Hello again, I think some of you might still remember the CI 666 series. Well I’m honored to let you know that:
CIU 666 HD Edition Is Out Now
Download the mod here. Have fun!
This mod will no longer receive update In the future
P/S: If you have a problem with rotation gear and it own sounds, It has to be mod manually through IAMT because IAMI didn’t have it yet
DISCLAIMER: THIS MOD IS NOT OFFICIAL AND IT WILL NEVER BE
Reminder: If you happen to record video about the mod, please Include “Unofficial/Fanmade” anywhere In the video to prevent misunderstand
Credits
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Original CI 666 mod contribution team: Emerald, Dawid, Enhawk, Qbus, Randomdudeguy, Francis, Vermishelb and Orandza
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666 Series Is owned by Orandza
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Unofficial/Fanmade CIU 666 HD Edition: Marcus_M1
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TGU Team: Dawid8, Emerald, Fwancis, Orandza, MageAzure, Viola
Q&A
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What? But CI4 and CI5 666 HD Edition haven’t even release yet? Well, this Is a fanmade mod and CIU never had anything low-quality so I don’t see any problem from naming It HD
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But I though 666 series Is owned by Orandza? yes Is It, I got his permission to make this mod.
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I made this mod simply because I was bored and wanted something fun to work on. While looking back at some old CIU mods, I came across the CIU 666 mod—but it was outdated and hadn’t been updated in a long time. So, I decided to create a full version myself. Development took 17 days, and here we are!
About this mod
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For anyone who don’t know what Is 666 mod, It mostly a meme-based mod that add the chaos and the fun based on the Internet humor. Is full of random stuffs that make the game funnier and more nostalgic (kinda)
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All music, sounds and graphics are Included
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CIU 666 HD fanmade/unofficial Is designed based on older 666 mod and some other new things added exclusively for CIU.
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Spaceships, DLCs are unavailable
Mod log
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2025/8/20 First Update: Minor sounds, HUD, textures changed
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2025/8/31 Final Update change logs:
Sprite remade: Egg Cannon, Henterprise, Dr.Beaker, The Alien Mothership & “I’ll be back!", Mother Hen-ship, Shoot the Core!, All 4 UCOs, Normal & Frozen Asteroids, Chick Gatling Gun & Lasergun, Metal Bomb, all type of Chickens, Rotation Gear (had to be mod manually), Bubbles, Supernova debris, entire retro theme, Aftermarket, Fortune Teller, Heroware, Heroes Academy, Photon Swarm, Hypergun, Neutron Gun, Corn Shotgun, Enemies projectiles, Keys, Medals, Quests, Pizza; Ice cream; Popcorn & Sweat Cuisines -
Sprite tweaks/fixed: Comet Chase, UFO Saucers, Metal Bomb, The Yolk-Star™, Special Force, It’s Party Time!, It’s a Bird! It’s a Plane!, Twice Infinity, The Iron Chef, Robotic Space Crab & Crab 2.0, Thundercluck, Magnetic Manipulator, Henlley’s Comet, It Gets Cold In Space, Blast From The Past, Satellites -
Music: Replace CIU Intense Theme, CI2 Theme and CI5 suspense, enhanced volumn of some soundtrack -
Sounds: A bunch of new sounds and a lot of replacement