Zombie Panic: Source is a co-op oriented Survivor Vs Zombie multi-player survival horror modification for HL2. While our main priority is to make the mod as fun to play as possible, ZP:S plans to greatly expand on the core features of "Zombie panic" For HL1, with new features, impressive visuals, and atmospheric maps. More importantly ZP:S will not force players to fend against dumb and predictable AI and keep the same intense thrill of surviving against intelligent and persistent player controlled zombies as the original.

Posted | Game Title | Author
Contagion - Biotec, Stone Creek, and more in July Update!
Contagion

Contagion - Biotec, Stone Creek, and more in July Update!

Aug 1, 2014 Contagion 3 comments

The much anticipated remake of Zombie Panic: Source's Biotec for Contagion was released today! We also acquired the most popular Workshop map Stone Creek...

Contagion - Build 4366 Out Now, Release date announced, and more!
Half-Life 2

Contagion - Build 4366 Out Now, Release date announced, and more!

Feb 24, 2014 Zombie Panic: Source 4 comments

It is with great pleasure that we can finally and confidently announce our Full Release and depart "Early Access" in today's News Post as well as share...

Contagion - Update Build 4209 & FF Ep16
Half-Life 2

Contagion - Update Build 4209 & FF Ep16

Feb 7, 2014 Zombie Panic: Source 8 comments

We're reaching the hilltop and are moving towards a steadier pace of releases... Big releases! This one in particular is one of the major ones for the...

Contagion - Update with new weapon, optimization, and restructuring
Contagion

Contagion - Update with new weapon, optimization, and restructuring

Nov 12, 2013 Contagion 13 comments

Contagion which is now on Steam as "Early Access" received a large update focusing on restructuring the build using VPKs cutting it down 1GB, with other...

INDIEpendence Day Giveaway
Half-Life 2

INDIEpendence Day Giveaway

Jul 3, 2013 Zombie Panic: Source 6 comments

We've hit 3,000+ Members on our Official Steam Group thanks to all of our fans support and to celebrate that accomplishment as well as Independence Day...

Contagion's Steam Shop, Release Announcement, and Official Group!
Half-Life 2

Contagion's Steam Shop, Release Announcement, and Official Group!

May 18, 2013 Zombie Panic: Source 12 comments

Hot off the presses! We have some updates on the happenings over at Monochrome LLC including: Contagion's Steam Shop, Fall 2013 Release Announcement...

ZPS 2.2 Release available on Desura!
Half-Life 2

ZPS 2.2 Release available on Desura!

Apr 26, 2011 Zombie Panic: Source 8 comments

Zombie Panic: Source v2.2 (with Hotfix fixing previous crashes) is now live on both Desura and Steam so download and enjoy!

ZPS Updates - Sneak Peek
Half-Life 2

ZPS Updates - Sneak Peek

Aug 13, 2010 Zombie Panic: Source 20 comments

It's been too long since Zombie Panic: Source last posted news and with the team filling up again and other devs returning, we felt it necessary to post...

Official ZPS Comic
Half-Life 2

Official ZPS Comic

Feb 8, 2010 Zombie Panic: Source 20 comments

An artists interpretation of where it all began for Eugene, Marcus, and Jessica...

Half-Life Creations & INX Present "Got Brains" ZPS Competition
Half-Life 2

Half-Life Creations & INX Present "Got Brains" ZPS Competition

Jan 31, 2010 Zombie Panic: Source 7 comments

Half-Life Creations is holding a INX Sponsored ZPS Competition titled "Got Brains"

ZP:S and the Top 100 Mods of the Year
Half-Life 2

ZP:S and the Top 100 Mods of the Year

Jan 9, 2010 Zombie Panic: Source 8 comments

Phase 2 is upon us and everyone is excited to see who's going to win this years mod of the year awards...

Happy Birthday ZPS! 2 Years Old Today!
Half-Life 2

Happy Birthday ZPS! 2 Years Old Today!

Dec 28, 2009 Zombie Panic: Source 23 comments

It was exactly 2 years ago today that Zombie Panic: Source was released to the public and we have ModDB to thank for a lot of its success...

ZPS Shreddingfield Walkthrough Video
Half-Life 2

ZPS Shreddingfield Walkthrough Video

Oct 30, 2009 Zombie Panic: Source 5 comments

A walkthrough of zpo_shreddingfield that is both educational and hilarious. Thanks to drrobot, okeido, galactic, and daan who put the montage together.

ZPS v2.0 Available Now on Steam!
Half-Life 2

ZPS v2.0 Available Now on Steam!

Oct 28, 2009 Zombie Panic: Source 21 comments

Zombie Panic! Source v2.0 is now available through Steam. We're also announcing this years Official ZPS Halloween Prop Modeling Contest!

