diff --git a/Casks/m/modrinth.rb b/Casks/m/modrinth.rb
new file mode 100644
index 0000000000..97d594772d
--- /dev/null
+++ b/Casks/m/modrinth.rb
@@ -0,0 +1,25 @@
+cask "modrinth" do
+  version "0.5.4"
+  sha256 "e0f57aef3ca89bb319c488ab5801b88cee08905a799dc1b0d85dc864369f2a32"
+
+  url "https://launcher-files.modrinth.com/versions/#{version}/macos/Modrinth%20App_#{version}_universal.dmg"
+  name "Modrinth App"
+  desc "Minecraft modding platform"
+  homepage "https://modrinth.com/"
+
+  livecheck do
+    url "https://modrinth.com/app"
+    regex(/Modrinth%20App[._-](\d+(?:\.\d+)*)[._-]universal\.dmg/i)
+  end
+
+  app "Modrinth App.app"
+
+  uninstall quit: "com.modrinth.theseus"
+
+  zap trash: [
+    "~/Library/Application Support/com.modrinth.theseus",
+    "~/Library/Caches/com.modrinth.theseus",
+    "~/Library/WebKit/com.modrinth.theseus",
+    "~/Library/Saved Application State/com.modrinth.theseus.savedState",
+  ]
+end