diff --git a/public/index.html b/public/index.html
index 56a2312..435ee1c 100644
--- a/public/index.html
+++ b/public/index.html
@@ -187,6 +187,7 @@
         <details class="panel panelCollapsible" id="planetStatsDetails" open>
           <summary class="panelTitle panelTitleSummary">🪐 Statistiques Planétaires</summary>
           <pre id="details" class="details details--hidden">Les stats sont vides sauf à cliquer sur une tuile exploitable.</pre>
+          <div id="captorInfo" class="captorInfo hidden"></div>
         </details>
 
         <!-- Resources overview (collapsible) -->
@@ -286,6 +287,11 @@
 
       </aside>
 
+      <!-- Player list popup (shown on click of joueur count) -->
+      <div id="playerListPopup" class="playerListPopup hidden" role="tooltip">
+        <div id="playerListContent"></div>
+      </div>
+
       <!-- ── Galaxy (square, 1000×1000, fixed ratio) ────────────────────────── -->
       <main class="galaxyMain">
         <!-- Mobile burger button -->
diff --git a/public/src/api.js b/public/src/api.js
index b9e1615..4a5600d 100644
--- a/public/src/api.js
+++ b/public/src/api.js
@@ -108,6 +108,12 @@ export async function apiFetchActivePlayers() {
   return res.json();
 }
 
+export async function apiFetchActivePlayerNames() {
+  const res = await fetch("/api/active-players/names");
+  if (!res.ok) throw new Error("active_player_names_fetch_failed");
+  return res.json();
+}
+
 export async function apiFetchMilitaryDeductions() {
   const res = await fetch("/api/military-deductions");
   if (!res.ok) throw new Error("military_deductions_fetch_failed");
diff --git a/public/src/game.js b/public/src/game.js
index d481df3..cf2b317 100644
--- a/public/src/game.js
+++ b/public/src/game.js
@@ -1,6 +1,6 @@
 import { fnv1a32, hash2u32, mulberry32 } from "./rng.js";
 import { formatPlanet, generatePlanet } from "./planetGeneration.js";
-import { apiFetchConfig, apiFetchGrid, apiRevealCell, apiFetchEconScores, apiTickEconScores, apiFetchElementBonus, apiTickElementBonus, apiFetchDbInfo, apiFetchVictoryPoints, apiFetchActivePlayers, apiFetchMilitaryDeductions, apiMilitaryAttack, apiCaptureCell } from "./api.js";
+import { apiFetchConfig, apiFetchGrid, apiRevealCell, apiFetchEconScores, apiTickEconScores, apiFetchElementBonus, apiTickElementBonus, apiFetchDbInfo, apiFetchVictoryPoints, apiFetchActivePlayers, apiFetchActivePlayerNames, apiFetchMilitaryDeductions, apiMilitaryAttack, apiCaptureCell } from "./api.js";
 import { computeTeamIncome, computeTeamElementBonus, computeTeamElementBonusDetailed, renderResourceTable, renderElementBonusTable, setEconSort, getEconSort, setElemSort, getElemSort, computeTeamMilitaryDetailed, renderMilitaryTable, setMilSort, getMilSort } from "./economy.js";
 
 // ── Constants ─────────────────────────────────────────────────────────────────
@@ -234,6 +234,9 @@ const captureModalBodyEl = document.getElementById("captureModalBody");
 const captureModalYesEl  = document.getElementById("captureModalYes");
 const captureModalNoEl   = document.getElementById("captureModalNo");
 const teamQuotaEl      = document.getElementById("teamActionsRemaining");
+const captorInfoEl     = document.getElementById("captorInfo");
+const playerListPopupEl = document.getElementById("playerListPopup");
+const playerListContentEl = document.getElementById("playerListContent");
 // ── Cell helpers ──────────────────────────────────────────────────────────────
 
 export function cellKey(x, y) { return `${x},${y}`; }
@@ -325,6 +328,64 @@ export async function fetchAndApplyActivePlayers() {
   } catch { /* ignore */ }
 }
 
