Elder Chaos

About this game

You, as one of the Old Ones, were suppressed by Old Gods billions of years ago. You were forced into a deep sleep until one day, part of your mind became awake beneath the ground.

Use your power, build facilities, summon servants, and defeat investigators! Dangers are getting closer as your name was known worldwide. Find a balance between collecting power and hiding yourself before you can break the seal and reign this world.

• 6 deities with powerful skills you can control

• Various facilities with different functions

• Distinct monsters are at your service

• Combat with cunning investigators

• Evaluation system for star collection

• Explore hundreds of ways to win the game by using different stellar power

• Numerous random events make the game more unpredictable

• Three themes with multiple stages are waiting for your exploration

• Gallery for monsters, investigators, facilities and Old Ones

Latest news

• Patch Notes·20 Dec 2017Official

  Workshop Update

  Hello folks. We are happy to announce that we have prepared a new update for upcoming Christmas. The major content in this patch is a Map Editor for Elder Chaos. With the editor, players are able to DIY unique maps for Elder Chaos. All maps can be submitted to Steam Workshop via our Map Editor. Feel free to share your work with other game lovers. has been updated. In addition, we have optimized the game system for x64 architecture, which may solve some bug such as game crash or loading failure. To submit your DIY maps to Workshop, Internet connection is required. Thus, there’s a possibility that your contents may be submitted incorrectly or incompletely due to network delay. If such issue happens, please try to resubmit after a few seconds. Please check your workshop file to make sure all your work is correctly displayed. If you have any other question or bug report, please contact us at bob@emprom.net Moreover, we have uploaded new PDF Instructions for game and editor. Please check the PDF file if you want to learn more about game play or map design. Thanks for your support. Recently, we have started a new game project. It is a SRPG with unique puzzle solving content. Merry Christmas.
  Read full article on Community Announcements (ProMise)

• Patch Notes·20 Dec 2017Official

  Workshop Update

  Hello folks. We are happy to announce that we have prepared a new update for upcoming Christmas. The major content in this patch is a Map Editor for Elder Chaos. With the editor, players are able to DIY unique maps for Elder Chaos. All maps can be submitted to Steam Workshop via our Map Editor. Feel free to share your work with other game lovers. has been updated. In addition, we have optimized the game system for x64 architecture, which may solve some bug such as game crash or loading failure. To submit your DIY maps to Workshop, Internet connection is required. Thus, there’s a possibility that your contents may be submitted incorrectly or incompletely due to network delay. If such issue happens, please try to resubmit after a few seconds. Please check your workshop file to make sure all your work is correctly displayed. If you have any other question or bug report, please contact us at bob@emprom.net Moreover, we have uploaded new PDF Instructions for game and editor. Please check the PDF file if you want to learn more about game play or map design. Thanks for your support. Recently, we have started a new game project. It is a SRPG with unique puzzle solving content. Merry Christmas.
  Read full article on Community Announcements (xbyprom)

• Patch Notes·17 Nov 2017Official

  Untitled

  Read full article on Community Announcements (ProMise)

• Patch Notes·17 Nov 2017Official

  1116#Patch Note

  Since the game launch, we have collected enormous feedback from Community and testers, which provides significant clues for us to make an improvement. We hereby show our greatest gratitude to your devotion to Elder Chaos. Our team has been working on revising the game contents for almost 2 weeks. Below are new modifications in the coming version: 1. Brand new operation style After receiving much feedback on operation experience, we will replace dragging with clicking by your mouse. Now, you just need to click the icons of Skills or Servants. Then, they will follow your mouse’s track until a new location is assigned. 2. Brand new guidance for new players The introduction to game was too short in our first version, which confused quite a few players. Some of them even didn’t know servants can be moved to different areas. To match the new operation formula, we have redesigned a more detailed and easy-to-play Guidance for new comers, hope it will offer you a better gaming experience. 3. Brand new Information Bar There were numerous UI problems in Information Bar in the first version. This time we will change the size of Information Bar, its content fonts and layout. Hope the adjustment will make information more intuitive and clearer. 4. Stella Map adjusted We found too much Sanity Damage is dealt to investigators in the former version, although it is a distinctive feature of Cthulhu Game, we still don’t hope players win the games only by using servants with Sanity Damage. The ways of winning the game are supposed to be various. Therefore, we have buffed parts of Stella points which are relevant to physical damage and getting trophies so that physical hits can obtain souls more intuitively. 5. Pyramid Buffed Pyramid has s strong facility effect. However, the AI of Investigators is random, which leads to an instability of Pyramid’s effect. So we decided to change the status by adding an Activate mark to Pyramid. In other words, investigators will be queuing up to enter a...
  Read full article on Community Announcements (ProMise)

• Patch Notes·17 Nov 2017Official

  1116#Patch Note

  Since the game launch, we have collected enormous feedback from Community and testers, which provides significant clues for us to make an improvement. We hereby show our greatest gratitude to your devotion to Elder Chaos. Our team has been working on revising the game contents for almost 2 weeks. Below are new modifications in the coming version: 1. Brand new operation style After receiving much feedback on operation experience, we will replace dragging with clicking by your mouse. Now, you just need to click the icons of Skills or Servants. Then, they will follow your mouse’s track until a new location is assigned. 2. Brand new guidance for new players The introduction to game was too short in our first version, which confused quite a few players. Some of them even didn’t know servants can be moved to different areas. To match the new operation formula, we have redesigned a more detailed and easy-to-play Guidance for new comers, hope it will offer you a better gaming experience. 3. Brand new Information Bar There were numerous UI problems in Information Bar in the first version. This time we will change the size of Information Bar, its content fonts and layout. Hope the adjustment will make information more intuitive and clearer. 4. Stella Map adjusted We found too much Sanity Damage is dealt to investigators in the former version, although it is a distinctive feature of Cthulhu Game, we still don’t hope players win the games only by using servants with Sanity Damage. The ways of winning the game are supposed to be various. Therefore, we have buffed parts of Stella points which are relevant to physical damage and getting trophies so that physical hits can obtain souls more intuitively. 5. Pyramid Buffed Pyramid has s strong facility effect. However, the AI of Investigators is random, which leads to an instability of Pyramid’s effect. So we decided to change the status by adding an Activate mark to Pyramid. In other words, investigators will be queuing up to enter a...
  Read full article on Community Announcements (xbyprom)