diff --git a/en/index.html b/en/index.html
index a1f3826..f156ad3 100644
--- a/en/index.html
+++ b/en/index.html
@@ -107,6 +107,7 @@ <h2 class="section-title" id="tools-title">Go deeper</h2>
       <div class="panel">
         <article class="card card-link-wrap"><p class="eyebrow">Archive</p><h3 class="card-title"><a class="card-link" href="../archive/2219-signal/en/">The 2219 signal</a></h3><p>The log of the first days, who heard it when, and the beacon to fold yourself.</p><p class="card-cta">Open <span>→</span></p></article>
         <article class="card card-link-wrap"><p class="eyebrow">Letters</p><h3 class="card-title"><a class="card-link" href="../archive/2219-signal/en/#write">Write back</a></h3><p>Write to Ross 128 b and watch your letter travel, kilometre by kilometre.</p><p class="card-cta">Open <span>→</span></p></article>
+        <article class="card card-link-wrap"><p class="eyebrow">Game</p><h3 class="card-title"><a class="card-link" href="https://iron-bamboo-initiative.pages.dev/#life">The Relay</a></h3><p>Chapter 1: be born somewhere in the Solar System at this moment of 2219 and live one life. Answers come once every 22 years: how many will you hear? Then your child carries on, all the way to Iron Bamboo in 2620.</p><p class="card-cta">Start <span>→</span></p></article>
         <article class="card card-link-wrap"><p class="eyebrow">Live</p><h3 class="card-title"><a class="card-link" href="../pulsars/en/">Pulsar ledger</a></h3><p>The pulsars that keep the MC clock, ticking live, and the timing residuals where the signal first showed up.</p><p class="card-cta">Open <span>→</span></p></article>
         <article class="card card-link-wrap"><p class="eyebrow">For builders</p><h3 class="card-title"><a class="card-link" href="../kit/">Phase 2 design kit</a></h3><p>137: the shared look of every phase 2 site, named for the number both worlds share and drawn in the pixels of their picture.</p><p class="card-cta">Open <span>→</span></p></article>
       </div>
diff --git a/index.html b/index.html
index 450fd58..0d3658e 100644
--- a/index.html
+++ b/index.html
@@ -107,6 +107,7 @@ <h2 class="section-title" id="tools-title">继续深入</h2>
       <div class="panel">
         <article class="card card-link-wrap"><p class="eyebrow">档案</p><h3 class="card-title"><a class="card-link" href="archive/2219-signal/">2219 罗斯128信号</a></h3><p>最初几天的记录、谁在什么时候听到，以及可以亲手折开的信标。</p><p class="card-cta">打开 <span>→</span></p></article>
         <article class="card card-link-wrap"><p class="eyebrow">书信</p><h3 class="card-title"><a class="card-link" href="archive/2219-signal/#write">写回信</a></h3><p>给罗斯128 b写一封信，看它一公里一公里地往前走。</p><p class="card-cta">打开 <span>→</span></p></article>
+        <article class="card card-link-wrap"><p class="eyebrow">游戏</p><h3 class="card-title"><a class="card-link" href="https://iron-bamboo-initiative.pages.dev/#life">接力</a></h3><p>第一章：在 2219 年此刻出生在太阳系某处，过完一生。回答每 22 年才到一次，你能听到几次？之后由你的孩子接着活，一直接到 2620 年的铁竹。</p><p class="card-cta">开始 <span>→</span></p></article>
         <article class="card card-link-wrap"><p class="eyebrow">实时</p><h3 class="card-title"><a class="card-link" href="pulsars/">脉冲星账本</a></h3><p>维持脉币时钟的脉冲星实时跳动，以及信号最先出现的计时残差。</p><p class="card-cta">打开 <span>→</span></p></article>
         <article class="card card-link-wrap"><p class="eyebrow">给开发者</p><h3 class="card-title"><a class="card-link" href="kit/">第二阶段设计套件</a></h3><p>137：每个第二阶段网站共用的样式，以两个世界共有的那个数命名，由他们那幅图的像素拼成。</p><p class="card-cta">打开 <span>→</span></p></article>
       </div>
diff --git a/kit/nav.cn.json b/kit/nav.cn.json
index 8ae3c89..5c3c033 100644
--- a/kit/nav.cn.json
+++ b/kit/nav.cn.json
@@ -48,6 +48,12 @@
       "url": "https://interstellar.interimm.org/drift/",
       "children": []
     },
+    {
+      "id": "life",
+      "name": "接力（游戏）",
+      "url": "https://iron-bamboo-initiative.pages.dev/#life",
+      "children": []
+    },
     {
       "id": "explorer",
       "name": "系外行星图鉴",
@@ -104,6 +110,10 @@
           "title": "两星漂移 · 太阳与罗斯128",
           "url": "https://interstellar.interimm.org/drift/"
         },
+        {
+          "title": "接力 · 从 2219 到 2620 的游戏",
+          "url": "https://iron-bamboo-initiative.pages.dev/#life"
+        },
         {
           "title": "系外行星图鉴（英文）",
           "url": "https://interimm.org/exoplanet-explorer/"
diff --git a/kit/nav.en.json b/kit/nav.en.json
index 2d3ec03..98933c7 100644
--- a/kit/nav.en.json
+++ b/kit/nav.en.json
@@ -48,6 +48,12 @@
       "url": "https://interstellar.interimm.org/drift/en/",
       "children": []
     },
+    {
+      "id": "life",
+      "name": "The Relay (game)",
+      "url": "https://iron-bamboo-initiative.pages.dev/#life",
+      "children": []
+    },
     {
       "id": "explorer",
       "name": "Exoplanet explorer",
@@ -104,6 +110,10 @@
           "title": "Drift · Sun and Ross 128",
           "url": "https://interstellar.interimm.org/drift/en/"
         },
+        {
+          "title": "The Relay · a game from 2219 to 2620",
+          "url": "https://iron-bamboo-initiative.pages.dev/#life"
+        },
         {
           "title": "Exoplanet explorer",
           "url": "https://interimm.org/exoplanet-explorer/"