+// ── Player list popup (click on joueur count) ─────────────────────────────────
+
+function closePlayerListPopup() {
+  if (playerListPopupEl) playerListPopupEl.classList.add("hidden");
+}
+
+async function openPlayerListPopup(anchorEl, team) {
+  if (!playerListPopupEl || !playerListContentEl) return;
+  try {
+    const names = await apiFetchActivePlayerNames();
+    const list = names[team] ?? [];
+    if (!list.length) {
+      playerListContentEl.innerHTML = `<span class="playerListEmpty">Aucun joueur actif</span>`;
+    } else {
+      const teamClass = `playerListName--${team}`;
+      playerListContentEl.innerHTML =
+        list.map(u => `<div class="${escHtml(teamClass)}">${escHtml(u)}</div>`).join("");
+    }
+    // Position popup below the anchor
+    const rect = anchorEl.getBoundingClientRect();
+    const parentRect = anchorEl.closest(".infoColumn, aside")?.getBoundingClientRect() ?? { left: 0, top: 0 };
+    playerListPopupEl.style.left = `${rect.left - parentRect.left}px`;
+    playerListPopupEl.style.top  = `${rect.bottom - parentRect.top + 4}px`;
+    playerListPopupEl.classList.remove("hidden");
+    playerListPopupEl.dataset.team = team;
+  } catch { /* ignore */ }
+}
+
+if (activeCountBlueEl) {
+  activeCountBlueEl.style.cursor = "pointer";
+  activeCountBlueEl.addEventListener("click", (ev) => {
+    ev.stopPropagation();
+    if (playerListPopupEl && !playerListPopupEl.classList.contains("hidden") && playerListPopupEl.dataset.team === "blue") {
+      closePlayerListPopup();
+    } else {
+      openPlayerListPopup(activeCountBlueEl, "blue");
+    }
+  });
+}
+
+if (activeCountRedEl) {
+  activeCountRedEl.style.cursor = "pointer";
+  activeCountRedEl.addEventListener("click", (ev) => {
+    ev.stopPropagation();
+    if (playerListPopupEl && !playerListPopupEl.classList.contains("hidden") && playerListPopupEl.dataset.team === "red") {
+      closePlayerListPopup();
+    } else {
+      openPlayerListPopup(activeCountRedEl, "red");
+    }
+  });
+}
+
+document.addEventListener("click", (ev) => {
+  if (playerListPopupEl && !playerListPopupEl.contains(ev.target)) {
+    closePlayerListPopup();
+  }
+});
+
 // ── Element bonus ─────────────────────────────────────────────────────────────
 
 let elemBonusBlue = 0;
@@ -534,6 +595,7 @@ export async function fetchGridForSeed(seed, depth = 0) {
       controlledBy: row.discovered_by ?? row.discoveredBy ?? null,
       hasPlanet:    Boolean(row.has_planet),
       planet:       row.planet_json ?? null,
+      capturedBy:   row.captured_by ?? row.capturedBy ?? null,
     });
   }
 }
@@ -696,6 +758,20 @@ function refreshCursorFromLast() {
 
 // ── Selection display ─────────────────────────────────────────────────────────
 
