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游戏介绍：

《求生之路2/生存之旅2 Left 4 Dead 2》是一款第一人称射击游戏，你会扮演四名新生还者中的一名，装备有大量先进的武器。除了枪支之外，你还会有机会用不同的近战武器在感染者上泄愤，例如电锯、斧头、甚至是致命的平底锅。
你会用这些武器与 3 个新的恐怖的难对付的特殊感染者展开战斗（在对抗模式中也可以扮演这些新的特殊感染者）。你也会遭遇 5 个“不寻常”的普通感染者，例如可怕的泥人。
人工智能导演系统 2.0 让《求生之路》更疯狂，有更多的动作体验。升级版的导演系统能程序化地改变沿途天气，还可以根据你的表现调整敌人的数量，效果和音效。根据你的游戏习惯，《求生之路 2》保证每次游戏都能有一个令你满意的，充满挑战的游戏体验。

游戏特色：

• 这是《半条命》、《传送门》、《军团要塞》和《反恐精英》等经典游戏的缔造者的新一代合作游戏。
• 超过 20 种新武器和物品，超过10种近战武器 — 斧头、电锯、平底锅、棒球棍 — 让你和僵尸亲密接触。
• 新的生还者。新的故事。新的对白。
• 5 个辽阔的战役，可以在合作，对抗和生还者模式中进行。
• 一个新的多人游戏模式。
• 每个战役都有专门一种“不寻常”的普通感染者。
• 人工智能导演系统 2.0：先进技术让《求生之路》拥有独特的游戏体验 — 根据玩家的表现调整敌人数量、效果和音乐。人工智能导演系统 2.0 是《求生之路 2》的特色，它加强了导演系统的能力，能安排布局、物体、天气和灯光来表现出一天的时间变化。
• 统计，排名，和奖励系统能促使玩家们进行协助。

最低配置:
操作系统: Windows® 7 32/64-bit / Vista 32/64 / XP
处理器: Pentium 4 3.0GHz
内存: 2 GB RAM
显卡: Video card with 128 MB, Shader model 2.0. ATI X800, NVidia 6600 or better
DirectX 版本: 9.0c
存储空间: 需要 13 GB 可用空间
声卡: DirectX 9.0c compatible sound card
推荐配置:
操作系统: Windows® 7 32/64-bit / Vista 32/64 / XP
处理器: Intel core 2 duo 2.4GHz
内存: 2 GB RAM
显卡: Video Card Shader model 3.0. NVidia 7600, ATI X1600 or better
DirectX 版本: 9.0c
存储空间: 需要 13 GB 可用空间
声卡: DirectX 9.0c compatible sound card
游戏视频：

游戏截图：

说明：winRAR解压，安装游戏记得全英文路径，关杀毒软件哦。

steam：https://store.steampowered.com/app/550/Left_4_Dead_2/

重大更新 来自：Left 4 Dead 2 已发布 9月25日周五 “最后一刻”更新 历经数年的社区自制大规模更新

The Last Stand Community Update has been released!
Visit https://www.l4d.com/laststand/ for all of the details.

Summary of the more than 1000 changes across the entire game:

– Fixed an exploit that could lag or crash a server by spawning infinite pistols.
– Rate-limit commands to prevent client command DOS attacks against servers.
– Fixed the ability to bypass the damage filter on the gas station’s rolling door by going idle.
– Fixed avoiding damage from the charger by toggling in/out of idle while being body slammed.
– Fixed clearing the boomer screenspace effect by taking a break.
– Fix griefing exploit where a survivor would fire the grenade launcher and then switch to spectator to skip the friendly-fire check
– Record the team of a vote caller at the time the vote is called, so if the caller disconnects the other players can still have their votes checked against the caller’s team. Fixes team-based votes locking out new voters if the caller disconnects.
– Build a map load command on the server instead of directly executing the command that’s received as part of the server reservation packet. Fixed potential server takeover exploit.
– Fixed SI ghosts playing jump landing sounds
– Prevent players from joining the survivor team as a character already occupied by a human player.
– Marked “voice_all_icons” (used for testing) as a cheat command. Clear the voice state whenever the value changes so voice bubbles don’t stay visible when switching between cheat enabled/disabled games.
– Marked cl_survivor_light_* cvars as cheats.
– Made survivor_teammatefocus_* convars replicated, so they can still be used as a legitimate way to play but are forced to be consistent for all clients.
– Removed a three-second window where an infected player could force a faster transition from the observer state to the ghost state by pressing a key.
– Don’t spam open/close door client commands while the door is in the process of opening or closing.

