My Overlord! The stars will soon be aligned, we have to rebuild R'Lyeh and forge the Unnameable key to the Ultimate Gate and awake the one true god: Cthulhu!
May his reign endure beyond eternity! FHTAGN!


  • Idle/clicker mechanics
  • Build  your base
  • 10 upgradable Buildings types
  • 5 Resources to manage
  • Three levels of difficulty
  • Many tentacles
  • Gameboy like Pixel Art



Click Of Cthulhu was born from the idea of creating a city building game on Gameboy. The game was created in one week with Unity. Not a single line of code has been written to make this game thanks to Playmaker!

Black Flag

Black Flag is cooperative of two friends based in Bordeaux, France. We brew independent games and develop hopped beers! Our next game is called Orphan Age, it's a dystopian simulation game where you look after orphans left behind in a cyberpunk war. You can play the demo here and here.

You can support us by adding orphan Age to your wishlist on Steam or by joining the private Alpha today at:

Hop on on Discord to chat with us:



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Development log


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is there a save function to the game?

how do i mute its audio

Awesome is the only word to describe this


at first was just curious but stayed and beat the game very cool


adored this. great job, you guys :


An incredible game that all fans of city-builders NEED to play! The artwork is gorgeous and the music draws you into the world immediately. I lost myself in the world for hours trying to beat it on the hardest difficulty. Definitely of the best city builder games I have ever played.

Thank you so much for your message. <3

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Excellent clicker game!
I really like your choice of cthulu theme.
Very good pixelart!
Any chance for a native linux version?


Hello baguette fellas ! That's a fun tiny game you have here ^^


Fun Game. Except at the end they should show more of Cthulhu.


Late game gets a bit annoying because of the limit of old ones you can get per second or something. have to spend like 5 mins clicking on the gate to get old ones. I would suggest adding something like the unholy mine for old ones or decreasing/removing the delay on the gate. All else, great game. You did a good job on this :)

Thanks! We have added a new building that invoke deep ones!


Wish I could play this on my Switch!

can this become downloadable been wanting to play on my pc without internet


You can now!

awwwwwws Yeah 

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Quite fun. Would appreciate a way to demolish or replace buildings, and a fix for the black world bug. Oh, and a few sounds effects would be great for game-feel! Even if they were just little tiny blips for when you press buttons and build stuff. There are a bunch of free GBA sound libraries and sound chip emulators you could use to make your own.

Interesting game, having an issue with the game kicking me out with a "Restore Game" option then my world is black.  Can still interact with icons but cant see the map at all.  


Cool game but, I had a bug where my factory that turns rocks into metal cost 103 rocks to build. But I only had space to hold 100 rocks and couldn't increase it because I need the metal to do that.


Thanks for making this! <3

I found a bug: when I restarted using f10, it cleared the buildings, but kept my accumulated resources, their relative storage capacities, and the increased prices of everything from before the reset.

Thanks for the report, didn't catch this one! Thanks again!

Fun game, overall I liked it. But would be nice to get an generator for the workers and be able to click thru buildings. For me the unnamed key building didn't seem to work. 

When you constructed the key, nothing happened?

Sorry for the bug, I'll try to see if I can reproduce it.

Oh, and I'm working on a building to generate population. Thanks for your feedback!

it's a nice game, i really lke it but i would like to save.

Also put a limit for the game area or a button to go back in the center of the map, i put my cursor on the top of the screen and a few secondes later i totaly lost my village

Hey! Thanks for your feedback, you can press space in order to focus the camera on your village. The info is hidden in the help menu.


Really nice game

Thanks! <3


Hi, nice clicker, even if i would prefer not to click one by one, but either hold mouse button down. It would physically hurt less. Also, i very often missplace a road when i want to place a building, not sure why. Playing on Linux with installed version. I'd love to see a more advanced game if you keep working on it.

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Maybe you could introduce a "trainer mode", in which one click would grant the player some 25~50 rocks, so as to avoid the exhaustive clicking, but focus more on the strategic aspect.

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Nice concept of a humour, good presentation, very clunky user interface, classic theme of a gameplay. Altogether, a solid city-sim, I think. If you like clickers, that is.

Thanks for the feedback. Can I ask you what issues did you have with the UI please?


In some layouts, placing a construction on a square behind yet another building, can be tricky. Universal mark for assigning of a construction is samewise as the one indicating the library in particular. These are the ones I remember best. There are other minor things, but I guess whether one thinks of them as an issue or not, depends on getting used to it.

Thanks a lot, I'll try to get this fixed next update.


Really nice game, it makes you want to turn into a speedrunner (without even liking chthlhulhtu...), well done :)

Thanks <3