diff --git a/visions/ui/src/App.tsx b/visions/ui/src/App.tsx
index 98626e8..635f326 100644
--- a/visions/ui/src/App.tsx
+++ b/visions/ui/src/App.tsx
@@ -8,6 +8,7 @@ import { WebsocketProvider } from './components/WebsocketProvider';
 import { PlayerView } from './views/PlayerView/PlayerView';
 import { Admin } from './views/Admin/Admin';
 import Candela from './plugins/Candela';
+import { Authentication } from './views/Authentication/Authentication';
 
 const TEST_CHARSHEET_UUID = "12df9c09-1f2f-4147-8eda-a97bd2a7a803";
 
@@ -35,6 +36,10 @@ const App = ({ client }: AppProps) => {
 
     let router =
         createBrowserRouter([
+            {
+                path: "/",
+                element: websocketUrl ? <WebsocketProvider websocketUrl={websocketUrl}> <Authentication client={client}> <PlayerView client={client} /> </Authentication> </WebsocketProvider> : <div> </div>
+            },
             {
                 path: "/gm",
                 element: websocketUrl ? <WebsocketProvider websocketUrl={websocketUrl}> <GmView client={client} /> </WebsocketProvider> : <div> </div>
@@ -43,10 +48,6 @@ const App = ({ client }: AppProps) => {
                 path: "/admin",
                 element: <Admin client={client} />
             },
-            {
-                path: "/",
-                element: websocketUrl ? <WebsocketProvider websocketUrl={websocketUrl}> <PlayerView client={client} /> </WebsocketProvider> : <div> </div>
-            },
             {
                 path: "/candela",
                 element: <CandelaCharsheet client={client} />
diff --git a/visions/ui/src/design.css b/visions/ui/src/design.css
new file mode 100644
index 0000000..7e227a4
--- /dev/null
+++ b/visions/ui/src/design.css
@@ -0,0 +1,15 @@
+:root {
+    --border-standard: 2px solid black;
+    --border-radius-standard: 4px;
+    --border-shadow-shallow: 1px 1px 2px black;
+    --padding-m: 8px;
+    --margin-s: 4px;
+}
+
+.card {
+    border: var(--border-standard);
+    border-radius: var(--border-radius-standard);
+    box-shadow: var(--border-shadow-shallow);
+    padding: var(--padding-m);
+}
+
diff --git a/visions/ui/src/views/Authentication/Authentication.css b/visions/ui/src/views/Authentication/Authentication.css
new file mode 100644
index 0000000..ca86baf
--- /dev/null
+++ b/visions/ui/src/views/Authentication/Authentication.css
@@ -0,0 +1,24 @@
+@import '../../design.css';
+
+.auth {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    width: 100%;
+    height: 100vh;
+}
+
+.auth > div {
+    border: var(--border-standard);
+    border-radius: var(--border-radius-standard);
+    padding: var(--padding-m);
+}
+
+.auth__input-line {
+    display: flex;
+    justify-content: space-between;
+}
+
+.auth__input-line > * {
+    margin: var(--margin-s);
+}
diff --git a/visions/ui/src/views/Authentication/Authentication.tsx b/visions/ui/src/views/Authentication/Authentication.tsx
new file mode 100644
index 0000000..6997fe2
--- /dev/null
+++ b/visions/ui/src/views/Authentication/Authentication.tsx
@@ -0,0 +1,50 @@
+import React, { PropsWithChildren, ReactNode, useContext, useEffect, useState } from 'react';
+import { Client } from '../../client';
+import { assertNever } from '../../plugins/Candela';
+import './Authentication.css';
+
+interface AuthenticationProps {
+    client: Client;
+}
+
+type AuthState = "NoAdmin" | "Unauthed" | "Authed";
+
+export const Authentication = ({ client, children }: PropsWithChildren<AuthenticationProps>) => {
+    // No admin password set: prompt for the admin password
+    // Password set, nobody logged in: prompt for login
+    // User logged in: show the children
+
+    let [state, setState] = useState<AuthState>("Unauthed");
+
+    switch (state) {
+        case "NoAdmin": {
+            return <div className="auth">
+                <div className="card">
+                    <h1> Welcome to your new Visions VTT Instance </h1>
+                    <p> Set your admin password: </p>
+                    <input type="password" placeholder="Password" />
+                    <input type="submit" value="Submit" />
+                </div>
+            </div>;
+        }
+        case "Unauthed": {
+            return <div className="auth card">
+                <div className="card">
+                    <h1> Welcome to Visions VTT </h1>
+                    <div className="auth__input-line">
+                        <input type="text" placeholder="Username" />
+                        <input type="password" placeholder="Password" />
+                        <input type="submit" value="Sign in" />
+                    </div>
+                </div>
+            </div>;
+        }
+        case "Authed": {
+            return <div> {children} </div>;
+        }
+        default: {
+            assertNever(state);
+            return <div></div>;
+        }
+    }
+}