diff --git a/app/Http/Controllers/AdminController.php b/app/Http/Controllers/AdminController.php
index 11432f50..98b7fcca 100644
--- a/app/Http/Controllers/AdminController.php
+++ b/app/Http/Controllers/AdminController.php
@@ -508,11 +508,17 @@ class AdminController extends Controller
 
             return json(trans('admin.players.delete.success'), 0);
         } elseif ($action == 'name') {
-            $this->validate($request, [
+            $name = $this->validate($request, [
                 'name' => 'required|player_name|min:'.option('player_name_length_min').'|max:'.option('player_name_length_max'),
-            ]);
+            ])['name'];
 
-            $player->rename($request->input('name'));
+            $player->rename($name);
+
+            if (option('single_player', false)) {
+                $owner = $player->user;
+                $owner->nickname = $name;
+                $owner->save();
+            }
 
             return json(trans('admin.players.name.success', ['player' => $player->name]), 0, ['name' => $player->name]);
         } else {
diff --git a/app/Http/Controllers/PlayerController.php b/app/Http/Controllers/PlayerController.php
index 9e0bd252..ef2446af 100644
--- a/app/Http/Controllers/PlayerController.php
+++ b/app/Http/Controllers/PlayerController.php
@@ -65,6 +65,10 @@ class PlayerController extends Controller
     {
         $user = Auth::user();
 
+        if (option('single_player', false)) {
+            return json(trans('user.player.add.single'), 1);
+        }
+
         $this->validate($request, [
             'player_name' => 'required|player_name|min:'.option('player_name_length_min').'|max:'.option('player_name_length_max'),
         ]);
@@ -99,6 +103,10 @@ class PlayerController extends Controller
     {
         $playerName = $this->player->name;
 
+        if (option('single_player', false)) {
+            return json(trans('user.player.delete.single'), 1);
+        }
+
         event(new PlayerWillBeDeleted($this->player));
 
         $this->player->delete();
@@ -133,6 +141,12 @@ class PlayerController extends Controller
 
         $this->player->rename($newName);
 
+        if (option('single_player', false)) {
+            $user = auth()->user();
+            $user->nickname = $newName;
+            $user->save();
+        }
+
         return json(trans('user.player.rename.success', ['old' => $oldName, 'new' => $newName]), 0);
     }
 
@@ -169,4 +183,34 @@ class PlayerController extends Controller
 
         return json(trans('user.player.clear.success', ['name' => $this->player->name]), 0);
     }
+
+    public function bind(Request $request)
+    {
+        $name = $this->validate($request, [
+            'player' => 'required|player_name|min:'.option('player_name_length_min').'|max:'.option('player_name_length_max'),
+        ])['player'];
+        $user = Auth::user();
+
+        event(new CheckPlayerExists($name));
+        $player = Player::where('name', $name)->first();
+        if (! $player) {
+            event(new PlayerWillBeAdded($name));
+
+            $player = new Player;
+            $player->uid = $user->uid;
+            $player->name = $name;
+            $player->tid_skin = 0;
+            $player->save();
+
+            event(new PlayerWasAdded($player));
+        } elseif ($player->uid != $user->uid) {
+            return json(trans('user.player.rename.repeated'), 1);
+        }
+
+        $user->players()->where('name', '<>', $name)->delete();
+        $user->nickname = $name;
+        $user->save();
+
+        return json(trans('user.player.bind.success'), 0);
+    }
 }
diff --git a/app/Http/Controllers/UserController.php b/app/Http/Controllers/UserController.php
index 13b206a5..036d51b6 100644
--- a/app/Http/Controllers/UserController.php
+++ b/app/Http/Controllers/UserController.php
@@ -175,6 +175,10 @@ class UserController extends Controller
 