ZPS Release almost here and Halloween Contest coming to a close
Half-Life 2

ZPS Release almost here and Halloween Contest coming to a close

Oct 17, 2009 Zombie Panic: Source 29 comments

ZombiePanic! Source v2.0 Release almost here and our Halloween Contest is coming to a close.

ZPS v2.0 Sneak Peak + NOESIS Interactive Details
Half-Life 2

ZPS v2.0 Sneak Peak + NOESIS Interactive Details

Oct 6, 2009 Zombie Panic: Source 3 comments

Showing you a sneak peak at ZPS v2.0 as well as an update to this years Official ZPS Halloween Prop Modeling Contest.

ZPS v2.0 Release Date and Halloween Contest
Half-Life 2

ZPS v2.0 Release Date and Halloween Contest

Oct 2, 2009 Zombie Panic: Source 13 comments

Announcing Zombie Panic! Source v2.0 Release Date and to celebrate 5 years of Zombie Panic as well as Halloween we're holding an Official Halloween Prop...

Developer Stories 3
Half-Life 2

Developer Stories 3

Jul 17, 2009 Zombie Panic: Source 8 comments

A short story about the development of ZPS. This story is about the time surrounding our release.

ZPS 1.6 is out now!  Get it via Steam!
Half-Life 2

ZPS 1.6 is out now! Get it via Steam!

Jun 26, 2009 Zombie Panic: Source 15 comments

We just released 1.6 to Valve. This includes a hardcore option, as well as dual slot weapons and a few other features.

ZPS "Mappers Remix" Club Zombo Winners
Half-Life 2

ZPS "Mappers Remix" Club Zombo Winners

May 29, 2009 Zombie Panic: Source 9 comments

The Official Zombie Panic: Source "Mappers Remix" Level Design Competition ended and winners for Club Zombo selected.

Official ZPS "Mappers Remix" Competition comes to a close
Half-Life 2

Official ZPS "Mappers Remix" Competition comes to a close

May 21, 2009 Zombie Panic: Source 6 comments

The Official Zombie Panic: Source "Mappers Remix" Level Design competition has finished and now the entries will be reviewed and winners announced shortly...

Developer stories #2 (Level design - Shreddingfield)
Half-Life 2

Developer stories #2 (Level design - Shreddingfield)

May 5, 2009 Zombie Panic: Source 7 comments

Here is another ZPS developer story to give you insight as to what kind of challanges and tasks our developers might have to face in daily modding life.

Zombie Panic! Source 1.5.2 update is now live on Steam!
Half-Life 2

Zombie Panic! Source 1.5.2 update is now live on Steam!

Apr 7, 2009 Zombie Panic: Source 23 comments

A minor release is now available via steam, including map updates, minor exploit fixes, and an option to enable the old popular collision system!

ZP:S v1.5.1 Patch Released!
Half-Life 2

ZP:S v1.5.1 Patch Released!

Feb 6, 2009 Zombie Panic: Source 12 comments

Zombie Panic: Source version 1.5.1 patch was released today fixing map, weapon, and console command exploits.

Official Limited Edition ZPS T-Shirt Design Contest
Half-Life 2

Official Limited Edition ZPS T-Shirt Design Contest

Feb 3, 2009 Zombie Panic: Source 3 comments

After years of fans asking for ZP merchandise, we're finally doing something about it and asking the community to participate.

Zombie Panic! Source 1.5 Now available via steam!
Half-Life 2

Zombie Panic! Source 1.5 Now available via steam!

Jan 29, 2009 Zombie Panic: Source 34 comments

Announcing the release of ZPS 1.5 via steam! Go experience the new barricade system, and our latest map updates, as well as ZPO_Harvest!

ZP:S v1.5 available January 28th!
Half-Life 2

ZP:S v1.5 available January 28th!

Jan 26, 2009 Zombie Panic: Source 49 comments

Announcing the release date and details of Zombie Panic: Source v1.5 which will be available on Steam January 28th!

January Media and Developer Discussion
Half-Life 2

January Media and Developer Discussion

Jan 17, 2009 Zombie Panic: Source 14 comments

Zombie Panic: Source January media release followed up with a chance to ask the developers the current progress and future of ZPS.

Official ZPS Mappers Remix Competition
Half-Life 2

Official ZPS Mappers Remix Competition

Jan 10, 2009 Zombie Panic: Source 5 comments

The Official ZPS "Mappers Remix" Level Design Competition. 2 Maps to choose from, 2 chances to win, $600 to the winners!

Zombie Panic! Source 1.4.1 now available via Steam!
Half-Life 2

Zombie Panic! Source 1.4.1 now available via Steam!

Dec 2, 2008 Zombie Panic: Source 14 comments

We are proud to announce that 1.4.1 is now available from Steam! This light update to 1.4 includes mostly tweaks and bugfixes, as well as a few minor...