diff --git a/src/__tests__/camelCase-test.js b/src/__tests__/camelCase-test.js
new file mode 100644
index 00000000..3bc7408e
--- /dev/null
+++ b/src/__tests__/camelCase-test.js
@@ -0,0 +1,16 @@
+import camelCase from '../camelCase';
+import { expect } from 'chai';
+
+describe('camelCase', () => {
+  it('should camel case a conventional action type', () => {
+    expect(camelCase('MY_ACTION')).to.equal('myAction');
+  });
+
+  it('should include forward slashes in words', () => {
+    expect(camelCase('NAMESPACE/MY_ACTION')).to.equal('namespace/myAction');
+  });
+
+  it('should do nothing to an already camel-cased action type', () => {
+    expect(camelCase('myAction')).to.equal('myAction');
+  });
+});
diff --git a/src/__tests__/createActions-test.js b/src/__tests__/createActions-test.js
index 8f6014f4..2f9c23f3 100644
--- a/src/__tests__/createActions-test.js
+++ b/src/__tests__/createActions-test.js
@@ -105,6 +105,22 @@ describe('createActions', () => {
     });
   });
 
+  it('should honor special delimiters in action types', () => {
+    const { 'p/actionOne': pActionOne, 'q/actionTwo': qActionTwo } = createActions({
+      'P/ACTION_ONE': (key, value) => ({ [key]: value }),
+      'Q/ACTION_TWO': (first, second) => ([first, second])
+    });
+
+    expect(pActionOne('value', 1)).to.deep.equal({
+      type: 'P/ACTION_ONE',
+      payload: { value: 1 }
+    });
+    expect(qActionTwo('value', 2)).to.deep.equal({
+      type: 'Q/ACTION_TWO',
+      payload: ['value', 2]
+    });
+  });
+
   it('should use the identity if the payload creator is undefined in array form', () => {
     const { action1, action2 } = createActions({
       ACTION_1: [
diff --git a/src/camelCase.js b/src/camelCase.js
new file mode 100644
index 00000000..d8214897
--- /dev/null
+++ b/src/camelCase.js
@@ -0,0 +1,14 @@
+// based on https://github.com/lodash/lodash/blob/4.17.2/lodash.js#L14100
+// eslint-disable-next-line max-len
+const wordPattern = /[A-Z\xc0-\xd6\xd8-\xde]?[a-z\xdf-\xf6\xf8-\xff]+(?:['’](?:d|ll|m|re|s|t|ve))?(?=[\xac\xb1\xd7\xf7\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\xbf\u2000-\u206f \t\x0b\f\xa0\ufeff\n\r\u2028\u2029\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000]|[A-Z\xc0-\xd6\xd8-\xde]|$)|(?:[A-Z\xc0-\xd6\xd8-\xde]|[^\ud800-\udfff\xac\xb1\xd7\xf7\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\xbf\u2000-\u206f \t\x0b\f\xa0\ufeff\n\r\u2028\u2029\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\d+\u2700-\u27bfa-z\xdf-\xf6\xf8-\xffA-Z\xc0-\xd6\xd8-\xde])+(?:['’](?:D|LL|M|RE|S|T|VE))?(?=[\xac\xb1\xd7\xf7\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\xbf\u2000-\u206f \t\x0b\f\xa0\ufeff\n\r\u2028\u2029\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000]|[A-Z\xc0-\xd6\xd8-\xde](?:[a-z\xdf-\xf6\xf8-\xff]|[^\ud800-\udfff\xac\xb1\xd7\xf7\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\xbf\u2000-\u206f \t\x0b\f\xa0\ufeff\n\r\u2028\u2029\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\d+\u2700-\u27bfa-z\xdf-\xf6\xf8-\xffA-Z\xc0-\xd6\xd8-\xde])|$)|[A-Z\xc0-\xd6\xd8-\xde]?(?:[a-z\xdf-\xf6\xf8-\xff]|[^\ud800-\udfff\xac\xb1\xd7\xf7\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\xbf\u2000-\u206f \t\x0b\f\xa0\ufeff\n\r\u2028\u2029\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\d+\u2700-\u27bfa-z\xdf-\xf6\xf8-\xffA-Z\xc0-\xd6\xd8-\xde])+(?:['’](?:d|ll|m|re|s|t|ve))?|[A-Z\xc0-\xd6\xd8-\xde]+(?:['’](?:D|LL|M|RE|S|T|VE))?|\d*(?:(?:1ST|2ND|3RD|(?![123])\dTH)\b)|\d*(?:(?:1st|2nd|3rd|(?![123])\dth)\b)|\d+|(?:[\u2700-\u27bf]|(?:\ud83c[\udde6-\uddff]){2}|[\ud800-\udbff][\udc00-\udfff])[\ufe0e\ufe0f]?(?:[\u0300-\u036f\ufe20-\ufe2f\u20d0-\u20ff]|\ud83c[\udffb-\udfff])?(?:\u200d(?:[^\ud800-\udfff]|(?:\ud83c[\udde6-\uddff]){2}|[\ud800-\udbff][\udc00-\udfff])[\ufe0e\ufe0f]?(?:[\u0300-\u036f\ufe20-\ufe2f\u20d0-\u20ff]|\ud83c[\udffb-\udfff])?)*/g;
+const namespacer = '/';
+
+function camelCase(string) {
+  return string.match(wordPattern).reduce((camelCased, word, index) =>
+    camelCased + (index === 0
+      ? word.toLowerCase()
+      : word.charAt(0).toUpperCase() + word.substring(1).toLowerCase())
+  , '');
+}
+
+export default actionType => actionType.split(namespacer).map(camelCase).join(namespacer);
diff --git a/src/createActions.js b/src/createActions.js
index 509fb00d..7557cbc0 100644
--- a/src/createActions.js
+++ b/src/createActions.js
@@ -1,8 +1,7 @@
 import identity from 'lodash/identity';
-import camelCase from 'lodash/camelCase';
+import camelCase from './camelCase';
 import isPlainObject from 'lodash/isPlainObject';
 import isArray from 'lodash/isArray';
-import reduce from 'lodash/reduce';
 import isString from 'lodash/isString';
 import isFunction from 'lodash/isFunction';
 import createAction from './createAction';
@@ -32,7 +31,8 @@ function isValidActionsMapValue(actionsMapValue) {
 }
 
 function fromActionsMap(actionsMap) {
-  return reduce(actionsMap, (actionCreatorsMap, actionsMapValue, type) => {
+  return Object.keys(actionsMap).reduce((actionCreatorsMap, type) => {
+    const actionsMapValue = actionsMap[type];
     invariant(
       isValidActionsMapValue(actionsMapValue),
       'Expected function, undefined, or array with payload and meta ' +
@@ -41,7 +41,6 @@ function fromActionsMap(actionsMap) {
     const actionCreator = isArray(actionsMapValue)
       ? createAction(type, ...actionsMapValue)
       : createAction(type, actionsMapValue);
-
     return { ...actionCreatorsMap, [camelCase(type)]: actionCreator };
   }, {});
 }