         switch ($action) {
             case 'nickname':
+                if (option('single_player', false)) {
+                    return json(trans('user.profile.nickname.single'), 1);
+                }
+
                 $this->validate($request, [
                     'new_nickname' => 'required|no_special_chars|max:255',
                 ]);
diff --git a/app/Http/Middleware/RequireBindPlayer.php b/app/Http/Middleware/RequireBindPlayer.php
new file mode 100644
index 00000000..9165ea45
--- /dev/null
+++ b/app/Http/Middleware/RequireBindPlayer.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+
+class RequireBindPlayer
+{
+    public function handle($request, Closure $next)
+    {
+        if (! option('single_player', false)) {
+            if ($request->is('user/player/bind')) {
+                return redirect('/user');
+            } else {
+                return $next($request);
+            }
+        }
+
+        // This allows us to fetch players list.
+        if ($request->is('user/player/list')) {
+            return $next($request);
+        }
+
+        $count = auth()->user()->players()->count();
+
+        if ($request->is('user/player/bind')) {
+            if ($count == 1) {
+                return redirect('/user');
+            } else {
+                return $next($request);
+            }
+        }
+
+        if ($count == 1) {
+            return $next($request);
+        } else {
+            return redirect('user/player/bind');
+        }
+    }
+}
diff --git a/app/Models/User.php b/app/Models/User.php
index 159971b4..bf9a2fca 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -60,6 +60,27 @@ class User extends Authenticatable
         return $this->belongsToMany(Texture::class, 'user_closet')->withPivot('item_name');
     }
 
