Limits and Permissions
Important limits, roles, and permission rules.
This page lists the limits, roles, and permission rules you will encounter while using Ferrumium. All values apply to regular user accounts unless noted otherwise.
File upload limits
| What | Max size |
|---|---|
Save files (.sav) | 100 MB |
Blueprints (.sbp + .sbpcfg combined) | 50 MB |
| Save gallery images | 10 MB per image |
| User avatar | 5 MB |
Save galleries allow up to 6 images. The first gallery image is automatically used as the preview image. Avatars are automatically resized to 512x512 pixels on upload.
Co-op sessions
Each factory session supports up to 8 simultaneous participants. Every participant has one of three roles:
| Role | What you can do |
|---|---|
| Owner | Full control over the factory. Can add and remove collaborators, manage invite links, and edit freely. |
| Editor | Can modify the factory in real time alongside the owner. |
| Viewer | Can watch the session but cannot make any edits. |
The factory owner assigns roles when inviting collaborators or when accepting join requests through an invite link.
Voting and super likes
The Development section uses two kinds of votes: regular likes and super likes.
- Regular likes: 5 per day per user.
- Super likes: 2 per day per user.
Super likes carry extra weight based on your Patreon tier:
| Tier | Super like weight |
|---|---|
| Non-patron | 4x |
| Iron Patron | 7x |
| Steel Patron | 12x |
| Awesome Patron | 20x |
Patreon tiers
There are three supporter tiers: Iron Patron, Steel Patron, and Awesome Patron. Your tier determines:
- Your supporter badge displayed on your profile.
- The weight of your super likes in the Development section (see table above).
Rate limits
Ferrumium applies per-user rate limits to prevent abuse. Here are the ones most likely to affect normal usage:
| Action | Limit |
|---|---|
| Login attempts | 10 per minute |
| Account registration | 5 per hour |
| Save or blueprint uploads | 10 per hour |
| Publishing | 5 per hour |
| Likes | 60 per minute |
| Comments | 20 per minute |
| Search requests | 60 per minute |
If you hit a rate limit, wait for the window to reset and try again.
Folder organization
You can organize your factories into folders. The maximum nesting depth is 3 levels:
Root > Folder > Subfolder > Factory
You cannot nest folders beyond this depth.
Comment mentions
Each comment supports up to 10 @mentions. If you need to notify more people, split your message across multiple comments.