This version does not have any of the restrictions applied to the Free version.PRO vs FREE version:If you choose to buy Pro version, you'll get:- Mission videos.- Play with soviets (instead of USA only).- Purchase all hardware (without restrictions).- Build all launch pads (instead of just two).- Change default settings.- Updates and enhancements.- You can write to me and ask for particular updates.There're still a few restrictions compared to the original DOS game. Mainly due to optimizations:- You cannot UNDO purchases.- Just one savegame (but you get autosave feature).- You cannot edit astronaut / cosmonaut stats.- You cannot replay mission videos (will probably be available later).I do my best to support all devices. Please, if you want to make sure the game runs fine on your device, download the FREE version.

// Option A //

To download DaBIT mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download DaBIT mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download DaBIT from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search DaBIT in HappyMod App.