+/** Escapes a string for safe HTML insertion. */
+function escHtml(str) {
+  return String(str).replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;").replace(/"/g, "&quot;");
+}
+
+/** Shows or hides the captor info banner below planet stats. */
+function showCaptorInfo(capturedBy, team) {
+  if (!captorInfoEl) return;
+  if (!capturedBy) { captorInfoEl.className = "captorInfo hidden"; return; }
+  const teamClass = team === "blue" ? "captorInfo--blue" : team === "red" ? "captorInfo--red" : "";
+  captorInfoEl.className = `captorInfo ${teamClass}`;
+  captorInfoEl.innerHTML = `Capturée par <strong>${escHtml(capturedBy)}</strong>`;
+}
+
 function applyRevealPayload(cell) {
   const _revealKey = cellKey(cell.x, cell.y);
   markTileReveal(_revealKey);
@@ -703,16 +779,19 @@ function applyRevealPayload(cell) {
     controlledBy: cell.discoveredBy ?? null,
     hasPlanet:    Boolean(cell.hasPlanet),
     planet:       cell.planet ?? null,
+    capturedBy:   cell.capturedBy ?? null,
   });
   details.classList.remove("details--hidden");
   if (!cell.exploitable) {
     hint.textContent    = `(${cell.x},${cell.y}) Inexploitable`;
     details.textContent = `Tuile (${cell.x},${cell.y})\n\nStatus : Inexploitable`;
+    showCaptorInfo(null, null);
     return;
   }
   if (!cell.hasPlanet) {
     hint.textContent    = `(${cell.x},${cell.y}) Vide`;
     details.textContent = `Tuile (${cell.x},${cell.y})\n\nStatus : Vide`;
+    showCaptorInfo(null, null);
     return;
   }
   const controlStatus = cell.discoveredBy === null
@@ -722,6 +801,7 @@ function applyRevealPayload(cell) {
       : `Contrôlée par l'adversaire`;
   hint.textContent    = `(${cell.x},${cell.y}) Planète présente`;
   details.textContent = `Tuile (${cell.x},${cell.y})\n\nStatus : ${controlStatus}\n\n${formatPlanet(cell.planet)}`;
+  showCaptorInfo(cell.capturedBy ?? null, cell.discoveredBy);
 }
 
 function showLocalSelection(x, y) {
@@ -732,11 +812,13 @@ function showLocalSelection(x, y) {
   if (!isExploitable(x, y)) {
     hint.textContent    = `(${x},${y}) Inexploitable`;
     details.textContent = `Tuile (${x},${y})\n\nStatus : Inexploitable`;
+    showCaptorInfo(null, null);
     return;
   }
   if (!meta.hasPlanet) {
     hint.textContent    = `(${x},${y}) Vide`;
     details.textContent = `Tuile (${x},${y})\n\nStatus : Vide`;
+    showCaptorInfo(null, null);
     return;
   }
   let planet = meta.planet;
@@ -751,6 +833,7 @@ function showLocalSelection(x, y) {
       : `Contrôlée par l'adversaire`;
   hint.textContent    = `(${x},${y}) Planète présente`;
   details.textContent = `Tuile (${x},${y})\n\nStatus : ${controlStatus}\n\n${formatPlanet(planet)}`;
+  showCaptorInfo(meta.capturedBy ?? null, meta.controlledBy);
 }
 
 // ── Military attack modal ────────────────────────────────────────────────────
@@ -896,7 +979,7 @@ async function onCanvasClick(ev) {
     if (!res.ok) { hint.textContent = "Erreur lors de la capture."; return; }
     const data = await res.json();
     markTileReveal(key);
-    cells.set(key, { ...meta, controlledBy: currentTeam });
+    cells.set(key, { ...meta, controlledBy: currentTeam, capturedBy: data.cell?.capturedBy ?? null });
     if (data.teamActionsRemaining !== undefined && data.teamActionsRemaining !== null) {
       teamActionsRemaining = data.teamActionsRemaining;
       updateTeamQuotaDisplay();
diff --git a/public/style.css b/public/style.css
index 2311e89..7f2e117 100644
--- a/public/style.css
+++ b/public/style.css
@@ -1231,4 +1231,68 @@ canvas {
   .scoreStatVal {
     font-size: 16px;
   }
+}
+
+/* ── Captor info banner ────────────────────────────────────────────────────── */
+
+.captorInfo {
+  padding: 6px 14px 10px;
+  font-family: "Courier New", Courier, monospace;
+  font-size: 11px;
+  opacity: 0.85;
+}
+
+.captorInfo.hidden {
+  display: none;
+}
+
+.captorInfo--blue {
+  color: rgba(90, 200, 255, 0.9);
+}
+
+.captorInfo--red {
+  color: rgba(220, 75, 85, 0.9);
+}
+
+/* ── Player list popup ─────────────────────────────────────────────────────── */
+
+.playerListPopup {
+  position: absolute;
+  z-index: 30;
+  min-width: 120px;
+  max-width: 200px;
+  border-radius: 10px;
+  border: 1px solid rgba(255, 255, 255, 0.13);
+  background: rgba(12, 18, 38, 0.97);
+  backdrop-filter: blur(8px);
+  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
+  padding: 8px 10px;
+  font-size: 11px;
+  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
+  pointer-events: auto;
+}
+
+.playerListPopup.hidden {
+  display: none;
+}
+
+.playerListName--blue {
+  color: rgba(90, 200, 255, 0.9);
+  padding: 2px 0;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.playerListName--red {
+  color: rgba(220, 75, 85, 0.9);
+  padding: 2px 0;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.playerListEmpty {
+  color: rgba(233, 238, 246, 0.4);
+  font-style: italic;
 }
\ No newline at end of file
diff --git a/server/db/gameDb.js b/server/db/gameDb.js
index f54b92d..6b5220f 100644
--- a/server/db/gameDb.js
+++ b/server/db/gameDb.js
@@ -140,6 +140,10 @@ export async function initGameSchema() {
     ALTER TABLE grid_cells ADD CONSTRAINT grid_cells_discovered_by_check
       CHECK (discovered_by IS NULL OR discovered_by IN ('blue', 'red'));
   `);
+  // ── Store the username of whoever last captured a tile ────────────────────
+  await pool.query(`
+    ALTER TABLE grid_cells ADD COLUMN IF NOT EXISTS captured_by TEXT;
+  `);
 }
 
