Minecraft's mobile iteration has been offering blocky building on Android and iOS for awhile now, and thanks to the BlackBerry 10.2.1 update, you can now get in on it with BlackBerry as well. The Amazon Appstore offers Minecraft for Minecraft Pocket Edition for $6.99, and it runs great on BB10. I tested on the Z30, but you should have good luck on other device as well.
Step 1: Install and log into the Amazon Appstore
Go to the Amazon Appstore download page in your BlackBerry browser (http://www.amazon.com/getappstore). Tap the "Download the Amazon Appstore" button. The Downloads window should pop up asking you where you want to save it and what the filename should be; just tap Save in the top-right, then tap the file when it's done downloading. If the download window isn't there, tap the overflow menu button in the bottom-right (three little dots), and tap Downloads.
After installation, open the Amazon Appstore, enter your Amazon e-mail and password, and tap the "Sign in with my Amazon account" button. If you don't have an Amazon account, tap the "Create account" button and follow the steps.
Step 2: Download and install Minecraft
Tap the magnifying glass in the top-right of the Amazon Appstore, and type Minecraft into the search box. It should pop up in the results below; just tap the $6.99 button to initiate the purchase. You can also buy Minecraft from the comfort of your desktop web browser. You'll have to tap another Install button after that, and confirm app permissions to complete installation.
Step 3: Open and log into Minecraft
Tap the Minecraft icon in your home screens to open it. Log in, set up a server, or start your own!
I've had good performance with no glitches to speak of, though your mileage may vary. Any big Minecraft fans out there?
Extra reading:
Minecraft Pocket Edition: Top 10 tips, tricks, and cheats!
How to download Android apps to BlackBerry with Snap
How to download Android apps to BlackBerry with 1mobile
How to download Android apps to BlackBerry with Amazon
