The purpose of this mod is create an atmosphere of tension befitting of an HP Lovecraft story. Shadows play a huge role and light even effects certain monsters. There are advanced and difficult puzzles mixed with some tense combat. Ammo will be scarce, so the few guns that are found will be quite precious.

The setting takes place on an island, mostly within a cave. The player will encounter awesome sights such as subterranean rivers flowing with deadly liquids, an underground pyramid of the Aztecs, and much more!

Special Features Making This Mod Different:

The mod is EXTREMELY long. Over the course of three years it grew so much that we estimate it to be somewhere in the area of 10+ hours of play. This puts it's length as longer than most commercial titles.

Get a different ending based on how well the player explores and the choices made.

An emphasis on physics puzzles mean each time they are completed it will be different.

A tense atmosphere where the player can be attacked at any second, whether mentally or physically.

A custom map system keeping the player in the game and on their toes.

More than one way to complete an objective means that if one way becomes blocked, there should be another way to obtain the goal.

Custom weapons fitting the periods of history in the mod.

Music created specifically for the mod.

Different creative ways to die keep the playthrough fresh.

Multiple difficulties

Fearsome new enemies influenced by Cthulhu.

Created by only two dedicated individuals with a desire for quality with some help from friends and the internet.

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Progress Report: AI

1 year ago News 1 comment

One of the reasons why the game is taking so long has been the AI. To anyone who hasn't dealt with it, it is a nightmare. There is a reason why many commercial games have broken AI and tons of bugs. Still, I digress, let me tell you about our own AI.

When I first started working on the project AI was a problem that was very significant. Thankfully over the last few months I have hammered out all the problems allowing the AI Navigation to be calculated without errors. This has been an eternal blessing as it removed most of the problems we had been having.

In the screen below you can see how the AI points have to be individually placed because of the complicated and narrow interior which the AI has to interact with.

AI PointsAI Graph

The player is going to have to run as there are far too many attackers to engage. This meant that I had to make the AI very smart and not predictable. This was accomplished by a large amount of code and the layout you see above. The AI has the capability to leap gaps, hurdle walls and get around other objects in order to hunt the player.

This first chapter will hopefully remain the most challenging area to develop as the other zones have limited amount of AI to worry about. I am expecting the development of the areas to go much faster than chapter one.

I hope you enjoyed this look into the AI of the Island of Cthulhu and keep a look out for the video that is coming soon that will demonstrate their advanced smart capabilities.

Return to the Island

Return to the Island

1 year ago News 2 comments

Information about the development hurdles the mod has faced over the past few years.

Back to work!

Back to work!

1 year ago News 3 comments

That's right! After taking a forced hiatus from the mod I am back in business!

The Island of Cthulhu Part One Release

The Island of Cthulhu Part One Release

3 years ago News 2 comments

A new version of The Island of Cthulhu mod part one is available for download at It includes about an hour of game play including...

The Necronomicon

The Necronomicon

4 years ago News 9 comments

Our team has been optimizing and finalizing the last parts of the mod. The Necronomicon is a fictional grimoire appearing in the stories by horror writer...

RSS feed Downloads
The Island of Cthulhu Part 1 - OLD VERSION

The Island of Cthulhu Part 1 - OLD VERSION

2 years ago Full Version 3 comments

This is the old version. A much improved new one will be out soon. I urge you to wait for the new one.

Post comment Comments  (10 - 20 of 94)
MosquitoMan55 Sep 15 2013 says:

Can ot be played with Crysis Warhead?

+1 vote     reply to comment
MosquitoMan55 Sep 18 2013 replied:


0 votes     reply to comment
epiphany Sep 20 2013 replied:

Sorry no Warhead support, stay tuned part 2 is not dead

+1 vote     reply to comment
dorshushan12 Dec 12 2012 says:

am i can play with nanosuit

0 votes     reply to comment
evilmrsatan Creator
evilmrsatan Dec 7 2012 says:

Check out the download for part one at

+3 votes   reply to comment May 8 2012 says:

In the Mod-folder might i add, there isn't any quiklaunch icon when items are unpacked either, or am i missing something ???

+1 vote     reply to comment
epiphany Mar 6 2012 says:

The website is back and has a playable link to our game Cthulhu Island Part 1. It is a big torrent file so help seed. Anyone that doesn't believe in Cthulhu's existence will be punished.

+1 vote     reply to comment
scapulator Apr 11 2012 replied:

is that the final release or a demo?

+1 vote     reply to comment
epiphany Apr 12 2012 replied:

I would call it a prologue it is less than a hour. There will be a small update to part one and trailer very soon. Have you tried it? Part two is not far off and will contain the meat of the game include a much more active role for the insanity system which is included in part one to some degree but very hard to activate. Expect a final update at the end of the year.

+1 vote     reply to comment May 8 2012 replied:

i unpacked it in my folder/map but it doesn't show up when i starts crysis itself, you know ?, restart crysis before Mod works ???

+1 vote     reply to comment
C-zom Dec 15 2011 says:

So is this dead?

+1 vote     reply to comment
evilmrsatan Creator
evilmrsatan Dec 19 2011 replied:

Not dead, gonna have an update soon!

+3 votes   reply to comment
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The Island of Cthulhu
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