– Fixed spawn areas permanently excluded from spawn set when a survivor dies, idles, or changes character.
– Fixed mobs unable to spawn if survivors stand in specific areas during a finale.
– Always restore the default pain pills decay rate when the director resets.
– Fixed the L4D1 survivor gestures not playing on dedicated servers.
– Allow SI to destroy breakables in finale areas during survival and scavenge modes once the round begins.
– Fixed breakables sometimes failing to unblock the nav when they break.
– Don’t stumble the charger if the charge attack starts while already in contact with the victim.
– Fixed L4D1 survivors not selecting their canonical preferred weapons when scavenging.
– Allow survivors to pick up ammo while fighting a tank or in close combat if they are less than 40% full.
– Bots will use pills only if health
– Bots consider health to be critical at
– Fixed a few cases where specials may choose to wait in an ambush position when the game mode says they should be assaulting the survivors
– If a chase path that’s trying to lead the target fails, fall back to a non-leading path. Leading paths that run off a cliff aren’t always handled properly and can cause the target to be treated as unreachable.
– Revised the logic for fitting both tank and witch spawn locations into the flow. Previously they would frequently collide and the witch would get culled; now they should always find some combination of spawn locations that fit the within the map constraints.
– Fixed the director’s “arc value” not always handling campaigns shorter than five maps correctly.

– Allow competitive achievements (versus, scavenge) to also be earned in Versus Survival.
– Incapped survivors are counted as escaped if they’re in the rescue vehicle.
– Enabled CS weapons for all players
– Viewmodels use the skin value of the world pickup model, same as gas cans.
– When a weapon is holstered, transfer the current skin to the addon model.
– Clear the viewmodel fire layer when performing a melee attack to fix the stuck helping hand bug.
– Fixed the mp5’s melee shove canceling its reload animation.
– Turned on boomer gibs by default, except in low violence mode.
– Restored burn skins for infected
– Fixed witch kills getting recorded as common zombie kills in the stats.
– Increased “ammo_shotgun_max” from 56 to 72

– Removed “Single Player” option from the main menu carousel.
– Enabled the “Private Game” option in lobby permissions.
– Added a rematch vote to the end of versus survival matches.
– Fixed voice chat not working in lobbies.
– No vote cooldown in singleplayer modes
– Allow “Change all-talk” vote in versus survival mode.
– cl_downloadfilter defaults to “none”
– Fixed genericpanellist not drawing panels when they extended beyond both the top and bottom of the frame.
– Suppress warnings about func_orator not having a model

AND MORE
– Hundreds of fixes and tweaks to animations, models, dialog, map layouts and exploits.

Steam Input
– Added a Joystick style action that can receive console-style aim assist
– Fixed the “Turn Around” action
– Added a “Reset Camera” action for use with motion controls
– Rescaled mouse sensitivities so that the adjustment sliders in the configurator have more useful range
– Fix controller input on Orders/Response Quick Menu’s
– Fixed controllers not being able to skip to the end of the post-campaign stats scrawl

SCRIPTING AND MODDING

– CHANGES
– Run mapspawn_addon.nut for all active addons after the base version runs.
– Run scriptedmode_addon.nut and director_base_addon.nut for all active addons after the base version runs.
– Support for new population file overrides for the base game mode. So the load order is now “population.txt”, “population_.txt”, “population_.txt”, which each script optionally overriding place definitions from the previous files.
– Any time the addon load order changes, both the director and the nav mesh immediately refresh their population data. Fixes campaigns using the wrong populations and errors from precaching the wrong models.
– Func_nav_attribute_region and point_nav_attribute_region will remove attributes if the spawn key “remove_attributes” is set to true.
– Allow scripts to force the witch bride spawn, regardless of the variant setting
– “InterceptChat” can return false to prevent sending the message to other clients.
– “DamageType” field of “ScriptAllowDamage” is now read/write, so it can be used to change the damage type.
– Fixed being unable to create subdirectories in /left4dead2/ems
– New game event “player_left_safe_area”, called every time the first survivor leaves the start area regardless of map number, restarts, etc.
– Added the userid of the offending player to “triggered_car_alarm” game event.
– Fixed script funcs SetContext and SetContextNum not recognizing that a duration of zero means ‘forever’. To avoid breaking existing scripts, the ‘forever’ parameter is now -1.
– Track convars set from script so they can be reverted when the session ends.
– New gender “police”, can spawn & drop tonfas like the riot control commons, but doesn’t have the protective gear.
– Added a new keyfield “weaponskin” to item and weapon spawners to set the skin of the spawned item or weapon. Supported by “weapon_item_spawn”, “weapon_melee_spawn”, “weapon_scavenge_item_spawn”.
– Removed spurious parenthesis from “ToKVString” and “_tostring” script functions
– Director now calls into an optional script function “GetCustomScriptedStageProgress” during FINALE_CUSTOM_SCRIPTED stages. The function should return a value from 0-1 to indicate the completion percentage of the stage. The default time-based completion percentage is passed in as a parameter.
– Added weapon spawners and configurable spawner entries for CS weapons.

