You are able to report another player’s blueprint for violating the code of conduct in Planet Coaster by following these steps:
- Open the offending blueprint page in Steam.
- Locate the flag icon below the bottom right-hand corner of the blueprint image.
- Click this to open the ‘Report This Item’ box.
- Enter your reasons for reporting the item, including relevant links or other evidence.
- Select ‘OK’.
These reports will be reviewed and actioned as necessary according to the user guidelines provided by both Frontier and Steam.
You can find the rules for the Steam platform and workshop submissions here: https://support.steampowered.com/kb_article.php?ref=4045-USHJ-3810
The Steam subscriber agreement also covers any user-generated contact uploaded to the Workshop: http://store.steampowered.com/subscriber_agreement/
If you still require assistance with this, you can raise a support ticket here: