Cities: Skylines (Steam) - I NEED HELP, IS IMPOSSIBLE \\ Simulation: (failed) deserialized

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I can start a new city and the same city which i Save a month ago.

JulenFrr94

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Jul 8, 2021
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  • Cities: Skylines
  • Cities: Skylines - After Dark
  • Cities: Skylines - Mass Transit
  • Cities: Skylines - Green Cities
  • Cities: Skylines - Parklife
  • Cities: Skylines Industries
  • Cities: Skylines - Campus
Describe your issue
I NEED HELP, IS IMPOSSIBLE \\ Simulation: (failed) deserialized

What is your game version?
1.13

What expansions do you have installed?
After Dark, Mass Transit, Parklife, Industries, Campus, Sunset Harbor

What mods are you using?
Hard Mode (ID=18446744073709551615) activated
Unlimited Money (ID=18446744073709551615) activated
Unlimited Oil And Ore (ID=18446744073709551615) activated
Unlimited Soil (ID=18446744073709551615) activated
Unlock All (ID=18446744073709551615) activated
Roundabout Builder (ID=1625704117) activated
Traffic Congestion Report (ID=1651036644) activated
Prefab Hook (ID=530771650) activated
Improved Public Transport 2 [r5.0.3] (ID=928128676) activated
Klyte's Fine Road Tool 2.0.4 (ID=1844442251) activated
Klyte's Fine Road Anarchy 2.0.2 (ID=1844440354) activated
AutoLineColor Redux (ID=1415090282) activated
Empty It! (ID=1661072176) activated
More Network Stuff (ID=512314255) activated
Advanced Stop Selection (ID=1394468624) activated
Surface Painter (ID=689937287) activated
Prop & Tree Anarchy (ID=593588108) activated
Watch It! (ID=1643902284) activated
Parallel Road Tool 2.0.3 (ID=1440928803) activated
Network Extensions 2 (ID=812125426) activated
Airport Roads 1.3.7 (ID=465127441) activated
Extra Train Station Tracks (ID=515489008) activated
Move It 2.9.2 (ID=1619685021) activated
Building Themes (ID=466158459) activated
Network Tiling (ID=1274199764) activated
Demand Master (ID=409776678) activated
Auto Repair (ID=2034713132) activated
Plop Growables (ID=924884948) activated
Network Skins (ID=1758376843) activated
One-Way Street Arrows (ID=420500168) activated
Prop Line Tool (ID=694512541) activated
Harmony 2.0.4-4 (ID=2040656402) activated
Ploppable RICO (ID=586012417) activated
Quay Anarchy (ID=650436109) activated
Precision Engineering (ID=445589127) activated
One-Way Train Tracks (ID=724382534) activated
Additive Shader (ID=1410003347) activated
Transparency LOD Fix + Cloud Assets Enabler (ID=922939393) activated
81 Tiles (Fixed for C:S 1.2+) (ID=576327847) activated
Loading Screen Mod (ID=667342976) activated
Decal Prop Fix (ID=767233815) activated
Building Variations (ID=1782814610) activated
Heavy Outside Traffic (ID=1596838226) activated
Building Anarchy (ID=912329352) activated
Automatic Bulldoze v2 (ID=639486063) activated
All Areas purchaseable (ID=405810376) activated
AutoSave (ID=405999555) activated
Auto Save (ID=406123642) activated
Save Our Saves (ID=529129546) activated
Safenets (ID=1620588636) activated
Extra Landscaping Tools (ID=502750307) activated
TM:pE 11.5.2 STABLE (ID=1637663252) activated
Achieve It! (ID=1567569285) activated
First Person Camera (ID=650805785) activated
Intercity Bus Control (ID=2499771767) activated
Ultimate Level Of Detail (ID=1680642819) activated
Skip Intro (ID=1665106193) activated
Realistic Population Revisited 1.4.3 (ID=2025147082) activated
Extended Error Reporting (ID=2055465280) activated
Any Road Outside Connections (ID=883332136) activated
Spawn Points Fix (ID=820157360) activated
UnlimitedOutsideConnections (ID=497033453) activated
Adaptive Prop Visibility Distance (ID=625608461) activated
Metro Overhaul (ID=816260433) activated
Automatic Bulldoze (v3.0.7406.37321) (ID=2057780822) activated
Pedestrian Crossings (ID=427258853) activated

Please explain your issue is in as much detail as possible.
When I start my game appears a message in red that says Simulation: (failed) deserialized and then the game freeze. I try all things but nothing happens. I nee dhelp i had a 100.000 habs city. this is my output log: https ://ufile.io/906vran4

Can you replicate the issue? If yes, please explain how you did it.


Attachments File(s) attached
 
Cities_ Skylines 08_07_2021 13_14_53.png
 
Such issues are always mod or asset problems, whether bad, outdated or simply too many.

First step is to check your mods against this list:
Remove or replace any that are documented to be a problem.

If that doesn't help post a new output log and the affected save gam file, so the gameplay and mod experts can look into it.
 
Last edited:
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My apologies I pasted in the wrong link - try it now.
 
My apologies I pasted in the wrong link - try it now.
@AndrewT I have already checked all the mods and they are all compatible. Also, I can play in that same city in a game I saved previously. Also, I can also start a new city with all those mods without problem.
I have also tried starting with the SOS and all those helper mods.
Attached is the city and the output _log os the same that appears previously
Thank you.
 

Attachments

  • Jul`sCity NEW (1).crp
    26,1 MB · Views: 0
Last edited:
I can play in that same city in a game I saved previously. Also, I can also start a new city with all those mods without problem.
I see. Then it can only be that save file got corrupted somehow, or the mods caused a problem between the okay game save and the problem game save.

You should turn on autosaves in the game i you have not, AND when you do a manual save give it a new name each time so if anything like this goes wrong again you won't lose much progress.

As far as that problem save goes we'll need the mod and gameplay experts look into it and see if it is salvageable. Unfortunately it seems they are away at present so there may be a delay in that - I suggest you put that save aside for the time being.

Sorry for this problem, whatever caused it!
 
There's a few options to try and recover a save that has simulation errors. First subscribe to these mods:


Make sure to enable them and restart the game. Then go into Options, find the Loading Screen Mod on the left, then find its Safe Mode options and enable them. Try loading your save.

If it works, save as a new file. You can then remove the above mods, they shouldn't be needed anymore.

Unfortunately, it doesn't work for all simulation errors and there seems to be a new cause appearing, which isn't helped by these mods. But fingers crossed it does the trick for you! Otherwise, I'm afraid you will likely have to continue from the older version of the save and follow AndrewT's suggestions above to ensure you have multiple backups should something similar happen again.