diff --git a/frontend/apps/web/package.json b/frontend/apps/web/package.json
index 88c42a7..5abea82 100644
--- a/frontend/apps/web/package.json
+++ b/frontend/apps/web/package.json
@@ -7,17 +7,19 @@
     "dev": "vite",
     "build": "tsc && vite build",
     "preview": "vite preview",
-    "test": "vitest",
+    "test": "vitest --config vitest.config.ts",
     "clean": "rm -rf dist node_modules/.vite"
   },
   "dependencies": {
     "@solidjs/router": "^0.10.0",
     "@suid/icons-material": "^0.7.0",
     "@suid/material": "^0.16.0",
-    "solid-js": "^1.9.0"
+    "solid-js": "^1.9.0",
+    "zod": "^3.25.76"
   },
   "devDependencies": {
     "@solidjs/testing-library": "^0.8.0",
+    "jsdom": "^26.1.0",
     "typescript": "^5.5.4",
     "vite": "^5.0.0",
     "vite-plugin-solid": "^2.8.0",
diff --git a/frontend/apps/web/src/App.tsx b/frontend/apps/web/src/App.tsx
index fb4c173..a885ea4 100644
--- a/frontend/apps/web/src/App.tsx
+++ b/frontend/apps/web/src/App.tsx
@@ -1,11 +1,20 @@
+import { Route, Router } from '@solidjs/router'
 import type { Component } from 'solid-js'
 
+import AppShell from './components/AppShell'
+import GameRoute from './routes/Game'
+import HomeRoute from './routes/Home'
+import LeaderboardRoute from './routes/Leaderboard'
+import ProfileRoute from './routes/Profile'
+
 const App: Component = () => {
   return (
-    <div>
-      <h1>Know Foolery</h1>
-      <p>Quiz game coming soon...</p>
-    </div>
+    <Router root={AppShell}>
+      <Route path="/" component={HomeRoute} />
+      <Route path="/game" component={GameRoute} />
+      <Route path="/leaderboard" component={LeaderboardRoute} />
+      <Route path="/profile" component={ProfileRoute} />
+    </Router>
   )
 }
 
diff --git a/frontend/apps/web/src/components/AppShell.tsx b/frontend/apps/web/src/components/AppShell.tsx
new file mode 100644
index 0000000..f57bcf3
--- /dev/null
+++ b/frontend/apps/web/src/components/AppShell.tsx
@@ -0,0 +1,50 @@
+import { A, Outlet } from '@solidjs/router'
+import type { Component } from 'solid-js'
+
+import AppBar from '@suid/material/AppBar'
+import Box from '@suid/material/Box'
+import Container from '@suid/material/Container'
+import IconButton from '@suid/material/IconButton'
+import Stack from '@suid/material/Stack'
+import Toolbar from '@suid/material/Toolbar'
+import Typography from '@suid/material/Typography'
+
+import HomeIcon from '@suid/icons-material/Home'
+import SportsEsportsIcon from '@suid/icons-material/SportsEsports'
+import LeaderboardIcon from '@suid/icons-material/Leaderboard'
+import PersonIcon from '@suid/icons-material/Person'
+
+const AppShell: Component = () => {
+  return (
+    <Box sx={{ minHeight: '100vh', bgcolor: '#0b0e14', color: '#e6e6e6' }}>
+      <AppBar position="static" color="transparent" elevation={0}>
+        <Toolbar>
+          <Typography variant="h6" sx={{ flexGrow: 1, fontWeight: 700 }}>
+            Know Foolery
+          </Typography>
+
+          <Stack direction="row" spacing={1}>
+            <IconButton component={A} href="/" aria-label="Home" color="inherit">
+              <HomeIcon />
+            </IconButton>
+            <IconButton component={A} href="/game" aria-label="Game" color="inherit">
+              <SportsEsportsIcon />
+            </IconButton>
+            <IconButton component={A} href="/leaderboard" aria-label="Leaderboard" color="inherit">
+              <LeaderboardIcon />
+            </IconButton>
+            <IconButton component={A} href="/profile" aria-label="Profile" color="inherit">
+              <PersonIcon />
+            </IconButton>