+    /**
+     * Retrieve the player name of first player.
+     */
+    public function getPlayerNameAttribute()
+    {
+        $player = $this->players->first();
+        return $player ? $player->name : '';
+    }
+
+    /**
+     * Update the player name of first player.
+     */
+    public function setPlayerNameAttribute($value)
+    {
+        $player = $this->players->first();
+        if ($player) {
+            $player->name = $value;
+            $player->save();
+        }
+    }
+
     /**
      * Check if given password is correct.
      *
diff --git a/resources/assets/src/route.ts b/resources/assets/src/route.ts
index a69f2bae..eae987b6 100644
--- a/resources/assets/src/route.ts
+++ b/resources/assets/src/route.ts
@@ -18,6 +18,11 @@ export default [
     component: () => import('./views/user/Players.vue'),
     el: '.content',
   },
+  {
+    path: 'user/player/bind',
+    component: () => import('./views/user/Bind.vue'),
+    el: 'form',
+  },
   {
     path: 'user/profile',
     component: () => import('./views/user/Profile.vue'),
diff --git a/resources/assets/src/views/user/Bind.vue b/resources/assets/src/views/user/Bind.vue
new file mode 100644
index 00000000..48ead20a
--- /dev/null
+++ b/resources/assets/src/views/user/Bind.vue
@@ -0,0 +1,84 @@
+<template>
+  <form>
+    <div v-if="players.length">
+      <p v-t="'user.bindExistedPlayer'" />
+      <div class="form-group">
+        <select v-model="selected" class="player-select">
+          <option v-for="name in players" :key="name">{{ name }}</option>
+        </select>
+      </div>
+    </div>
+
+    <div v-else>
+      <p v-t="'user.bindNewPlayer'" />
+      <div class="form-group has-feedback">
+        <input
+          v-model="selected"
+          class="form-control"
+          :placeholder="$t('general.player.player-name')"
+        >
+        <span class="glyphicon glyphicon-user form-control-feedback" />
+      </div>
+    </div>
+
+    <div v-show="message" class="callout callout-warning" v-text="message" />
+
+    <button v-if="pending" class="btn btn-primary btn-block btn-flat" disabled>
+      <i class="fa fa-spinner fa-spin" /> {{ $t('general.wait') }}
+    </button>
+    <button
+      v-else
+      class="btn btn-primary btn-block btn-flat"
+      @click.prevent="submit"
+    >
+      {{ $t('general.submit') }}
+    </button>
+  </form>
+</template>
+
+<script>
+import { swal } from '../../js/notify'
+
+export default {
+  name: 'BindPlayer',
+  data() {
+    return {
+      players: [],
+      selected: '',
+      pending: false,
+      message: '',
+    }
+  },
+  mounted() {
+    this.fetchPlayers()
+  },
+  methods: {
+    async fetchPlayers() {
+      const players = await this.$http.get('/user/player/list')
+      this.players = players.map(player => player.name)
+      ;[this.selected] = this.players
+    },
+    async submit() {
+      this.pending = true
+      const { errno, msg } = await this.$http.post(
+        '/user/player/bind',
+        { player: this.selected }
+      )
+      this.pending = false
+      if (errno === 0) {
+        await swal({ text: msg, type: 'success' })
+        window.location.href = `${blessing.base_url}/user`
+      } else {
+        this.message = msg
+      }
+    },
+  },
+}
+</script>
+
+<style lang="stylus">
+@import "../../stylus/auth.styl"
+
+.player-select
+  width 100%
+</style>
diff --git a/resources/assets/tests/views/user/Bind.test.ts b/resources/assets/tests/views/user/Bind.test.ts
new file mode 100644
index 00000000..3575b7e7
--- /dev/null
+++ b/resources/assets/tests/views/user/Bind.test.ts
@@ -0,0 +1,42 @@
+import Vue from 'vue'
+import { mount } from '@vue/test-utils'
+import Bind from '@/views/user/Bind.vue'
+import { swal } from '@/js/notify'
+
+jest.mock('@/js/notify')
+
+test('list existed players', async () => {
+  Vue.prototype.$http.get
+    .mockResolvedValue([{ name: 'a' }, { name: 'b' }])
+  const wrapper = mount(Bind)
+  await wrapper.vm.$nextTick()
+  const options = wrapper.findAll('option')
+  expect(options).toHaveLength(2)
+})
+
+test('show input box', async () => {
+  Vue.prototype.$http.get.mockResolvedValue([])
+  const wrapper = mount(Bind)
+  await wrapper.vm.$nextTick()
+  const input = wrapper.find('input')
+  expect(input.exists()).toBeTrue()
+})
+
+test('submit', async () => {
+  Vue.prototype.$http.get.mockResolvedValue([])
+  Vue.prototype.$http.post
+    .mockResolvedValueOnce({ errno: 1, msg: 'fail' })
+    .mockResolvedValueOnce({ errno: 0, msg: 'ok' })
+  swal.mockResolvedValue({})
+
+  const wrapper = mount(Bind)
+  wrapper.find('input').setValue('abc')
+
+  wrapper.find('button').trigger('click')
+  await wrapper.vm.$nextTick()
+  expect(wrapper.find('.callout').text()).toBe('fail')
+
+  wrapper.find('button').trigger('click')
+  await wrapper.vm.$nextTick()
+  expect(swal).toBeCalledWith({ text: 'ok', type: 'success' })
+})
diff --git a/resources/lang/en/front-end.yml b/resources/lang/en/front-end.yml
index 320bbea9..37c07ad4 100644
--- a/resources/lang/en/front-end.yml
+++ b/resources/lang/en/front-end.yml
@@ -139,6 +139,8 @@ user:
   typeToSearch: Type to search
   useAs: Apply...
   resetSelected: Clear selected
+  bindNewPlayer: You're required to create a player to go ahead. This player will be bound with your account.
+  bindExistedPlayer: You're required to select a player to go ahead. This player will be bound with your account. Other players will be deleted.
   closet:
     use-as:
       button: Apply...
@@ -328,6 +330,7 @@ general:
   reset: Reset
   skinlib: Skin Library
   loading: Loading
+  wait: Please wait...
   user:
     email: Email
     nickname: Nick Name
diff --git a/resources/lang/en/user.yml b/resources/lang/en/user.yml
index f01b063f..c09dcb66 100644
--- a/resources/lang/en/user.yml
+++ b/resources/lang/en/user.yml
@@ -93,9 +93,11 @@ player:
   add:
     repeated: The player name is already registered.
     lack-score: You don't have enough score to add a player.
+    single: You must own exactly ONE player so you can't add more.
     success: Player :name was added successfully.
 
   delete:
+    single: You must own exactly ONE player so you can't delete it.
     success: Player :name was deleted successfully.
 
   rename:
@@ -108,6 +110,10 @@ player:
   clear:
     success: The textures of player :name was resetted successfully.
 
+  bind:
+    title: Bind Players
+    success: Bound successfully!
+
 profile:
   avatar:
     title: Change Avatar?
@@ -128,6 +134,7 @@ profile:
     title: Change Nickname
     empty: No nickname is set now.
     rule: Whatever you like expect special characters
+    single: You're not allowed to update nickname, because we've bound your player with your account.
     success: Nickname is successfully updated to :nickname
 
