• Play new aliens

    Hot new

    Play these great free aliens games on Fun Castle Games, they're all great or they wouldn't be here.

    • Play Mars Commando

      Mars Commando

      0 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 5

      Build units and defend your base from the attacking aliens on mars. Play Mars Commando On...

    • Play The Arecibo Response

      The Arecibo Response

      0 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 5

      Survive as many levels as possible by buying and upgrading turrets to destroy aliens. Gett...

    • Play Medieval Robot Defense

      Medieval Robot Defense

      0 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 5

      Shoot the aliens in this fun shooting defense game but don't shoot the humans!...



    Most popular aliens Games

    Most popular aliens

    Play the most popular free on Fun Castle Games as decided by you. When you play free on Fun Castle Games if you like them click on the stars to rate them!

    • Play Medieval Robot Defense

      Medieval Robot Defense

      0 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 5

      Shoot the aliens in this fun shooting defense game but don't shoot the humans!...

    • Play Mars Commando

      Mars Commando

      0 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 5

      Build units and defend your base from the attacking aliens on mars. Play Mars Commando On...

    • Play The Arecibo Response

      The Arecibo Response

      0 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 50 votes, average: 0.00 out of 5

      Survive as many levels as possible by buying and upgrading turrets to destroy aliens. Gett...




    Featured games

    Featured games

    Hand-picked, awesome games from our archives.

    • Play Crush the Castle 2 Players Pack

      Crush the Castle 2 Players Pack

      3 votes, average: 5.00 out of 53 votes, average: 5.00 out of 53 votes, average: 5.00 out of 53 votes, average: 5.00 out of 53 votes, average: 5.00 out of 5

      Kill the royalty in this players pack of levels of Crush the Castle 2. This is where Angr...

    • Play Oh No Cowboy Vampires

      Oh No Cowboy Vampires

      2 votes, average: 5.00 out of 52 votes, average: 5.00 out of 52 votes, average: 5.00 out of 52 votes, average: 5.00 out of 52 votes, average: 5.00 out of 5

      Defend yourself again the attacking cowboy vampiers! Play Oh No Cowboy Vampire Tower Defe...

    • Play Defend the Castle

      Defend the Castle

      2 votes, average: 5.00 out of 52 votes, average: 5.00 out of 52 votes, average: 5.00 out of 52 votes, average: 5.00 out of 52 votes, average: 5.00 out of 5

      Shoot the attacking Zombies with your bow and arrow. Play Defend the Castle Online...

    • Play Castle Spa

      Castle Spa

      2 votes, average: 5.00 out of 52 votes, average: 5.00 out of 52 votes, average: 5.00 out of 52 votes, average: 5.00 out of 52 votes, average: 5.00 out of 5

      Here's a new episode of the game series about Melvin and Manuela. The beautiful Castle Hot...

    • Play Castle Fight

      Castle Fight

      1 vote, average: 5.00 out of 51 vote, average: 5.00 out of 51 vote, average: 5.00 out of 51 vote, average: 5.00 out of 51 vote, average: 5.00 out of 5

      Can you destroy the generator's ennemy before he kill you ?...

    • Play Crush the Castle Player’s Pack

      Crush the Castle Player’s Pack

      1 vote, average: 5.00 out of 51 vote, average: 5.00 out of 51 vote, average: 5.00 out of 51 vote, average: 5.00 out of 51 vote, average: 5.00 out of 5

      The best user made levels for the smash hit Crush the Castles game....

    • Play Trap Hunter TD

      Trap Hunter TD

      1 vote, average: 5.00 out of 51 vote, average: 5.00 out of 51 vote, average: 5.00 out of 51 vote, average: 5.00 out of 51 vote, average: 5.00 out of 5

      Place traps to stop the monsters getting through to your base, Play Trap Hunter Tower Def...

    • Play Angry Bots

      Angry Bots

      1 vote, average: 5.00 out of 51 vote, average: 5.00 out of 51 vote, average: 5.00 out of 51 vote, average: 5.00 out of 51 vote, average: 5.00 out of 5

      Angry Bots is..... you've guessed it, Just like Angry Birds, Destroy the Robots by friri...

    Play free aliens Games

    Play free aliens

    Play other great free aliens. You don't have to install anything, just click on the thumbs and you can play free games!

    • Play Medieval Robot Defense

      Medieval Robot Defense

      Shoot the aliens in this fun shooting defense game but don't shoot the humans!...

    • Play Mars Commando

      Mars Commando

      Build units and defend your base from the attacking aliens on mars. Play Mars Commando On...

    • Play The Arecibo Response

      The Arecibo Response

      Survive as many levels as possible by buying and upgrading turrets to destroy aliens. Gett...