What changed in Killing Floor in 2009

KF-Icebreaker, created by Damien Laurent and Yoann Guilloud, wins the $10,000 grand prize in the Grindhouse Mapping Contest.

A free total conversion mod for Killing Floor featuring team-based futuristic combat.

All owners of Killing Floor receive 2 Guest Passes.

A free total conversion mod for Killing Floor featuring team-based futuristic combat.

KF-Crash, created by Michael Hewish and Corey Sine, wins Logitech peripherals as the third-place entry.

KF-Departed, created by Jeroen van Wamelen and Jessy De Lannoit, wins an Nvidia 3D Vision bundle and Logitech peripherals.

KF-Icebreaker, created by Damien Laurent and Yoann Guilloud, wins the $10,000 grand prize for its ambitious and visually stunning design.

Red Orchestra is on sale for $4.99, a 50% discount from the regular price of $9.99.

KF-Departed, created by Jeroen van Wamelen and Jessy De Lannoit, wins an Nvidia 3D Vision bundle and Logitech gaming peripherals.

2 Guest Passes for all owners of Killing Floor.

Four stunning new maps for Killing Floor from the winners of the Grindhouse Custom Map Making Competition.

Four stunning new maps for Killing Floor from the winners of the Grindhouse Custom Map Making Competition.

KF-Crash, created by Michael Hewish and Corey Sine, wins Logitech gaming peripherals as a prize.

Several runners-up received Logitech peripherals for their entries in the mapping competition.

Several runners-up including KF-Suburbia and KF-RaccoonInternationalAirportSP receive Logitech keyboards as prizes.

Resolved issue preventing Windows 2000 users from playing Killing Floor.

Addressed hitching and freezing issues when encountering a specimen for the first time.

Resolved issue preventing Windows 2000 users from playing Killing Floor.

Addressed hitching and freezing issues when encountering a specimen for the first time.

Further reduced the memory utilization in Killing Floor.

Fixed exploits on KF-Bedlam, KF-BioticsLab, KF-Farm, KF-Manor, KF-Offices, and KF-Wyre.

Further reduced the memory utilization in Killing Floor.

Fixed exploits on KF-Bedlam, KF-BioticsLab, KF-Farm, KF-Manor, KF-Offices, and KF-Wyre.

Turning off the Page File can fix long loading times for machines with 3+ GB of RAM.

Some players have reported improved load times and performance by disabling their second monitor.

Adding an exception for the Killing Floor directory in Anti-Virus can improve load times.

Turning off the Page File can fix long loading times for machines with 3+ GB of RAM.

Using defrag tools like MyDefrag or Ultimate Defrag can help improve load times by optimizing file placement.

Using defrag tools can help ensure Killing Floor's files are not spread out across the hard disk.

Adding an exception for the Killing Floor directory in Anti-Virus can improve loading performance.

Some players have reported improved load times and performance by disabling their second monitor.

Fixed pipe bombs appearing to explode when they went out of view while playing online.

Fixed the zeds not doing the burning behavior as well as continuously burning when they shouldn't.

Fixed exploits and bugs in maps Farm, BioticsLab, Manor, Wyre, Foundry, and Offices.

Fixed an exploit where picking up dropped weapons would give too much money when sold.

Fixed the zeds not doing the burning behavior and continuously burning when they shouldn't.

Fixed pipe bombs not making an explosion sound online sometimes when not seen exploding.

Fixed pipe bombs not making an explosion sound online sometimes when not seen exploding.

Fixed high level Firebugs catching on fire even though they don't take fire damage.

Fixed vulture head textures sometimes appearing when players were taking damage/getting shot at.

Fixed vulture head textures sometimes appearing when players were taking damage/getting shot at.

Fixed high level Firebugs catching on fire even though they don't take fire damage.

Added a system to prevent taking out the Patriarch instantly with a group of pipe bombs and removed the ability to drop pipe bombs to prevent stockpiling.

Fixed exploits and bugs in maps Farm, BioticsLab, Manor, Wyre, Foundry, and Offices.

Fixed a failure to switch to a new weapon when throwing the pipebomb while playing online.

Fixed a failure to switch to a new weapon when throwing the pipebomb while playing online.

Fixed an exploit where picking up dropped weapons would give too much money when sold.

Fixed pipe bombs appearing to explode when they went out of view while playing online.

Added a system to prevent taking out the Patriarch instantly with a group of pipe bombs and removed the ability to drop pipe bomb inventory items.

Reduced memory usage and improved loading times.

Resolved issues with achievements that weren't working, including a reset issue with Mr. Perky.

Addressed an exploit that allowed players to buy weapons at a discount and sell them for profit.

Addressed an exploit that allowed players to buy weapons at a discount and sell them for profit.