   email:
diff --git a/resources/lang/zh_CN/front-end.yml b/resources/lang/zh_CN/front-end.yml
index b0d98fdc..a38d6d9d 100644
--- a/resources/lang/zh_CN/front-end.yml
+++ b/resources/lang/zh_CN/front-end.yml
@@ -139,6 +139,8 @@ user:
   typeToSearch: 输入即搜索
   useAs: 使用...
   resetSelected: 重置已选材质
+  bindNewPlayer: 您现在需要创建一个角色，才能继续使用我们的服务。这个角色将与您的账号绑定。
+  bindExistedPlayer: 您现在需要选择一个角色，才能继续使用我们的服务。这个角色将与您的账号绑定。其它角色将被删除。
   closet:
     use-as:
       button: 使用...
@@ -322,6 +324,7 @@ general:
   reset: 重置
   skinlib: 皮肤库
   loading: 正在加载
+  wait: 请稍等...
   user:
     email: 邮箱
     nickname: 昵称
diff --git a/resources/lang/zh_CN/user.yml b/resources/lang/zh_CN/user.yml
index 71b7e373..1195cf78 100644
--- a/resources/lang/zh_CN/user.yml
+++ b/resources/lang/zh_CN/user.yml
@@ -102,9 +102,11 @@ player:
   add:
     repeated: 该角色名已被占用
     lack-score: 添加角色失败，积分不足
+    single: 您必须拥有且只有一个角色，因此您不能添加更多角色。
     success: 成功添加了角色 :name
 
   delete:
+    single: 您必须拥有且只有一个角色，因此您不能删除。
     success: 角色 :name 已被删除
 
   rename:
@@ -117,6 +119,10 @@ player:
   clear:
     success: 角色 :name 的材质已被成功重置
 
+  bind:
+    title: 绑定角色
+    success: 绑定成功
+
 profile:
   avatar:
     title: 更改头像？
@@ -137,6 +143,7 @@ profile:
     title: 更改昵称
     empty: 当前未设置昵称，
     rule: 可使用除一些特殊符号外的任意字符
+    single: 您不能更改昵称，因为我们已将角色与您的账号进行了绑定。
     success: 昵称已成功设置为 :nickname
 
   email:
diff --git a/resources/views/auth/bind.blade.php b/resources/views/auth/bind.blade.php
index 95d8bc92..65cbb789 100644
--- a/resources/views/auth/bind.blade.php
+++ b/resources/views/auth/bind.blade.php
@@ -12,7 +12,7 @@
     <div class="login-box-body">
         <p class="login-box-msg">@lang('auth.bind.message')</p>
 
-        <form  method="post" id="login-form">
+        <form method="post" id="login-form">
             @csrf
             <div class="form-group has-feedback">
                 <input name="email" type="email" class="form-control" placeholder="@lang('auth.email')">
diff --git a/resources/views/user/bind.blade.php b/resources/views/user/bind.blade.php
new file mode 100644
index 00000000..b8211bff
--- /dev/null
+++ b/resources/views/user/bind.blade.php
@@ -0,0 +1,16 @@
+@extends('auth.master')
+
+@section('title', trans('user.player.bind.title'))
+
+@section('content')
+<div class="login-box">
+    <div class="login-logo">
+        <a href="{{ url('/') }}">{{ option_localized('site_name') }}</a>
+    </div>
+    <!-- /.login-logo -->
+    <div class="login-box-body">
+        <p class="login-box-msg">@lang('user.player.bind.title')</p>
+        <form></form>
+    </div>
+</div>
+@endsection
diff --git a/routes/web.php b/routes/web.php
index d0f6a14b..809344da 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -41,7 +41,10 @@ Route::group(['prefix' => 'auth'], function () {
 /*
  * User Center
  */
-Route::group(['middleware' => ['web', 'auth'], 'prefix' => 'user'], function () {
+Route::group([
+    'middleware' => ['web', 'auth', \App\Http\Middleware\RequireBindPlayer::class],
+    'prefix' => 'user'
+], function () {
     Route::any('', 'UserController@index');
     Route::get('/score-info', 'UserController@scoreInfo');
     Route::post('/sign', 'UserController@sign');
@@ -64,6 +67,8 @@ Route::group(['middleware' => ['web', 'auth'], 'prefix' => 'user'], function ()
         Route::post('/texture/clear', 'PlayerController@clearTexture');
         Route::post('/rename', 'PlayerController@rename');
         Route::post('/delete', 'PlayerController@delete');
+        Route::view('/bind', 'user.bind');
+        Route::post('/bind', 'PlayerController@bind');
     });
 