+          </Stack>
+        </Toolbar>
+      </AppBar>
+
+      <Container maxWidth="md" sx={{ py: 3 }}>
+        <Outlet />
+      </Container>
+    </Box>
+  )
+}
+
+export default AppShell
diff --git a/frontend/apps/web/src/hooks/useTimer.ts b/frontend/apps/web/src/hooks/useTimer.ts
new file mode 100644
index 0000000..9cc9530
--- /dev/null
+++ b/frontend/apps/web/src/hooks/useTimer.ts
@@ -0,0 +1,35 @@
+import { createSignal, onCleanup } from 'solid-js'
+
+export function useTimer(durationMs: number) {
+  const [remainingMs, setRemainingMs] = createSignal(durationMs)
+  const [isExpired, setIsExpired] = createSignal(false)
+
+  let t: number | undefined
+  let startedAt: number | undefined
+
+  const tick = () => {
+    if (startedAt == null) return
+    const elapsed = Date.now() - startedAt
+    const remain = Math.max(0, durationMs - elapsed)
+    setRemainingMs(remain)
+    if (remain === 0) setIsExpired(true)
+  }
+
+  const start = () => {
+    if (t != null) return
+    startedAt = Date.now()
+    tick()
+    t = window.setInterval(tick, 250)
+  }
+
+  const stop = () => {
+    if (t != null) {
+      window.clearInterval(t)
+      t = undefined
+    }
+  }
+
+  onCleanup(() => stop())
+
+  return { remainingMs, isExpired, start, stop }
+}
diff --git a/frontend/apps/web/src/main.tsx b/frontend/apps/web/src/main.tsx
index 39ce5d7..4a3ab1d 100644
--- a/frontend/apps/web/src/main.tsx
+++ b/frontend/apps/web/src/main.tsx
@@ -1,4 +1,5 @@
 import { render } from 'solid-js/web'
+
 import App from './App'
 import './styles/global.css'
 
diff --git a/frontend/apps/web/src/routes/Game.tsx b/frontend/apps/web/src/routes/Game.tsx
new file mode 100644
index 0000000..34e0fb7
--- /dev/null
+++ b/frontend/apps/web/src/routes/Game.tsx
@@ -0,0 +1,120 @@
+import { createMemo, createSignal, onCleanup, onMount } from 'solid-js'
+
+import Box from '@suid/material/Box'
+import Button from '@suid/material/Button'
+import Card from '@suid/material/Card'
+import CardContent from '@suid/material/CardContent'
+import Divider from '@suid/material/Divider'
+import Stack from '@suid/material/Stack'
+import TextField from '@suid/material/TextField'
+import Typography from '@suid/material/Typography'
+
+import AttemptIndicator from '../ui/AttemptIndicator'
+import ScoreDisplay from '../ui/ScoreDisplay'
+import Timer from '../ui/Timer'
+import { useTimer } from '../hooks/useTimer'
+
+export default function GameRoute() {
+  // Placeholder game state until backend exists.
+  const [question] = createSignal({ theme: 'Général', text: 'Quel est le plus petit nombre premier ?' })
+  const [answer, setAnswer] = createSignal('')
+  const [attempts, setAttempts] = createSignal(0)
+  const [hintUsed, setHintUsed] = createSignal(false)
+  const [score, setScore] = createSignal(0)
+  const [message, setMessage] = createSignal<string | null>(null)
+
+  const durationMs = 30 * 60 * 1000
+  const { remainingMs, isExpired, start } = useTimer(durationMs)
+
+  onMount(() => start())
+
+  onCleanup(() => {
+    // no-op; hook cleans itself
+  })
+
+  const attemptsLeft = createMemo(() => Math.max(0, 3 - attempts()))
+
+  const submit = () => {
+    if (isExpired()) {
+      setMessage('Session terminée (timeout).')
+      return
+    }
+
+    const normalized = answer().trim().toLowerCase()
+    const correct = normalized === '2' || normalized === 'deux'
+
+    setAttempts((a) => a + 1)
+
+    if (correct) {
+      const delta = hintUsed() ? 1 : 2
+      setScore((s) => s + delta)
+      setMessage(`Bonne réponse (+${delta}).`) 
+    } else {
+      setMessage('Mauvaise réponse.')
