You may need to manually add newer DLC IDs if the tool’s database is outdated. (You can find current DLC IDs on SteamDB.)
You lose mod stability, waste hours on manual mod management, and risk losing your cities to corruption. If you love the game, support the developers – the modding experience on a legit copy is infinitely better. screamapi cities skylines
When you launch Cities: Skylines through Steam, the game checks your account’s licenses for installed DLC files. ScreamAPI intercepts these checks. It mimics the Steam API’s response, tricking the game into believing you legally own every piece of DLC present in your game files. In short: You may need to manually add newer DLC
Copy the appropriate DLL ( steam_api64.dll ) into the Cities_Data\Plugins folder, overwriting nothing (since you renamed the original). When you launch Cities: Skylines through Steam, the