IOS is a first and third person online multiplayer soccer game that aims to be the online equivalent of great console soccer games but with a true multiplayer teamplay experience. IOS requires Half-Life. You can join a public game of IOS at any time during a match or you can create your own. When you join the server you will be asked to select a team then you can select the position that you wish to play.

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IOS is five!

IOS is five!

News

IOS is five years old! I've posted some early development pictures to celebrate! Thanks to everyone who has played and supported the mod over the last...

Mods of 2006 - Player's Choice

Mods of 2006 - Player's Choice

Feature 81 comments

80,000 votes. 4,000 mods. Over the course of 2 months, gamers from across the globe came together to decide which mods rank as the epitome of what our...

Mods of 2005

Mods of 2005

Feature 82 comments

This competition needs no introduction. For the past month the community has been voting for their favorite mods. The votes were cast and the results...

IOS Beta 4.0a Server Patch released!

News

We are pleased to announce the release of IOS Beta 4.0a. This is a server only patch. You only need to install this if you run a server or host lan games...

IOS Beta 4.0 for Half-Life has been released!

News 1 comment

IOS Beta 4.0 for Half-Life has been released! Windows Full (102M) (UK) (USA) Linux Full (103M) Change Log: Added mp_clubteams 0=international only, 1=both...

IOS Tribute Video

News

Rebrov has created a cool new video celebrating IOS, it's community, teams and winning the ModDb "Sports Mod of the Year 2004".You can...

Mods of 2004

Mods of 2004

Feature 75 comments

After 2 months, 8 thousand votes and 1.4 million mod profile visitors, the 2004 Golden Spanner Mod of the Year Awards have been decided, by you the visitors...

IOS Beta 4.0 Video! (Half-Life 1)

News 3 comments

I've created a video for Beta 4.0. It shows a few of the new features like improved animation, improved corners, improved free kicks and improved...

IOS Beta v3.0 Released!

News 6 comments

We are pleased to announce the release of IOS Beta 3.0! Download IOS Beta 3.0 for Windows (59,618,147 bytes) from FilePlanet Download IOS Beta 3.0 for...

IOS Beta 3.0

News 1 comment

Beta 3.0 should be released in a few days. There are 24 football grounds plus the USA team has been added. Black Cat has created a totrial map that will...

Mods of 2003

Mods of 2003

Feature 6 comments

With 2003 almost behind us, it is time to look at the year that was 'modification explode' and scope out what captured gamers imaginations, hearts and...

Online Soccer Beta 3.0 features and maps

News

Some of the new features that will be included in IOS Beta 3.0 are: Penalty Shootout mode. "Power Shot". Bots (player bots for practice and to help learn...

IOS Beta 3 Maps

News

International Online Soccer Beta 3 Maps. Here are some shots of just some of the new maps that will be included in IOS Beta3. All these maps were created...

IOS Beta v2.0 Released!

News

IOS Beta v2.0 Released! Visit for more details and download links. IOS now features fifteen international teams and nine football stadia plus many other...

International Online Soccer Q/A

News 2 comments

The International Online Soccer Q/A is up for your reading pleasure and if you love soccer you will love the mod. modDB.com: How long have you been working...

International Online Soccer

International Online Soccer

Feature 3 comments

As the profile reads on the IOS page "An Online soccer game for Half-Life'. This is a understatment. This mod is fun and different from any...

IOS Beta 1.0a Server Patch

News

You only need this patch if you run a server, but I'd recommend it to everyone just to be safe. This patch replaces the server code only, it will not...

IOS Beta v1.0 Released!

News 1 comment

IOS Beta v1.0 has been released! Visit for a list of download links. Or visit for more info.

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Half-Life
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