Left 4 Survival

Summary
Left 4 Survival is a game in ROBLOX made by ToaTahu003. It was released in March 19, 2010 and is based off Left 4 Dead, a game made by Valve which was released in November 17, 2008 (2009 in Left 4 Dead 2), just 2 years earlier than this game. As of February 12th, 2022, It had over 36.3M Visits.

Description
Welcome to Left 4 Survival! A fun multiplayer game that allows you to play as a survivor or an infected zombie! Can you survive the infection and claim victory over the zombies?

Game Mechanics
Left 4 Survival has mechanics which are survivors and zombies. There are about 13 Infecteds, 35 weapons, 4 Armors, 4 Defenders, 7 event gifts and more.

Music
The player can turn the music off and on. If on, the music plays, and if off, it cannot be played. They are also played when the round starts. Its icon colour is green when on. When off, its icon colour turns into red. For musics ingame, they are coloured white.

Penalty
The penalty is a feature in Left 4 Survival. It activates when the survivor accidentally kill themselves which caused by water in Sodden Swamp, Salty Sea Harbor (if not damaged by any infecteds), fires, explosions and fall damages. It said "Penalty! 100 Coins", which means it takes away 100 coins from the player who trigger this. The message icon is red.

Messages
These are messages that is appeared when a player kills a infected, is pinned by a Tangler or Hunter or when Banshee is startled. They are coloured yellow and orange.

Party
Party is a feature that can only be seen in the lobby. It allows a player to create their party and invite any players who are not invited by any party creators yet. As its description said, it increases the player's chance of being in the same team. The player only invites at least 2 players, trying to invite another one after this will result a message to show up. Its icon colour is purple.

Daily
Daily is a feature that was added in 5.8.1. There are about 5 days. It gives players a coin which depends on the number of day. During Festival Fall Event 2021, coins were replaced by candy canes on Day 2 and 4. Its icon colour is yellow.

Quest
Quests were features introduced in unknown update. There are 3 quests (one which relates to events and contains anything instead Diamonds) which contains Diamonds (formerly Coins before 5.8.4 was released), Example: Completing "Concussion Not Included!" will give 25 Diamonds and completing "The Safe Way" will give 5 Diamonds. It has 3 different quests, "Daily Quests", "Weekly Quests" and "Event Quests". Daily Quests has 1 Day to reset while Weekly Quests has 7, the Event Quests, however do not have any days to reset, instead it does when the respective event has been ended. It rewards any different reward rather than Diamonds. Its icon colour is blue.

Store
Store has 7 categories where a player can buy any of each of any items for Coins, Diamonds and Robux. Gifts are the features on this one where items are only available during Holiday Events, and was unavailable when that event ended. "Buy Diamonds" is a feature on this that needs Robux to buy Diamonds. Its icon colour is sky.

Starter Pack
Starter Pack is a gamepass that requires 50 Robux to buy. Once purchased, it gives player a Frying Pan, Light Armor, Bloxy Cola and 1000 Diamonds (Enough to buy Laser Pistol). This can only be purchased once. Its icon colour is light blue.

Patch Notes
Patch Notes is a feature that was added in 5.8.7. It shows any players an information when the game is updated, with additions, bug fixes, removals and general changes. It used to be only seen in lobby during its addition, but can now be seen ingame so that it will be much easy to understand what update the game receives. Its icon colour is gray.

Infecteds
Infecteds are infected human beings that are the main threat of survivors. Their goal is to kill all survivors before they complete their goal or beat them in Capture Points and Deathmatch. There are currently 13 of them, which are Normal Zombie, Crawler, Bloater, Spitter, Riot, Tangler, Hunter, Chiller, Inferno, Francisco, Shaman, Banshee and Juggernaut.

Maps and Gamemodes
Maps and Gamemodes are features that can be voted in the lobby. You can vote 3 of them (formerly 2 before 5.8.1 is out). There are 11 current maps and 8 current Gamemodes, with the total of 14 maps and 11 gamemodes if included removed, limited and shutdown ones.

Weapons
Weapons are survivor related items that can only be used by survivors and not zombies. They required Coins, Diamonds and Robux with 3 weapons (Trench Gun, Pistol and Uzi) are starter weapons when a newbie has joined the game.

Defenders
Defenders are pets. They can help you kill zombies and even save you from Hunters which should be a must use tool if you hate Hunters. Just one Hunter without them can result your death. There are 4 of them, one of them which is limited.

Utility Items
Utilities are items. They can be bought for Coins, Diamonds and Robux (similar to weapons) but can be found on health box. These can be only be used one time per round.

Time
Time is a clock in Left 4 Survival, where survivors must wait for the time to win in Rescue, Deathmatch (if on first place), Survival and the shutdown one Capture Points (if survivors were on first place. For Elimination, Arena and Campaign, survivors must finish their tasks while zombies try to kill them to win. If all of them die, the time resets instantly and the zombies win.

Survivors
Survivors are the main enemies of zombies. Their goal is to complete their task to win while killing infecteds or beat them in Deathmatch or Capture Points. They can use Weapons, Armors, Defenders and Utility Items. When they die, they will scream, implying their teammates that they got killed and become a infected (Not including Deathmatch and Capture Points).

Obstacles
These are objects that can be pushed by Survivors and Zombies like Barrels. There are many obstacles to find on maps.

Events
Events are limited updates that has limited items or maps. Different events will be added to the game depending what month it was. Example when in December, Winter Holiday will start here. There are about 6 known events in the game. More events will be added in the future.

List of known events:
 * Winter Holiday 2019.
 * Thanksgiving Event 2020.
 * Winter Holiday 2020.
 * Metaverse Event.
 * Fall Festival 2021.
 * Winter Holiday 2021.

Experience
Experience was a former feature that was added in 5.8.1, it gives to player when they kill any infected, win the round, or complete the quest. This was removed from the game in 5.8.1_01 for unknown reasons, making it one of the features to be removed.

Contracts
Contracts was a former feature in Left 4 Survival that was added in 5.8.1 and can be found on the Shop. There are 3 of them, Bronze, Gold and Platinum. They are required to buy any weapons, depending how strong the weapon is. Example the Crossbow, which is stronger requires Platinum contract to buy while Luger, which is weaker requires Bronze contract. This feature was removed for unknown reasons, due to people in the community being too toxic, wanting it to be removed and said they will no longer use the best weapons like Crossbow and Sledge Hammer.

Profile
Profile was a feature in Left 4 Survival added in 5.8.1. It shows players their own stats which contains Diamonds, Contracts and even Coins when they levelled up. This was removed for unknown reasons. Its icon colour is Orange.

Trivia

 * It is based off Left 4 Dead, a game made by Valve.
 * Some believe Left 4 Survival is known to be similar to Reason 2 Die Awakening, a game made by a different person PlaceReBuilder which is also a Left 4 Dead inspiration game in ROBLOX.
 * Some of the musics added to Left 4 Survival were removed from the game. There are no reasons why.
 * It's population used to be around over 1,000 players, but was dropped to over 50 or 100 due to the game not updating yet around 2021.
 * When the survivor themselves was killed, the sound they creates when died was used from Candy's and others' jumpscare from the FNAF horror fan game, Five Nights at Candy's.
 * It was supposed to be not on the game's earliest versions, but was changed.
 * When survivor dies, their screen fades into black before they become a infected. This was removed for unknown reasons.
 * Winter Holiday Event 2021 was supposed to end in January 16th, 2022, but was extended to January 23th, 2022 due to deadlines.