     // Closet
diff --git a/tests/AdminControllerTest.php b/tests/AdminControllerTest.php
index 716ed743..0901cfaa 100644
--- a/tests/AdminControllerTest.php
+++ b/tests/AdminControllerTest.php
@@ -711,6 +711,16 @@ class AdminControllerTest extends BrowserKitTestCase
             'name' => 'new_name',
         ]);
 
+        // Single player
+        option(['single_player' => true]);
+        $this->postJson('/admin/players', [
+            'pid' => $player->pid,
+            'action' => 'name',
+            'name' => 'abc',
+        ])->seeJson(['errno' => 0]);
+        $player->refresh();
+        $this->assertEquals('abc', $player->user->nickname);
+
         // Delete a player
         $this->postJson('/admin/players', [
             'pid' => $player->pid,
diff --git a/tests/AuthControllerTest.php b/tests/AuthControllerTest.php
index b06b46e2..8cc17cb4 100644
--- a/tests/AuthControllerTest.php
+++ b/tests/AuthControllerTest.php
@@ -295,6 +295,7 @@ class AuthControllerTest extends TestCase
             'errno' => 2,
             'msg' => trans('user.player.add.repeated'),
         ]);
+        $this->assertNull(User::where('email', 'a@b.c')->first());
 
         option(['register_with_player_name' => false]);
 
diff --git a/tests/MiddlewareTest.php b/tests/MiddlewareTest.php
index 8717a284..471eacdb 100644
--- a/tests/MiddlewareTest.php
+++ b/tests/MiddlewareTest.php
@@ -4,6 +4,7 @@ namespace Tests;
 
 use DB;
 use App\Models\User;
+use App\Models\Player;
 use App\Services\Facades\Option;
 use Illuminate\Support\Facades\Schema;
 use Illuminate\Foundation\Testing\DatabaseTransactions;
@@ -196,4 +197,22 @@ class MiddlewareTest extends TestCase
             ->get('/auth/login')
             ->assertRedirect('/user');
     }
+
+    public function testRequireBindPlayer()
+    {
+        $user = factory(User::class)->create();
+        $this->actAs($user)->get('/user')->assertViewIs('user.index');
+        $this->get('/user/player/bind')->assertRedirect('/user');
+
+        option(['single_player' => true]);
+
+        $this->getJson('/user/player/list')->assertHeader('content-type', 'application/json');
+
+        $this->get('/user/player/bind')->assertViewIs('user.bind');
+        $this->get('/user')->assertRedirect('/user/player/bind');
+
+        factory(Player::class)->create(['uid' => $user->uid]);
+        $this->get('/user')->assertViewIs('user.index');
+        $this->get('/user/player/bind')->assertRedirect('/user');
+    }
 }
diff --git a/tests/ModelsTest/UserTest.php b/tests/ModelsTest/UserTest.php
index 8eef0e86..9dbc6b5a 100644
--- a/tests/ModelsTest/UserTest.php
+++ b/tests/ModelsTest/UserTest.php
@@ -3,6 +3,7 @@
 namespace Tests;
 
 use App\Models\User;
+use App\Models\Player;
 use Illuminate\Foundation\Testing\DatabaseTransactions;
 
 class UserTest extends TestCase
@@ -26,4 +27,20 @@ class UserTest extends TestCase
             $user->getNickName()
         );
     }
+
+    public function testGetPlayerNameAttribute()
+    {
+        $user = factory(User::class)->create();
+        $player = factory(Player::class)->create(['uid' => $user->uid]);
+        $this->assertEquals($player->name, $user->player_name);
+    }
+
+    public function testSetPlayerNameAttribute()
+    {
+        $user = factory(User::class)->create();
+        $player = factory(Player::class)->create(['uid' => $user->uid]);
+        $user->player_name = 'a';
+        $player->refresh();
+        $this->assertEquals('a', $player->name);
+    }
 }
diff --git a/tests/PlayerControllerTest.php b/tests/PlayerControllerTest.php
index df6b2d91..27dbd3e2 100644
--- a/tests/PlayerControllerTest.php
+++ b/tests/PlayerControllerTest.php
@@ -2,6 +2,7 @@
 
 namespace Tests;
 
