diff --git a/util/src/main/kotlin/org/openrs2/util/collect/UniqueQueue.kt b/util/src/main/kotlin/org/openrs2/util/collect/UniqueQueue.kt
index 85ab246b..d6f4e87f 100644
--- a/util/src/main/kotlin/org/openrs2/util/collect/UniqueQueue.kt
+++ b/util/src/main/kotlin/org/openrs2/util/collect/UniqueQueue.kt
@@ -13,6 +13,20 @@ public class UniqueQueue<T> {
         return false
     }
 
+    public operator fun plusAssign(v: T) {
+        add(v)
+    }
+
+    public fun addAll(vs: Iterable<T>) {
+        for (v in vs) {
+            add(v)
+        }
+    }
+
+    public operator fun plusAssign(vs: Iterable<T>) {
+        addAll(vs)
+    }
+
     public fun poll(): T? {
         val v = queue.removeFirstOrNull()
         if (v != null) {
@@ -22,4 +36,9 @@ public class UniqueQueue<T> {
 
         return null
     }
+
+    public fun clear() {
+        queue.clear()
+        set.clear()
+    }
 }
diff --git a/util/src/test/kotlin/org/openrs2/util/collect/UniqueQueueTest.kt b/util/src/test/kotlin/org/openrs2/util/collect/UniqueQueueTest.kt
index 09302967..535699c3 100644
--- a/util/src/test/kotlin/org/openrs2/util/collect/UniqueQueueTest.kt
+++ b/util/src/test/kotlin/org/openrs2/util/collect/UniqueQueueTest.kt
@@ -18,4 +18,24 @@ class UniqueQueueTest {
         assertEquals("b", queue.poll())
         assertNull(queue.poll())
     }
+
+    @Test
+    fun testAddAll() {
+        val queue = UniqueQueue<String>()
+        queue.addAll(listOf("a", "b", "a"))
+
+        assertEquals("a", queue.poll())
+        assertEquals("b", queue.poll())
+        assertNull(queue.poll())
+    }
+
+    @Test
+    fun testClear() {
+        val queue = UniqueQueue<String>()
+        assertTrue(queue.add("a"))
+
+        queue.clear()
+
+        assertNull(queue.poll())
+    }
 }