players within 15 meters, after moving underground for 2 seconds, or once near a player, then emerges into the air in the direction of target player	1 time use
Dash	Replaces Burrow ability after using it once, uses Drill Dash into the air and lands near target player	3 second cooldown
Deep Cut	Melee ability can apply multiple infections

Rider

Abilities
Grapple	Can attach to nearby zombies. When near a target, leaps and attaches onto them.

Downfallen

Abilities
Fire	Throws a Hypersphere when the distance from a target player is between 11 meters and 5 meters.	2 second cooldown
Vacuum	If not in his target player's view, slowly pulls the target with Kinetic Grasp toward him. This ability will be canceled early when faced by the player.	6 second cooldown
Plummet	Grabs the target player when within 3 meters, ascends into the air, bites, and then slams the target player down. Victim cannot be affected by this ability again for 8 seconds.	7 second cooldown

Tunneler

Ability
Tunnel	Constructs Teleporter towards the player that she and other zombies can take.	7 second cooldown

Smolder

Abilities
Sneak	When within 9 meters of his target or when the target sees him, he drops Barrier Projector and crawls slowly at a speed of 0.1 for 6 seconds. If he doesn't take damage during that time, he dies.
Enraged	After taking damage, boosts his speed, size, and leaps toward the attacker using Primal Rage.	1 time use

Zombie Modes

Modifies the spawn rates for zombie types. Going to change New Blood at some point.

Modes
All Zombies	All zombies, but high health zombies are less common.
New Blood	Most recently added zombies spawn.
What'll be?	All zombies have equal spawn rates.
Zombie Shuffle	Four zombies are randomly chosen every minute and a half, with one type spawnning more frequently than others.
Dinner Rush!	Zombies with fast mobility spawn, but high health zombies are less common.
Ham N' Hammer	Only Reinhardt & Wreckingball zombies spawn.
Whole Hog	Only Roadhog zombies spawn, with an extra ability tied to this mode.

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Sources

This post utilizes other codes either in part or in full. This could be because they remixed them, used parts of them, were inspired by them, or other reasons.