diff --git a/GameEngine/src/main/java/gameEngine/entites/gameComponents/Collider.java b/GameEngine/src/main/java/gameEngine/entites/gameComponents/Collider.java
new file mode 100644
index 0000000..e90c85b
--- /dev/null
+++ b/GameEngine/src/main/java/gameEngine/entites/gameComponents/Collider.java
@@ -0,0 +1,107 @@
+package gameEngine.entites.gameComponents;
+
+import gameEngine.entites.Entity;
+import gameEngine.entites.GameObject;
+import gameEngine.views.Window;
+
+public class Collider extends GameComponent {
+    private GameObject parent;
+    private boolean isPassable; // すり抜け可能かどうか
+
+    public Collider(GameObject parent, boolean isPassable) {
+        this.parent = parent;
+        this.isPassable = isPassable;
+    }
+
+    @Override
+    public GameComponent copy() {
+        return new Collider(parent, isPassable);
+    }
+
+    @Override
+    public void init() {
+    }
+
+    @Override
+    public void update() {
+        for (Entity other : Window.get().getScene().entities.values()) {
+            GameObject otherObject = (GameObject) other;
+            if (otherObject == parent) continue; // 自分自身は無視
+
+            Collider otherCollider = otherObject.getComponent(Collider.class);
+            if (otherCollider != null && isCollidingWith(otherObject)) {
+                System.out.println("Collision detected between "
+                        + parent.getName() + " and " + otherObject.getName());
+
+                if (!isPassable && !otherCollider.isPassable) {
+                    resolveCollision(otherObject);
+                }
+            }
+        }
+    }
+
+    private boolean isCollidingWith(GameObject other) {
+        Mesh thisMesh = parent.getComponent(Mesh.class);
+        Mesh otherMesh = other.getComponent(Mesh.class);
+
+        if (thisMesh == null || otherMesh == null) {
+            return false; // Meshがない場合は判定できない
+        }
+
+        float thisLeft = parent.transform.position.x;
+        float thisRight = thisLeft + thisMesh.getDisplayedWidth();
+        float thisTop = parent.transform.position.y;
+        float thisBottom = thisTop + thisMesh.getDisplayedHeight();
+
+        float otherLeft = other.transform.position.x;
+        float otherRight = otherLeft + otherMesh.getDisplayedWidth();
+        float otherTop = other.transform.position.y;
+        float otherBottom = otherTop + otherMesh.getDisplayedHeight();
+
+        return thisRight > otherLeft && thisLeft < otherRight &&
+                thisBottom > otherTop && thisTop < otherBottom;
+    }
+
+    private void resolveCollision(GameObject other) {
+        // 衝突を解消する処理
+        Mesh thisMesh = parent.getComponent(Mesh.class);
+        Mesh otherMesh = other.getComponent(Mesh.class);
+
+        if (thisMesh == null || otherMesh == null) {
+            return;
+        }
+
+        float thisLeft = parent.transform.position.x;
+        float thisRight = thisLeft + thisMesh.getDisplayedWidth();
+        float thisTop = parent.transform.position.y;
+        float thisBottom = thisTop + thisMesh.getDisplayedHeight();
+
+        float otherLeft = other.transform.position.x;
+        float otherRight = otherLeft + otherMesh.getDisplayedWidth();
+        float otherTop = other.transform.position.y;
+        float otherBottom = otherTop + otherMesh.getDisplayedHeight();
+
+        float overlapX = Math.min(thisRight, otherRight) - Math.max(thisLeft, otherLeft);
+        float overlapY = Math.min(thisBottom, otherBottom) - Math.max(thisTop, otherTop);
+
+        if (overlapX < overlapY) {
+            // 横方向の重なりを解消
+            if (thisLeft < otherLeft) {
+                parent.transform.position.x -= overlapX;
+            } else {
+                parent.transform.position.x += overlapX;
+            }
+        } else {
+            // 縦方向の重なりを解消
+            if (thisTop < otherTop) {
+                parent.transform.position.y -= overlapY;
+            } else {
+                parent.transform.position.y += overlapY;
+            }
+        }
+    }
+
+    public boolean isPassable() {
+        return isPassable;
+    }
+}