Assains Creed Syndicate Won't Launch

[nessachu]

I just bought the game yesterday and it won't launch. it will start to launch for a few seconds and then stops. I have tried looking up articles on other people having similar issues and tried many suggestions, but nothing seems to work. Any one else experience this?

[agrimes]

yeah, I have a ludicrously large collection of games installed on this machine, titles spanning twenty years. damn thing doesn't work. It will flash a garbled screen every 15 seconds for one or two seconds then go dark again. There is a shadow window blocking the top left quadrant of the screen. have 4k primary monitor and WUXGA secondary. Video is RTX 4090, HDR enabled.

[agrimes]

discovered a file in my documents directory, AC.ini, it had selected an absurd resolution, setting it to sane values cured the game.

[m0]

agrimes, where is the filer located exactly? i am having the same problem and have tried everything.

[agrimes]

The game had created a folder in my normal documents (~\Documents) . It was pretty easy to find, I'm at my linux machine atm, but it was just "Assasin's Creed" or something very obvious like that, there were two files in the folder, an xml and a the AC.ini. I only looked at the ini file, and only the graphics sub-section of that file, which was the first section iirc.

[REPJ 93]

last day i face same issue, the solution is uninstall uplay on your AC Syndicate then download and install ubisoft connect from ubisoft official website. Now, i can play without face the ♥♥♥♥ issue

[Reaper]

Originally posted by REPJ 93:

last day i face same issue, the solution is uninstall uplay on your AC Syndicate then download and install ubisoft connect from ubisoft official website. Now, i can play without face the ♥♥♥♥ issue

Can you please explain how to do this? Thanks

[Ubi-Keo]

Originally posted by Chrimbo:

Originally posted by REPJ 93:

last day i face same issue, the solution is uninstall uplay on your AC Syndicate then download and install ubisoft connect from ubisoft official website. Now, i can play without face the ♥♥♥♥ issue

Can you please explain how to do this? Thanks

Hi, apologies for the late response.

Please go to the Ubisoft Connect website in the link below and download the Ubisoft Connect launcher. If you currently have the Uplay launcher installed, then please uninstall that.

https://ubisoftconnect.com

Once you have installed Ubisoft Connect, launch the launcher and login with your account details then try launching the game.

- Ubisoft Support

[Reaper]

Originally posted by Ubi-Keo:

Originally posted by Chrimbo:

Can you please explain how to do this? Thanks

Hi, apologies for the late response.

Please go to the Ubisoft Connect website in the link below and download the Ubisoft Connect launcher. If you currently have the Uplay launcher installed, then please uninstall that.

https://ubisoftconnect.com

Once you have installed Ubisoft Connect, launch the launcher and login with your account details then try launching the game.

- Ubisoft Support

I already did and the game worked, but it wasn’t my style, so I refunded, but thanks for the help

[Ubi-Keo]

Originally posted by Chrimbo:

Originally posted by Ubi-Keo:

Hi, apologies for the late response.

Please go to the Ubisoft Connect website in the link below and download the Ubisoft Connect launcher. If you currently have the Uplay launcher installed, then please uninstall that.

https://ubisoftconnect.com

Once you have installed Ubisoft Connect, launch the launcher and login with your account details then try launching the game.

- Ubisoft Support

I already did and the game worked, but it wasn’t my style, so I refunded, but thanks for the help

You're welcome. I'm sorry to hear that you did not enjoy the game and decided to get a refund.

- Ubisoft Support

[StampedParrot40]

I already have Ubisoft connect install and try to launch the game and it didn't launch at all

[Ubi-Keo]

Originally posted by StampedParrot40:

I already have Ubisoft connect install and try to launch the game and it didn't launch at all

Hi StampedParrot40,

I'm sorry to hear that the game is not launching despite having the Ubisoft Connect launcher installed rather than the Uplay launcher.

Could you take a look at the PC troubleshooting in the link below and go through any of the steps you may not have tried, then try again:

https://ubi.li/x17TX

However, if the issue persists I would recommend trying each of the following:

- Ensure your game is running on a dedicated GPU rather than an integrated GPU - https://ubi.li/q0hCX
- Clear Ubisoft Connect cache - https://ubi.li/uNKwr
- Add the game to the white list of your anti virus software
- Launch the game in Windows compatibility mode if you are using Windows 11 - https://ubi.li/h0VCZ
- Perform a SFC scan - https://ubi.li/gCxN0 (Win 10 & Below) https://ubi.li/OYBuj (Windows 10 & 11)
- Unplug non-essential peripherals (extra monitors, controllers, VR equipment, etc.)
- Reinstall the support software - https://ubi.li/s9Zj3
- Uninstall the game and Ubisoft Connect, then reinstall them on the same drive as your OS - https://ubi.li/cf8hs

If those steps do not help could you please confirm your PC specifications.

- Ubisoft Support

[Atlas]

Developer team please all done the steps , huge fan of assassin's creed . After your last update to add achievements at steam you ruined the game. We are running 2025 and I am bored i don't have aura in my body nothing left to play , wanted to play syndicate and I can't press play to run the game are we serious ? This problems will be with shadows as well ? What should I expect ?
I have downloaded the game 4 times and 4 uninnstalles ruinning my 180 minutes on this procedure

[Ubi-Vinci]

Hey Atlas

Apologies for the late response and sorry to hear that Assassin's Creed Syndicate is not launching on your PC.

If you have completed all the steps advised by Ubi-Keo above, and you still cannot launch the game, share with us the full specs of your PC, please.

CPU:
GPU:
RAM:
Storage type (NVME / SSD, HDD):
Windows version:
(type WinVer in the Start menu and press Enter to check your Windows version and build)

Do you have any additional USB accessories plugged in?
Do you have more than one monitor?
Is the Ubisoft Connect and the game installed on the system C drive?

Please include the GPU driver version and date and the game's installation path.

[Skinnygirls]

I literally joined the discord server and even asked for aide and did all the steps that were even presented here. This might genuinely be an issue regarding the application as opposed to peoples software. I have done literally every step that was presented to me yet to no avail does the game launch.

Also your this is a problem that has recently become problematic for people trying to launch either unity/syndicate. Addressing the issues by saying the same things where you see people say "Actually we have done all these things and none of them are working" seems to be a server side issue but I could be wrong.