diff --git a/src/Updux.js b/src/Updux.js
index f46a1cc..eeaa6e8 100644
--- a/src/Updux.js
+++ b/src/Updux.js
@@ -1,5 +1,7 @@
 import moize from 'moize';
 import u from '@yanick/updeep';
+import { createStore as reduxCreateStore } from 'redux';
+import { mapValues } from 'lodash-es';
 
 import { buildInitial } from './buildInitial/index.js';
 import { buildActions } from './buildActions/index.js';
@@ -74,13 +76,16 @@ export class Updux {
     addAction(type, payloadFunc) {
         const theAction = action(type, payloadFunc);
 
-        this.#actions = u({ [type]: theAction }, this.#actions);
+        this.#actions = { ...this.#actions, [type]: theAction };
 
         return theAction;
     }
 
     addSelector(name, func) {
-        this.#selectors[name] = func;
+        this.#selectors = {
+            ...this.#selectors,
+            [name]: func,
+        };
         return func;
     }
 
@@ -94,4 +99,28 @@ export class Updux {
 
         return this;
     }
+
+    createStore() {
+        const store = reduxCreateStore(this.reducer);
+
+        store.actions = this.actions;
+
+        store.selectors = mapValues(this.selectors, (selector) => {
+            return (...args) => {
+                let result = selector(store.getState());
+
+                if (typeof result === 'function') return result(...args);
+
+                return result;
+            };
+        });
+
+        for (const action in this.actions) {
+            store.dispatch[action] = (...args) => {
+                return store.dispatch(this.actions[action](...args));
+            };
+        }
+
+        return store;
+    }
 }
diff --git a/src/Updux.test.js b/src/Updux.test.js
index 0d371ef..da09330 100644
--- a/src/Updux.test.js
+++ b/src/Updux.test.js
@@ -95,7 +95,7 @@ test('basic selectors', { todo: true }, async (t) => {
     t.equal(store.selectors.getAdd(7), 8);
 });
 
-test('mutations', { todo: true }, async () => {
+test('mutations', { todo: false }, async (t) => {
     const alpha = new Updux({
         initial: { quux: 3 },
     });
diff --git a/src/actions.js b/src/actions.js
index dd6b6a6..ab7b7c7 100644
--- a/src/actions.js
+++ b/src/actions.js
@@ -2,7 +2,11 @@ export function action(type, payloadFunction = null) {
     const generator = function (payloadArg) {
         const result = { type };
 
-        if (payloadFunction) result.payload = payloadFunction(payloadArg);
+        if (payloadFunction) {
+            result.payload = payloadFunction(payloadArg);
+        } else {
+            if (payloadArg !== undefined) result.payload = payloadArg;
+        }
 
         return result;
     };