– NEW FUNCTIONS
CBaseEntity
GetMaxHealth
SetMaxHealth
GetModelName
SetModel( modelname )

CBaseAnimating
GetAttachmentBone, Get the named attachement’s parent bone index
GetAttachmentOrigin, Get the attachment id’s origin as vector
GetAttachmentAngles, Get the attachment id’s angles as p,y,r vector
GetBoneOrigin, Get the bone id’s origin vector
GetBoneAngles, Get the bone id’s angles as a p,y,r vector
LookupActivity, Get the named activity index
LookupBone, Get the named bone index
LookupSequence, Looks up a sequence by sequence name or activity name
SetSequence, Set a sequence by id
ResetSequence, Reset a sequence by id. If the id is different than the current sequence, switch to the new sequence
GetSequence, Get the current sequence id
GetSequenceActivityName, Get the activity name for a sequence by id
GetSequenceName, Get a sequence name by id
GetSequenceDuration, Get a sequence duration by id
GetBodygroup, Get a bodygroup by id
GetBodygroupName, Get the bodygroup id’s name
FindBodygroupByName, Find a bodygroup id by name
GetBodygroupPartName, Get name by group and part
SetBodygroup
GetModelScale
SetModelScale, (scale, change_duration) Changes a model’s scale over time
SetPoseParameter, (id, value) Sets a pose parameter value

CBaseFlex
GetCurrentScene, Returns the instance of the oldest active scene entity (if any).
GetSceneByIndex, Returns the instance of the scene entity at the specified index.
PlayScene, Play the specified .vcd file.
LookupAttachment
IsSequenceFinished

CTerrorPlayer
DropItem, Make the player drop an item/weapon
SwitchToItem, Make the player switch to an item/weapon
SnapEyeAngles, Sets the view angles
GiveItemWithSkin( itemname, skin )

CTerrorWeapon
GetMaxClip1
GetMaxClip2
GetDefaultClip1
GetDefaultClip2
Clip1
Clip2
SetClip1
SetClip2
GiveDefaultAmmo
Reload

CDirector
GetGameModeBase
GetMapName
GetSurvivorSet

ResponseCriteria
GetValue, ( entity, criteriaName ) – returns a string
GetTable, ( entity, table ) – returns a table of all criteria
HasCriterion, ( entity, criteriaName ) – returns true if the criterion exists

CBaseTrigger
Disable
Enable
IsTouching, ( entity )

Global
DebugDrawBoxAngles, Draw a debug oriented box (cent, min, max, angles(p,y,r), vRgb, a, duration)
ClientPrint, Print a client message
PrecacheSound
EmitAmbientSoundOn, Play named ambient sound on an entity.
StopAmbientSoundOn, Stop named ambient sound on an entity.
GetSoundDuration, Returns float duration of the sound. Takes soundname and optional actormodelname.
SetFakeClientConVarValue, Sets a USERINFO client ConVar for a fakeclient
ScreenShake, Start a screenshake with the following parameters. vecCenter, flAmplitude, flFrequency, flDuration, flRadius, eCommand( SHAKE_START = 0, SHAKE_STOP = 1 ), bAirShake
ScreenFade, Start a screenfade with the following parameters. player, red, green, blue, alpha, flFadeTime, flFadeHold, flags
PrecacheModel
IsModelPrecached
IsSoundPrecached
IsDedicatedServer
GetListenServerHost
HasPlayerControlledZombies
“AllowFallenSurvivorItem”, optionally reject items from spawning on the fallen survivor.
ShouldPlayBossMusic

– SCRIPT ENTITIES
“script_func_button” – spawn a func_button from script via extents.
“script_clip_vphysics” – structured the same as other script-based trigger entities.
“script_nav_attribute_region” – uses extents instead of brushes.

– RESPONSE RULES
– Added survivor criteria “InRescueVehicle”, set to 1 when the vehicle has arrived and the survivor is inside.
– Added “NumberOfTeamAlive”, “NumberOfTeamIncapacitated”, and “NumberOfTeamDead” to the set of response rules global criteria.

– MISSION KEYS
– Added a mission key “allow_boss_mix” to the “versus_boss_spawning” block to bypass a restriction on having both a tank and a witch in the first and last maps of a campaign.
– Created variant keys to set a different character model
HunterVariant
SmokerVariant
BoomerVariant
BoometteVariant
SpitterVariant
JockeyVariant
ChargerVariant
WitchVariant

• 全新动画
• 《反恐精英：起源》的武器正式在所有服务器实现。
• 以前未使用对白已在游戏中还原。
• PVP 增强及修复。
• 已将对抗生还者模式添加至主菜单。
• 带血腥内容的 L4D1 普通感染者模型。
• 全新突变：火箭发射模式和 Tank 通关模式。
• UI 优化。
• 海量漏洞和漏洞利用修复。

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