 // ── World-seed epoch ──────────────────────────────────────────────────────────
@@ -203,7 +207,7 @@ export async function ensureSeedEpoch() {
 
 export async function getGridCells(worldSeed) {
   const { rows } = await pool.query(
-    `SELECT x, y, exploitable, has_planet, planet_json, discovered_by
+    `SELECT x, y, exploitable, has_planet, planet_json, discovered_by, captured_by
      FROM grid_cells WHERE world_seed = $1`,
     [worldSeed]
   );
@@ -246,7 +250,7 @@ export async function insertTeamVisibility(worldSeed, team, x, y) {
 /** Returns all grid cells that are visible to a given team. */
 export async function getTeamVisibleCells(worldSeed, team) {
   const { rows } = await pool.query(
-    `SELECT gc.x, gc.y, gc.exploitable, gc.has_planet, gc.planet_json, gc.discovered_by
+    `SELECT gc.x, gc.y, gc.exploitable, gc.has_planet, gc.planet_json, gc.discovered_by, gc.captured_by
      FROM grid_cells gc
      JOIN team_cell_visibility tcv
        ON tcv.world_seed = gc.world_seed AND tcv.x = gc.x AND tcv.y = gc.y
@@ -258,7 +262,7 @@ export async function getTeamVisibleCells(worldSeed, team) {
 
 export async function getExistingCell(seed, x, y) {
   const { rows } = await pool.query(
-    `SELECT x, y, exploitable, has_planet, planet_json, discovered_by
+    `SELECT x, y, exploitable, has_planet, planet_json, discovered_by, captured_by
      FROM grid_cells WHERE world_seed = $1 AND x = $2 AND y = $3`,
     [seed, x, y]
   );
@@ -431,13 +435,26 @@ export async function getCellAttackCount(worldSeed, x, y) {
   return rows[0]?.cnt ?? 0;
 }
 
-export async function setTileOwner(worldSeed, x, y, team) {
+export async function setTileOwner(worldSeed, x, y, team, capturedBy = null) {
   await pool.query(
-    `UPDATE grid_cells SET discovered_by = $1 WHERE world_seed = $2 AND x = $3 AND y = $4`,
-    [team, worldSeed, x, y]
+    `UPDATE grid_cells SET discovered_by = $1, captured_by = $2 WHERE world_seed = $3 AND x = $4 AND y = $5`,
+    [team, capturedBy, worldSeed, x, y]
   );
 }
 