+    }
+
+    setAnswer('')
+  }
+
+  const useHint = () => {
+    if (hintUsed()) return
+    setHintUsed(true)
+    setMessage('Indice: c’est le seul nombre premier pair.')
+  }
+
+  return (
+    <Box>
+      <Stack spacing={2}>
+        <Stack direction={{ xs: 'column', sm: 'row' }} spacing={2} alignItems="center">
+          <Box sx={{ flexGrow: 1 }}>
+            <Typography variant="h4" sx={{ fontWeight: 800 }}>
+              Partie
+            </Typography>
+            <Typography sx={{ opacity: 0.8 }}>Thème : {question().theme}</Typography>
+          </Box>
+          <Timer remainingMs={remainingMs()} />
+          <ScoreDisplay score={score()} />
+        </Stack>
+
+        <Card variant="outlined" sx={{ bgcolor: '#111827', borderColor: '#1f2937' }}>
+          <CardContent>
+            <Stack spacing={2}>
+              <Typography variant="h6" sx={{ fontWeight: 700 }}>
+                {question().text}
+              </Typography>
+
+              <TextField
+                label="Ta réponse"
+                value={answer()}
+                onInput={(e) => setAnswer(e.currentTarget.value)}
+                fullWidth
+                InputLabelProps={{ style: { color: '#cbd5e1' } }}
+                InputProps={{ style: { color: '#e5e7eb' } }}
+                onKeyDown={(e) => {
+                  if (e.key === 'Enter') submit()
+                }}
+              />
+
+              <AttemptIndicator attemptsUsed={attempts()} attemptsMax={3} />
+
+              <Stack direction={{ xs: 'column', sm: 'row' }} spacing={2}>
+                <Button variant="contained" disabled={attemptsLeft() === 0} onClick={submit}>
+                  Envoyer
+                </Button>
+                <Button variant="outlined" disabled={hintUsed()} onClick={useHint}>
+                  Indice (score réduit)
+                </Button>
+              </Stack>
+
+              <Divider />
+
+              {message() && <Typography sx={{ opacity: 0.9 }}>{message()}</Typography>}
+              {attemptsLeft() === 0 && <Typography color="warning.main">Plus d'essais.</Typography>}
+              {isExpired() && <Typography color="error.main">Temps écoulé.</Typography>}
+            </Stack>
+          </CardContent>
+        </Card>
+      </Stack>
+    </Box>
+  )
+}
diff --git a/frontend/apps/web/src/routes/Home.tsx b/frontend/apps/web/src/routes/Home.tsx
new file mode 100644
index 0000000..5506a61
--- /dev/null
+++ b/frontend/apps/web/src/routes/Home.tsx
@@ -0,0 +1,70 @@
+import { useNavigate } from '@solidjs/router'
+import { createSignal } from 'solid-js'
+
+import Box from '@suid/material/Box'
+import Button from '@suid/material/Button'
+import Card from '@suid/material/Card'
+import CardContent from '@suid/material/CardContent'
+import Stack from '@suid/material/Stack'
+import TextField from '@suid/material/TextField'
+import Typography from '@suid/material/Typography'
+
+import { playerNameSchema } from '../services/validation'
+
+export default function HomeRoute() {
+  const navigate = useNavigate()
+  const [playerName, setPlayerName] = createSignal('')
+  const [error, setError] = createSignal<string | null>(null)
+
+  const start = () => {
+    const name = playerName().trim()
+    const parsed = playerNameSchema.safeParse(name)
+    if (!parsed.success) {
+      setError(parsed.error.issues[0]?.message ?? 'Nom invalide')
+      return
+    }
+
+    setError(null)
+    // keep it simple: store in localStorage
+    localStorage.setItem('kf.playerName', name)
+    navigate('/game')
+  }
+
+  return (
+    <Box>
+      <Card variant="outlined" sx={{ bgcolor: '#111827', borderColor: '#1f2937' }}>
+        <CardContent>
+          <Stack spacing={2}>
+            <Typography variant="h4" sx={{ fontWeight: 800 }}>
+              Bienvenue
+            </Typography>
+            <Typography sx={{ opacity: 0.8 }}>
+              Entre ton pseudo et lance une partie.