+use Event;
 use App\Events;
 use App\Models\User;
 use App\Models\Player;
@@ -108,6 +109,14 @@ class PlayerControllerTest extends TestCase
                 'errno' => 6,
                 'msg' => trans('user.player.add.repeated'),
             ]);
+
+        // Single player
+        option(['single_player' => true]);
+        $this->postJson('/user/player/add', ['player_name' => 'abc'])
+            ->assertJson([
+                'errno' => 1,
+                'msg' => trans('user.player.add.single'),
+            ]);
     }
 
     public function testDelete()
@@ -143,6 +152,17 @@ class PlayerControllerTest extends TestCase
             $user->score,
             User::find($user->uid)->score
         );
+
+        // Single player
+        option(['single_player' => true]);
+        $player = factory(Player::class)->create(['uid' => $user->uid]);
+        $this->actingAs($user)
+            ->postJson('/user/player/delete', ['pid' => $player->pid])
+            ->assertJson([
+                'errno' => 1,
+                'msg' => trans('user.player.delete.single'),
+            ]);
+        $this->assertNotNull(Player::find($player->pid));
     }
 
     public function testShow()
@@ -210,6 +230,14 @@ class PlayerControllerTest extends TestCase
                 ['old' => $player->name, 'new' => 'new_name']
             ),
         ]);
+
+        // Single player
+        option(['single_player' => true]);
+        $this->postJson('/user/player/rename', [
+            'pid' => $player->pid,
+            'new_player_name' => 'abc',
+        ])->assertJson(['errno' => 0]);
+        $this->assertEquals('abc', $player->user->nickname);
     }
 
     public function testSetTexture()
@@ -284,4 +312,44 @@ class PlayerControllerTest extends TestCase
         $this->assertEquals(0, Player::find($player->pid)->tid_skin);
         $this->assertEquals(0, Player::find($player->pid)->tid_cape);
     }
+
+    public function testBind()
+    {
+        Event::fake();
+        option(['single_player' => true]);
+        $user = factory(User::class)->create();
+
+        $this->actAs($user)->postJson('/user/player/bind')
+            ->assertJson([
+                'errno' => 1,
+                'msg' => trans('validation.required', ['attribute' => 'player']),
+            ]);
+
+        $this->postJson('/user/player/bind', ['player' => 'abc'])
+            ->assertJson([
+                'errno' => 0,
+                'msg' => trans('user.player.bind.success')
+            ]);
+        Event::assertDispatched(Events\CheckPlayerExists::class);
+        Event::assertDispatched(Events\PlayerWillBeAdded::class);
+        Event::assertDispatched(Events\PlayerWasAdded::class);
+        $player = Player::where('name', 'abc')->first();
+        $this->assertNotNull($player);
+        $this->assertEquals($user->uid, $player->uid);
+        $this->assertEquals('abc', $player->name);
+        $user->refresh();
+        $this->assertEquals('abc', $user->nickname);
+
+        $player2 = factory(Player::class)->create();
+        $player3 = factory(Player::class)->create(['uid' => $user->uid]);
+        $this->postJson('/user/player/bind', ['player' => $player2->name])
+            ->assertJson([
+                'errno' => 1,
+                'msg' => trans('user.player.rename.repeated')
+            ]);
+
+        $this->postJson('/user/player/bind', ['player' => $player->name])
+            ->assertJson(['errno' => 0]);
+        $this->assertNull(Player::where('name', $player3->name)->first());
+    }
 }
diff --git a/tests/UserControllerTest.php b/tests/UserControllerTest.php
index 6cf88067..acaae78b 100644
--- a/tests/UserControllerTest.php
+++ b/tests/UserControllerTest.php
@@ -243,6 +243,13 @@ class UserControllerTest extends TestCase
             'msg' => trans('validation.max.string', ['attribute' => 'new nickname', 'max' => 255]),
         ]);
 
+        // Single player
+        option(['single_player' => true]);
+        factory(\App\Models\Player::class)->create(['uid' => $user->uid]);
+        $this->postJson('/user/profile', ['action' => 'nickname'])
+            ->assertJson(['errno' => 1, 'msg' => trans('user.profile.nickname.single')]);
+        option(['single_player' => false]);
+
         // Change nickname successfully
         $this->expectsEvents(Events\UserProfileUpdated::class);
         $this->postJson('/user/profile', [