diff --git a/namerena-runner/src/engine.rs b/namerena-runner/src/engine.rs
new file mode 100644
index 0000000..b5615c9
--- /dev/null
+++ b/namerena-runner/src/engine.rs
@@ -0,0 +1,14 @@
+
+pub mod runners {
+
+    pub struct PlayerGroup {
+        players: Vec<Player>,
+    }
+
+    pub struct Runner {
+        /// 应该是一个 Rc4 实例类似物
+        seed: u32,
+        /// 所有玩家 (包括 boss)
+        players: Vec<PlayerGroup>
+    }
+}
diff --git a/namerena-runner/src/main.rs b/namerena-runner/src/main.rs
index 5eab738..217496d 100644
--- a/namerena-runner/src/main.rs
+++ b/namerena-runner/src/main.rs
@@ -1,5 +1,7 @@
 /// 万里长征, 始于足下
+
 mod name;
+mod engine;
 mod rc4;
 
 fn main() {