+            </Typography>
+
+            <TextField
+              label="Nom de joueur"
+              value={playerName()}
+              onInput={(e) => setPlayerName(e.currentTarget.value)}
+              error={!!error()}
+              helperText={error() ?? '2–50 caractères'}
+              fullWidth
+              variant="outlined"
+              InputLabelProps={{ style: { color: '#cbd5e1' } }}
+              InputProps={{ style: { color: '#e5e7eb' } }}
+            />
+
+            <Stack direction={{ xs: 'column', sm: 'row' }} spacing={2}>
+              <Button variant="contained" onClick={start}>
+                Démarrer la partie
+              </Button>
+              <Button variant="outlined" onClick={() => navigate('/leaderboard')}>
+                Voir le leaderboard
+              </Button>
+            </Stack>
+          </Stack>
+        </CardContent>
+      </Card>
+    </Box>
+  )
+}
diff --git a/frontend/apps/web/src/routes/Leaderboard.tsx b/frontend/apps/web/src/routes/Leaderboard.tsx
new file mode 100644
index 0000000..d72f11e
--- /dev/null
+++ b/frontend/apps/web/src/routes/Leaderboard.tsx
@@ -0,0 +1,57 @@
+import { For, Show, createResource } from 'solid-js'
+
+import Box from '@suid/material/Box'
+import Button from '@suid/material/Button'
+import Card from '@suid/material/Card'
+import CardContent from '@suid/material/CardContent'
+import CircularProgress from '@suid/material/CircularProgress'
+import Stack from '@suid/material/Stack'
+import Typography from '@suid/material/Typography'
+
+import { leaderboardClient } from '../services/api'
+
+export default function LeaderboardRoute() {
+  const [items, { refetch }] = createResource(async () => leaderboardClient.top10())
+
+  return (
+    <Box>
+      <Stack spacing={2}>
+        <Stack direction={{ xs: 'column', sm: 'row' }} spacing={2} alignItems="center">
+          <Typography variant="h4" sx={{ fontWeight: 800, flexGrow: 1 }}>
+            Leaderboard
+          </Typography>
+          <Button variant="outlined" onClick={() => refetch()}>
+            Rafraîchir
+          </Button>
+        </Stack>
+
+        <Card variant="outlined" sx={{ bgcolor: '#111827', borderColor: '#1f2937' }}>
+          <CardContent>
+            <Show when={!items.loading} fallback={<CircularProgress />}>
+              <Show
+                when={(items() ?? []).length > 0}
+                fallback={<Typography sx={{ opacity: 0.8 }}>Aucun score pour le moment.</Typography>}
+              >
+                <Stack spacing={1}>
+                  <For each={items() ?? []}>
+                    {(row, idx) => (
+                      <Stack direction="row" spacing={2} alignItems="center">
+                        <Typography sx={{ width: '3ch', opacity: 0.8 }}>#{idx() + 1}</Typography>
+                        <Typography sx={{ flexGrow: 1, fontWeight: 700 }}>{row.player}</Typography>
+                        <Typography sx={{ opacity: 0.9 }}>{row.score}</Typography>
+                      </Stack>
+                    )}
+                  </For>
+                </Stack>
+              </Show>
+            </Show>
+          </CardContent>
+        </Card>
+
+        <Typography sx={{ opacity: 0.6, fontSize: 12 }}>
+          Note : cette page utilise l’API si configurée, sinon une version mock.
