diff --git a/README.md b/README.md
index 59ebff2d..d65c60a5 100644
--- a/README.md
+++ b/README.md
@@ -35,17 +35,19 @@ This file stores essential metadata in JSON format. **Make sure you adhere to th
   "categories": ["Content"],
   "author": "Joe Mama",
   "repo": "https://github.com/joemama/extended-cards",
-  "downloadURL": "https://github.com/joemama/extended-cards/releases/latest/extended-cards.tar.gz"
+  "downloadURL": "https://github.com/joemama/extended-cards/releases/latest/extended-cards.tar.gz",
+  "folderName": "ExtendedCards"
 }
 
 ```
 - **title**: The name of your mod.
 - **requires-steamodded**: If your mod requires the [Steamodded](https://github.com/Steamodded/smods) mod loader, set this to `true`.
-- **requires-talisman**: If your mod requires the [Talisman](https://github.com/MathIsFun0/Talisman) mod, set this to `true`.
-- **categories**: Must be of `Content`, `Joker`, `Quality of Life`, `Technical`, `Miscellaneous`, `Resource Packs` or `API`.
+- *requires-talisman*: (*Optional*) If your mod requires the [Talisman](https://github.com/MathIsFun0/Talisman) mod, set this to `true`.
+- **categories**: Must contain at least one of `Content`, `Joker`, `Quality of Life`, `Technical`, `Miscellaneous`, `Resource Packs` or `API`.
 - **author**: Your chosen username or handle.
 - **repo**: A link to your mod's repository.
 - **downloadURL**: A direct link to the latest version of your released mod. (Can be same as `repo` if no separate download link exists.)
+- *folderName*: (*Optional*) The name for the mod's install folder. This must not contain characters `<` `>` `:` `"` `/` `\` `|` `?` `*`
 
 ### 3. thumbnail.jpg (Optional)
 If included, this image will appear alongside your mod in the index. Maximum and recommended size is 1920x1080 pixels.
diff --git a/mods/MathIsFun0@Cryptid/meta.json b/mods/MathIsFun0@Cryptid/meta.json
index 886ce022..979e3a7a 100644
--- a/mods/MathIsFun0@Cryptid/meta.json
+++ b/mods/MathIsFun0@Cryptid/meta.json
@@ -5,5 +5,6 @@
   "categories": ["Content"],
   "author": "MathIsFun0",
   "repo":"https://github.com/MathIsFun0/Cryptid",
-  "downloadURL": "https://github.com/MathIsFun0/Cryptid/archive/refs/heads/main.zip"
+  "downloadURL": "https://github.com/MathIsFun0/Cryptid/archive/refs/heads/main.zip",
+  "folderName": "Cryptid"
 }
diff --git a/mods/MathIsFun0@Talisman/meta.json b/mods/MathIsFun0@Talisman/meta.json
index 25d67289..5c74007d 100644
--- a/mods/MathIsFun0@Talisman/meta.json
+++ b/mods/MathIsFun0@Talisman/meta.json
@@ -5,5 +5,6 @@
   "categories": ["API", "Technical", "Quality of Life"],
   "author": "MathIsFun0",
   "repo":"https://github.com/MathIsFun0/Talisman",
-  "downloadURL": "https://github.com/MathIsFun0/Talisman/releases/latest/download/Talisman.zip"
+  "downloadURL": "https://github.com/MathIsFun0/Talisman/releases/latest/download/Talisman.zip",
+  "folderName": "Talisman"
 }
diff --git a/mods/MathIsFun0@Trance/meta.json b/mods/MathIsFun0@Trance/meta.json
index 0bf2a70c..f58f6e6b 100644
--- a/mods/MathIsFun0@Trance/meta.json
+++ b/mods/MathIsFun0@Trance/meta.json
@@ -5,5 +5,6 @@
   "categories": ["Miscellaneous"],
   "author": "MathIsFun0",
   "repo":"https://github.com/MathIsFun0/Trance",
-  "downloadURL": "https://github.com/MathIsFun0/Trance/archive/refs/heads/main.zip"
+  "downloadURL": "https://github.com/MathIsFun0/Trance/archive/refs/heads/main.zip",
+  "folderName": "Trance"
 }
diff --git a/schema/meta.schema.json b/schema/meta.schema.json
index e033fca8..6586bae4 100644
--- a/schema/meta.schema.json
+++ b/schema/meta.schema.json
@@ -31,6 +31,10 @@
     "downloadURL": {
       "type": "string",
       "format": "uri"
+    },
+    "folderName": {
+      "type": "string",
+      "pattern": "^[^<>:\"/\\|?*]+$"
     }
   },
   "required": ["title", "requires-steamodded", "categories", "author", "repo", "downloadURL"]