+/** Returns per-team lists of user IDs who have been active this seed epoch. */
+export async function getActivePlayerIds(worldSeed) {
+  const { rows } = await pool.query(
+    `SELECT team, user_id FROM user_cooldowns WHERE world_seed = $1`,
+    [worldSeed]
+  );
+  const result = { blue: [], red: [] };
+  for (const row of rows) {
+    if (result[row.team]) result[row.team].push(row.user_id);
+  }
+  return result;
+}
+
 // ── Team action quota (daily, independent of world seed) ─────────────────────
 
 export async function getTeamActionsRow(team) {
diff --git a/server/db/usersDb.js b/server/db/usersDb.js
index 9d3d76f..bd89dc3 100644
--- a/server/db/usersDb.js
+++ b/server/db/usersDb.js
@@ -75,6 +75,16 @@ export async function getTeamPlayerCounts() {
   return result;
 }
 
+/** Returns username and team for each of the given user IDs. */
+export async function getUsersByIds(ids) {
+  if (!ids.length) return [];
+  const { rows } = await usersPool.query(
+    `SELECT id, username, team FROM users WHERE id = ANY($1::int[])`,
+    [ids]
+  );
+  return rows;
+}
+
 // ── User action quota ─────────────────────────────────────────────────────────
 
 /** Returns the current quota row for a user, or null if it doesn't exist. */
diff --git a/server/helpers/cell.js b/server/helpers/cell.js
index d7fa7b3..a63d30f 100644
--- a/server/helpers/cell.js
+++ b/server/helpers/cell.js
@@ -51,5 +51,6 @@ export function rowToCellPayload(row) {
     hasPlanet: row.has_planet,
     planet: row.planet_json ?? null,
     discoveredBy: row.discovered_by,
+    capturedBy: row.captured_by ?? null,
   };
 }
\ No newline at end of file
diff --git a/server/routes/game.js b/server/routes/game.js
index 33cbfe8..8123ec5 100644
--- a/server/routes/game.js
+++ b/server/routes/game.js
@@ -19,6 +19,7 @@ import {
   getDbCreatedAt,
   getVictoryPoints,
   getActivePlayerCounts,
+  getActivePlayerIds,
   getMilitaryDeductions,
   addMilitaryDeduction,
   recordCellAttack,
@@ -37,6 +38,7 @@ import {
   getUserActionsRow,
   resetUserActions,
   decrementUserActions,
+  getUsersByIds,
 } from "../db/usersDb.js";
 import { computeCell, rowToCellPayload } from "../helpers/cell.js";
 import { computeTeamMilitaryPower } from "../helpers/economy.js";
@@ -252,7 +254,7 @@ router.post("/cell/capture", authMiddleware, async (req, res) => {
     }
 
     // Transfer ownership to capturing team
-    await setTileOwner(worldSeed, x, y, team);
+    await setTileOwner(worldSeed, x, y, team, req.user.username);
 
     const updatedCell = await getExistingCell(worldSeed, x, y);
     const updatedTeamRow = await getTeamActionsRow(team);
@@ -391,6 +393,24 @@ router.get("/active-players", async (_req, res) => {
   }
 });
 
+// GET /api/active-players/names
+router.get("/active-players/names", async (_req, res) => {
+  try {
+    const worldSeed = await ensureSeedEpoch();
+    const playerIds = await getActivePlayerIds(worldSeed);
+    const allIds = [...playerIds.blue, ...playerIds.red];
+    const users = await getUsersByIds(allIds);
+    const result = { blue: [], red: [] };
+    for (const user of users) {
+      if (result[user.team]) result[user.team].push(user.username);
+    }
+    res.json(result);
+  } catch (e) {
+    console.error(e);
+    res.status(500).json({ error: "database_error" });
+  }
+});
+
 // GET /api/scores
 router.get("/scores", async (_req, res) => {
   try {
@@ -449,7 +469,7 @@ router.post("/military/attack", authMiddleware, async (req, res) => {
     await addMilitaryDeduction(worldSeed, attackingTeam, COST_BILLIONS);
 
     // Transfer tile ownership to the attacking team
-    await setTileOwner(worldSeed, x, y, attackingTeam);
+    await setTileOwner(worldSeed, x, y, attackingTeam, req.user.username);
 
     // Record the attack event
     await recordCellAttack(worldSeed, x, y, attackingTeam);