+        </Typography>
+      </Stack>
+    </Box>
+  )
+}
diff --git a/frontend/apps/web/src/routes/Profile.test.tsx b/frontend/apps/web/src/routes/Profile.test.tsx
new file mode 100644
index 0000000..a5180c1
--- /dev/null
+++ b/frontend/apps/web/src/routes/Profile.test.tsx
@@ -0,0 +1,11 @@
+import { render } from '@solidjs/testing-library'
+import { describe, expect, it } from 'vitest'
+
+import ProfileRoute from './Profile'
+
+describe('ProfileRoute', () => {
+  it('renders', () => {
+    const { getByText } = render(() => <ProfileRoute />)
+    expect(getByText('Profil')).toBeTruthy()
+  })
+})
diff --git a/frontend/apps/web/src/routes/Profile.tsx b/frontend/apps/web/src/routes/Profile.tsx
new file mode 100644
index 0000000..c6cfd29
--- /dev/null
+++ b/frontend/apps/web/src/routes/Profile.tsx
@@ -0,0 +1,56 @@
+import { createSignal } from 'solid-js'
+
+import Box from '@suid/material/Box'
+import Button from '@suid/material/Button'
+import Card from '@suid/material/Card'
+import CardContent from '@suid/material/CardContent'
+import Stack from '@suid/material/Stack'
+import TextField from '@suid/material/TextField'
+import Typography from '@suid/material/Typography'
+
+export default function ProfileRoute() {
+  const [name, setName] = createSignal(localStorage.getItem('kf.playerName') ?? '')
+
+  const save = () => {
+    localStorage.setItem('kf.playerName', name().trim())
+  }
+
+  return (
+    <Box>
+      <Card variant="outlined" sx={{ bgcolor: '#111827', borderColor: '#1f2937' }}>
+        <CardContent>
+          <Stack spacing={2}>
+            <Typography variant="h4" sx={{ fontWeight: 800 }}>
+              Profil
+            </Typography>
+            <Typography sx={{ opacity: 0.8 }}>Paramètres locaux (placeholder).</Typography>
+
+            <TextField
+              label="Nom de joueur"
+              value={name()}
+              onInput={(e) => setName(e.currentTarget.value)}
+              fullWidth
+              InputLabelProps={{ style: { color: '#cbd5e1' } }}
+              InputProps={{ style: { color: '#e5e7eb' } }}
+            />
+
+            <Stack direction={{ xs: 'column', sm: 'row' }} spacing={2}>
+              <Button variant="contained" onClick={save}>
+                Enregistrer
+              </Button>
+              <Button
+                variant="outlined"
+                onClick={() => {
+                  localStorage.removeItem('kf.playerName')
+                  setName('')
+                }}
+              >
+                Effacer
+              </Button>
+            </Stack>
+          </Stack>
+        </CardContent>
+      </Card>
+    </Box>
+  )
+}
diff --git a/frontend/apps/web/src/services/api.ts b/frontend/apps/web/src/services/api.ts
new file mode 100644
index 0000000..af012bf
--- /dev/null
+++ b/frontend/apps/web/src/services/api.ts
@@ -0,0 +1,33 @@
+type LeaderboardRow = {
+  player: string
+  score: number
+}
+
+const baseUrl = import.meta.env.VITE_API_BASE_URL as string | undefined
+
+async function json<T>(path: string): Promise<T> {
+  if (!baseUrl) {
+    throw new Error('API base URL not configured')
+  }
+  const res = await fetch(`${baseUrl}${path}`)
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return (await res.json()) as T
+}
+
+export const leaderboardClient = {
+  async top10(): Promise<LeaderboardRow[]> {
+    // When the backend exists, this should call the leaderboard-service.
+    // For now, return a mock if API is not set.
