Unable to start after patching:

[ArkAngel]

Error:
Couldnt Start "E:\\steamlibrary....Icarus-Win64-shipping.exe" Icarus CreatProcess() returned 570.

The damn lag and stuttering in this game is totally ridiculous, I can barely play anymore.

[Overly Optimistic Octopus]

Same issue - pop up box with above error when launching game following update.

[Rocket]

Try "verify game". We have noticed dramatic increases in corruption and slow downloads after Steam made changes to how files were distributed. Many users have problems, which is why we only do one game update a week. Let me know how you get on.

[Gom3R]

Cannot start game either. Have verified the game files and restarted computer. Even checked for updates to all my hardware. Game is now broke, all my other games work just fine. Same error as OP.

[Rocket]

CONFIRMED.

I have rolled back to the last safe experimental - there will be *some* things missing from it. Apologies folks. Will get that sorted. For now, reverify and get the new version.

[ArkAngel]

I already tried to verify the files, it did not resolve the problem.

[Rocket]

Originally posted by ArkAngel:

I already tried to verify the files, it did not resolve the problem.

Yes, I confirmed the issue (i got it too) so I changed the version, to one from testing on wednesday. If you verify files again, it will ensure you have that version.

The working version will be: 1.2.25.104225-rel-Styx

[Qunoe]

Thank you for the quick response and fix. Now its working again for me.

[ChefMartyJoe]

I had the same issue, so verified my files and reset my modem and router and fixed the problem. Having lots of fun in open world thank you.