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Arcanox is a blend of collectible cards, tower defense game and combat strategy MMO for Android, iOS and PC.

Collect and upgrade over 300 minion and spell cards. Develop your ultimate unique deck and strategy. Attack castles of players from all over the world and steal their gold. Build, upgrade and expand your mighty castle. Defend your castle with dragons, cannons and barricades, as well as devious traps. Master cunning strategies that are unlocked with every new minion, spell, enchantment, trap and defender. Crush multiplayer and singleplayer opponents and become a legend in Arcanox: Cards vs. Castles.

★ Enjoy unlimited thrilling PvP and singleplayer battles for FREE
★ Construct a unique deck with over 300 minion and spell cards
★ Build an unconquerable fortress
★ Join together with other players to form the ultimate guild
★ Borrow powerful cards from other players to make your deck even stronger
★ Improve your defense with game-changing enchantments
★ Surprise attackers with devious traps
★ Optimized for smartphones and tablets
★ Easy to learn but difficult to master

The game is available in English, Spanish, French, German and Russian for Android on Google Play. In summer 2015 it will be released on the iOS App Store. A release for Windows, Mac and Linux is also planned.

Juhu Games is a one-man independent game studio run by Christian Teister in Hamburg, Germany. He strives to develop the best free thrilling strategy games Christian has worked on several PC, browser, mobile and console games, including Velvet Assassin, Empire: Four Kingdoms, Grappling Hook and Kartuga, over the past 12 years. The birth of his son gave him the decisive impulse to quit his job as lead gameplay programmer, and develop his own games.

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NEW: Guilds

Arcanox Guilds

  • Create and manage your own guild or join a guild.
  • Invite your friends to join your guild and support each other.
  • Design a unique badge for your guild. 5145 different badges are possible.
  • Beat daily challenges to increase the maximum number of members. Guilds can have up to 50 members.
  • Discuss strategies, cards, castle layouts and the challenges in the private guild chat.
  • Compare your guild with all others in the global guild ladder.

NEW: Borrow Cards From Other Players

Borrowed Cards

Being in an active guild has the great advantage that you can borrow up to 4 cards from other guild members. To do this you need to build a guild library first.

Every borrowed card can be used once during an attack. After it has been used or at the latest after 3 hours, it is returned automatically to its owner. Borrowed cards are highlighted with the badge of your guild in the upper right corner.

NEW: 3 Card Packs

Card Packs

Instead of being able to buy only one card pack, you can choose between 3 card packs to buy now.

New Card Packs

NEW: Public Player Profiles

Public Player Profile

  • See statistics of all other players (e.g. how many multiplayer attacks they have won or against which computer opponents they have beaten).
  • See the deck of your guild members and which cards they have lent recently.

NEW: Russian Translation

Russian translation

Besides English, Spanish, German and French, the game is also available in Russian now.

CHANGED: Adjusted Gold Loot Factors

Players receive less or more gold for attacks based on the level of their castle heart and their targets castle heart. The reasons for this rule are:

  1. It should be less attractive for strong players to annihilate new players.
  2. Losing on purpose to trick the matchmaking shouldn’t be a strong strategy.
  3. Winning against equal or even stronger opponents should be rewarding.

The percentages have been adjusted a bit, because they were too extreme in some cases.

Gold Loot Factor Changes


  • Castle heart upgrades require a certain AI opponent level. This change was required, because several players ignored improving their deck and spent all their gold on upgrading their castle. This way they reached almost a dead end, where a lot of grinding was required to earn gold for the castle upgrades. With this change players are reminded to upgrade their cards along with their castle.
  • Defenders with the ice enchantment can be frozen by minions and freeze spells now. Minions with the ice enchantment are still immune against freeze. This change was required, because cannons with an ice enchantment were a bit too strong.
  • When players reach the hard cap of 100 PvP battles per 24 hours they can still attack now, but will receive no rewards for attacking. Also a warning is displayed, when they reach the cap.
  • Reduced the upgrade costs of several rooms.
  • Redesigned attack dialog, because of the new guild challenges and borrowed cards.
  • Remade the friend’s ladder from scratch to fix several errors.
  • Some small adjustments to the tutorial.


  • Connecting the game account with Google+ didn’t work on devices with Android 5.0 or higher.
  • Fixed several errors in the Spanish Translation.
  • Descriptions of the castle heart and card shop were outdated and incorrect.
  • Buttons in the player context menu were triggered on touch-down and not on touch-up like all other buttons.
  • Some fixes to improve client stability.
  • Sometimes players were not logged out on the game server properly, when they disconnected.

Special thanks to Olliver Heins, Sirko Rückmann, Nicko Böhnke, Torsten Krauß, Gerru Kloppers, IamRedGod, Cicklow and all beta-testers. Your feedback and advice was invaluable for this update!

How do you like the new features and changes? Feedback is always appreciated!

Have fun!

Download the new Arcanox version for FREE on Google Play!
Arcanox: Cards vs. Castles on Google Play
Arcanox Update: Global Chat & Improved Connection

Arcanox Update: Global Chat & Improved Connection


A new version of Arcanox: Cards vs. Castles is available on Google Play featuring a global chat, improved connection to the server and other changes.

ARCANOX: CARDS VS. CASTLES released worldwide on Android

ARCANOX: CARDS VS. CASTLES released worldwide on Android


Juhu Games has released its mobile game Arcanox: Cards vs. Castles on Android today. Arcanox is a blend of collectible cards, tower defense game and combat...

Arcanox: Cards vs. Castles Game Trailer revealed

Arcanox: Cards vs. Castles Game Trailer revealed


Watch the game trailer of the upcoming mobile strategy MMO Arcanox: Cards vs. Castles! Arcanox is a blend of collectible card and combat strategy game...

Arcanox Beta Version 50

Arcanox Beta Version 50


Arcanox beta version 50 is available. The update includes several bug fixes and small improvements. Download the Arcanox beta client for Android, Windows...


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Latest tweets from @arcanoxgame

The Arcanox server is back online. I was able to repair the database, so this is NOT an old backup. The repair was… T.co

Oct 12 2019

I was able to repair the damaged Arcanox database. On the first glance everything looks fine. I still need some mor… T.co

Oct 11 2019

Please read my proposal for the future of Arcanox and let me know your thoughts: Juhugames.com Thanks & Sorry

Oct 10 2019

Unfortunately all attempts to repair the damaged database files failed. The database Arcanox uses (MongoDB) has a b… T.co

Oct 9 2019

During the server maintenance this morning database files were damaged. I’m trying to repair these files, but I don… T.co

Oct 9 2019

The Arcanox server is offline since around 16 hours, because the data center did some changes during a scheduled ma… T.co

Oct 9 2019

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