+    if (!baseUrl) {
+      return [
+        { player: 'Alice', score: 24 },
+        { player: 'Bob', score: 22 },
+        { player: 'Charlie', score: 20 },
+      ]
+    }
+
+    // Example endpoint; adjust when gateway routes are finalized
+    const resp = await json<{ items?: LeaderboardRow[] }>(`/leaderboard/top10`)
+    return resp.items ?? []
+  },
+}
diff --git a/frontend/apps/web/src/services/validation.ts b/frontend/apps/web/src/services/validation.ts
new file mode 100644
index 0000000..05741d5
--- /dev/null
+++ b/frontend/apps/web/src/services/validation.ts
@@ -0,0 +1,6 @@
+import { z } from 'zod'
+
+export const playerNameSchema = z
+  .string()
+  .min(2, 'Le nom doit faire au moins 2 caractères')
+  .max(50, 'Le nom doit faire au plus 50 caractères')
diff --git a/frontend/apps/web/src/styles/global.css b/frontend/apps/web/src/styles/global.css
index 0537e29..92e5758 100644
--- a/frontend/apps/web/src/styles/global.css
+++ b/frontend/apps/web/src/styles/global.css
@@ -1,26 +1,21 @@
 :root {
-  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
-  line-height: 1.5;
-  font-weight: 400;
-
-  color-scheme: light dark;
-  color: rgba(255, 255, 255, 0.87);
-  background-color: #242424;
-
-  font-synthesis: none;
-  text-rendering: optimizeLegibility;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
+  color-scheme: dark;
+  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, 'Apple Color Emoji',
+    'Segoe UI Emoji';
 }
 
-* {
-  box-sizing: border-box;
+html,
+body {
+  height: 100%;
   margin: 0;
   padding: 0;
 }
 
 #root {
-  max-width: 1280px;
-  margin: 0 auto;
-  padding: 2rem;
+  min-height: 100%;
+}
+
+a {
+  color: inherit;
+  text-decoration: none;
 }
diff --git a/frontend/apps/web/src/ui/AttemptIndicator.tsx b/frontend/apps/web/src/ui/AttemptIndicator.tsx
new file mode 100644
index 0000000..1ebe8eb
--- /dev/null
+++ b/frontend/apps/web/src/ui/AttemptIndicator.tsx
@@ -0,0 +1,32 @@
+import type { Component } from 'solid-js'
+
+import Box from '@suid/material/Box'
+import Stack from '@suid/material/Stack'
+import Typography from '@suid/material/Typography'
+
+const AttemptIndicator: Component<{ attemptsUsed: number; attemptsMax: number }> = (props) => {
+  const used = () => Math.max(0, Math.min(props.attemptsUsed, props.attemptsMax))
+
+  return (
+    <Stack direction="row" spacing={2} alignItems="center">
+      <Typography sx={{ opacity: 0.8 }}>Essais</Typography>
+      <Stack direction="row" spacing={0.5}>
+        {Array.from({ length: props.attemptsMax }).map((_, i) => (
+          <Box
+            sx={{
+              width: 10,
+              height: 10,
+              borderRadius: '50%',
+              bgcolor: i < used() ? '#ef4444' : '#334155',
+            }}
+          />
+        ))}
+      </Stack>
+      <Typography sx={{ opacity: 0.7, fontSize: 12 }}>
+        {Math.max(0, props.attemptsMax - used())} restant(s)
+      </Typography>
+    </Stack>
+  )
+}
+
+export default AttemptIndicator
diff --git a/frontend/apps/web/src/ui/ScoreDisplay.tsx b/frontend/apps/web/src/ui/ScoreDisplay.tsx
new file mode 100644
index 0000000..5280ed3
--- /dev/null
+++ b/frontend/apps/web/src/ui/ScoreDisplay.tsx
@@ -0,0 +1,9 @@
+import type { Component } from 'solid-js'
+
+import Chip from '@suid/material/Chip'
+
+const ScoreDisplay: Component<{ score: number }> = (props) => {
+  return <Chip label={`Score: ${props.score}`} color="primary" variant="outlined" />
+}
+
+export default ScoreDisplay
diff --git a/frontend/apps/web/src/ui/Timer.tsx b/frontend/apps/web/src/ui/Timer.tsx
new file mode 100644
index 0000000..8320e67
--- /dev/null
+++ b/frontend/apps/web/src/ui/Timer.tsx
@@ -0,0 +1,22 @@
+import type { Component } from 'solid-js'
+
+import Chip from '@suid/material/Chip'
+
+function formatMs(ms: number) {
+  const total = Math.ceil(ms / 1000)
+  const m = Math.floor(total / 60)
