Block Builder FX is a physics-based block building game with two modes: Creative and Build Challenges.

Creative Mode: Use your inventory of blocks (and your imagination!) to build anything you want! Then, the real fun begins when you apply physics effects to your build to see how it holds up! Various effects can produce stunning, even beautiful displays of patterns and movement!

Build Challenges Mode: Earn new blocks and other special items by completing build challenges. Build challenges also help you improve your building skills.

Creative Mode Highlights:
- Push the limits of physics with tall towers or wide builds with hundreds of blocks
- Build roller ball courses
- Save your builds
- Share your builds with other Block Builder FX players (export and import builds via the clipboard)
- Lock objects to prevent movement while building
- Enable slow motion with the tap of a button (great for watching falling towers & explosions)
- Apply these stunning physics effects: Random Disappearance, Jolt, Weightlessness, Don't Touch the Ground, Explosion, Go Home, Expand, Cluster, Vortex, Come to Me, Spinners, Throw Ball, Throw Destruction Ball, Throw Explosion Ball, Reverse Gravity, Gravity Push, Gravity Pull
- Add Starter Builds with the touch of a button. Starter Builds can give you inspiration for your own build ideas and demo how some special blocks work
- Use Action Blocks to build ball courses. Action Blocks react in special ways when a ball touches them. Actions blocks include: Explosion Block, Spring Block, Destroyer Block, Power Block, Lock Block, Ball Drop Trigger Block, Wood Ball Dropper Block, Metal Ball Dropper Block, Glass Ball Dropper Block, Teleport Source Block, Teleport Target Block, Accelerator Block, Switch Block, and Switch Trigger Block

Block Builder FX is playable at no cost. A one-time Premium Upgrade can be purchased to enable all locked physics effects and creative maps. Or, a one-time Premium Ultimate Upgrade purchase also adds permanent unlimited inventory.

What’s New

Version 1.9

New Combos feature allows you to build with complex items of any size or shape! Simply build something new, then tap "Create Combo" on the main menu. The new combo item will now be available to add as many times as you want from the inventory menu under "Combos"!

Ratings and Reviews

4.3 out of 5
17 Ratings

17 Ratings

ar0128 ,

Wholesome Family Fun

Our family was quickly hooked on this game. It is challenging, exercises our memory, and is appropriate for all ages - no worries about what questionable characters, situations, or scenes.

sanderella2010 (sandra kay) ,

I’m Hooked!

Block Builder FX is pretty awesome, especially if you love puzzles, have a great memory and enjoy a good challenge! Would highly recommend!

TheReapster ,


I buy the premium and when I go to a map like space the game crashes please fix this game bug. Sure the model is a1574 and the version is 11.4.1 (15g77) 128 gigs iPod touch 6

Developer Response ,

Hi, I’m sorry to hear the game is crashing for you. Can you provide your device model and version? We’ll test it and get the crash issue fixed ASAP.


Carlton Forrester
220.2 MB

Requires iOS 9.0 or later. Compatible with iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPad Air, iPad Air Wi-Fi + Cellular, iPad mini 2, iPad mini 2 Wi-Fi + Cellular, iPad Air 2, iPad Air 2 Wi-Fi + Cellular, iPad mini 3, iPad mini 3 Wi-Fi + Cellular, iPad mini 4, iPad mini 4 Wi-Fi + Cellular, 12.9-inch iPad Pro, 12.9-inch iPad Pro Wi-Fi + Cellular, iPad Pro (9.7‑inch), iPad Pro (9.7-inch) Wi‑Fi + Cellular, iPad (5th generation), iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation), iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5‑inch), iPad Pro (10.5-inch) Wi‑Fi + Cellular, iPad (6th generation), iPad Wi-Fi + Cellular (6th generation), iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro (12.9-inch), iPad Pro (12.9-inch) Wi‑Fi + Cellular, iPad mini (5th generation), iPad mini (5th generation) Wi-Fi + Cellular, iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular, iPod touch (6th generation), and iPod touch (7th generation).



Age Rating
Rated 4+
© 2018 Carlton Forrester
In-App Purchases
  1. Premium Upgrade - ULTIMATE! $3.99
  2. Wooden Block Pack $0.99
  3. Special Items Pack $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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