Fixed inaccuracies in the menu descriptions for Perk levels.

Fixed inaccuracies in the menu descriptions for Perk levels.

Resolved issues with achievements not working correctly.

Reduced memory usage and improved loading times.

The game will now attempt to open the proper ports on your router when you host a Listen server, thus making matchmaking easier.

This enables users with Audigy cards, Vista, and the proper drivers to now have surround sound.

Maps can now be added to the whitelist faster.

The game will now attempt to open the proper ports on your router when you host a Listen server, thus making matchmaking easier.

This enables users with Audigy cards, Vista, and the proper drivers to now have surround sound.

Maps can now be added to the whitelist faster.

The update fixes the color correction system, which may affect mappers.

The beta includes fixes for stock maps.

The update fixes the color correction system, which may be relevant for mappers.

The beta includes fixes for stock maps.

Added support for Universal Plug'n'Play for hosting servers.

Players and server admins can join an Open Beta Program for future changes to the game.

Players and server admins can join an Open Beta Program for future changes to Killing Floor.

A new map white-listing system that allows quicker updates to the white list.

Fixes for various exploits found on all stock maps.

Fixes for exploits on all stock maps included in the Open Beta.

New support for Universal Plug'n'Play for hosting servers included in the Open Beta.

Introduction of a new map white-listing system for quicker updates.

Introduction of Surround Sound support for Windows Vista in the Open Beta.

New support for Surround Sound on Windows Vista.

The retail version includes the 'Heavy Metal' Content Pack featuring a new map and new weapons.

The boxed version of Killing Floor includes two additional playable characters.

Wave 1 of the competition has concluded with over 50 maps submitted, with the next phase ending on 2nd October.

The retail version includes the free 'Heavy Metal' Content Pack featuring a new map and new weapons.

Wave 1 of the competition has concluded with over 50 community maps submitted.

The retail version of Killing Floor includes 2 bonus playable characters.

Adjusted settings for some Specimens when on fire.

Free update includes new weapons, a new map, and additional features.

Resolved issues with 'The Long War', 'The Hard War', and 'The Completely Suicidal War' achievements.

Flashlight now looks and acts more realistically.

Introduced the AK-47 assault rifle and Katana melee weapon.

Flashlight now looks and acts more realistically.

Firing sound of the Bullpup adjusted to have more bass.

A new map set in a Horzine manufacturing facility with multiple levels.

Addressed known exploits on KF-Farm, KF-Manor, KF-Offices, and KF-WestLondon.

Firing sound now has more bass.

Introduced the AK-47 assault rifle and Katana melee weapon.

Free update includes new weapons, a new map, and additional features.

Prevented the Patriarch boss from spawning too close to players.

See forums for more details.

Added smoke effects to the Scrake's Chainsaw.

Addressed known exploits on KF-Farm, KF-Manor, KF-Offices, and KF-WestLondon.

Specimens now behave differently when burning, enhancing flamethrower effectiveness.

Prevented boss from spawning too close to players.

Resolved issues with 'The Long War', 'The Hard War', and 'The Completely Suicidal War' achievements.

Specimens now behave differently when burned, enhancing flamethrower effectiveness.

A new map set in a Horzine manufacturing facility.

Fixed servers with a maximum of more than 6 players allowing Perks to progress.

Fixed more exploits in KF-Manor, KF-BioticsLab, and KF-WestLondon.

Limited the number of respawns to once per wave to stop exploiters from getting extra money and guns by suiciding.

Added settings for the Voice Message system to reduce the amount of messages played.

Improved usability of filter system by moving it directly into the Internet Server Browser area.

Added a Friends tab to the Multiplayer menu which allows players to quickly see which servers their Steam Friends are playing on.

Fixed a common crash involving Sprite Emitters, generally caused by using a Flame Thrower and/or multiple Grenades.

Fixed Clots not grabbing players that do not have the Berserker Perk selected.

Fixed a common crash involving Sprite Emitters, generally caused by using a Flame Thrower and/or multiple Grenades.

Fixed Clots not grabbing players that do not have the Berserker Perk selected.

Fixed players with Level 5 Perks not always getting their default weapon when they spawn.

Fixed players with Level 5 Perks not always getting their default weapon when they spawn.

Fixed more exploits in KF-Manor, KF-BioticsLab, and KF-WestLondon.

Limited the number of respawns to once per wave to stop exploiters from getting extra money and guns by suiciding.

Added a Friends tab to the Multiplayer menu which allows players to quickly see which servers their Steam Friends are playing on.

Fixed servers with a maximum of more than 6 players allowing Perks to progress.

Added settings for the Voice Message system to reduce the amount of messages played.

Improved usability of filter system by moving it directly into the Internet Server Browser area.