+  const s = total % 60
+  return `${m}:${s.toString().padStart(2, '0')}`
+}
+
+const Timer: Component<{ remainingMs: number }> = (props) => {
+  const color = () => {
+    if (props.remainingMs <= 10_000) return 'error'
+    if (props.remainingMs <= 60_000) return 'warning'
+    return 'default'
+  }
+
+  return <Chip label={formatMs(props.remainingMs)} color={color() as any} variant="outlined" />
+}
+
+export default Timer
diff --git a/frontend/apps/web/vitest.config.ts b/frontend/apps/web/vitest.config.ts
new file mode 100644
index 0000000..68e3449
--- /dev/null
+++ b/frontend/apps/web/vitest.config.ts
@@ -0,0 +1,7 @@
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+  test: {
+    environment: 'jsdom',
+  },
+})
diff --git a/frontend/shared/ui-components/src/AttemptDots.tsx b/frontend/shared/ui-components/src/AttemptDots.tsx
new file mode 100644
index 0000000..42517bf
--- /dev/null
+++ b/frontend/shared/ui-components/src/AttemptDots.tsx
@@ -0,0 +1,32 @@
+import type { Component } from 'solid-js'
+
+import Box from '@suid/material/Box'
+import Stack from '@suid/material/Stack'
+import Typography from '@suid/material/Typography'
+
+const AttemptDots: Component<{ attemptsUsed: number; attemptsMax: number }> = (props) => {
+  const used = () => Math.max(0, Math.min(props.attemptsUsed, props.attemptsMax))
+
+  return (
+    <Stack direction="row" spacing={2} alignItems="center">
+      <Typography sx={{ opacity: 0.8 }}>Essais</Typography>
+      <Stack direction="row" spacing={0.5}>
+        {Array.from({ length: props.attemptsMax }).map((_, i) => (
+          <Box
+            sx={{
+              width: 10,
+              height: 10,
+              borderRadius: '50%',
+              bgcolor: i < used() ? '#ef4444' : '#334155',
+            }}
+          />
+        ))}
+      </Stack>
+      <Typography sx={{ opacity: 0.7, fontSize: 12 }}>
+        {Math.max(0, props.attemptsMax - used())} restant(s)
+      </Typography>
+    </Stack>
+  )
+}
+
+export default AttemptDots
diff --git a/frontend/shared/ui-components/src/ScoreChip.tsx b/frontend/shared/ui-components/src/ScoreChip.tsx
new file mode 100644
index 0000000..69f6f71
--- /dev/null
+++ b/frontend/shared/ui-components/src/ScoreChip.tsx
@@ -0,0 +1,9 @@
+import type { Component } from 'solid-js'
+
+import Chip from '@suid/material/Chip'
+
+const ScoreChip: Component<{ score: number }> = (props) => {
+  return <Chip label={`Score: ${props.score}`} color="primary" variant="outlined" />
+}
+
+export default ScoreChip
diff --git a/frontend/shared/ui-components/src/TimerChip.tsx b/frontend/shared/ui-components/src/TimerChip.tsx
new file mode 100644
index 0000000..c1be83a
--- /dev/null
+++ b/frontend/shared/ui-components/src/TimerChip.tsx
@@ -0,0 +1,22 @@
+import type { Component } from 'solid-js'
+
+import Chip from '@suid/material/Chip'
+
+function formatMs(ms: number) {
+  const total = Math.ceil(ms / 1000)
+  const m = Math.floor(total / 60)
+  const s = total % 60
+  return `${m}:${s.toString().padStart(2, '0')}`
+}
+
+const TimerChip: Component<{ remainingMs: number }> = (props) => {
+  const color = () => {
+    if (props.remainingMs <= 10_000) return 'error'
+    if (props.remainingMs <= 60_000) return 'warning'
+    return 'default'
+  }
+
+  return <Chip label={formatMs(props.remainingMs)} color={color() as any} variant="outlined" />
+}
+
+export default TimerChip
diff --git a/frontend/shared/ui-components/src/index.ts b/frontend/shared/ui-components/src/index.ts
index ee9afc2..43c5a79 100644
--- a/frontend/shared/ui-components/src/index.ts
+++ b/frontend/shared/ui-components/src/index.ts
@@ -1,3 +1,4 @@
-// UI Components barrel export
-// Components will be added as they are developed
-export {}
+export { default as AttemptDots } from './AttemptDots'
+export { default as ScoreChip } from './ScoreChip'
+export { default as TimerChip } from './TimerChip'
+