Guide: Research, Progression, and Upgrades
World of Tanks Blitz features over 90 vehicles from three different nations. Each player begins with pre-war, tier 1 machines that have thin armour and weak armaments, but are really fun to play. Participation in Random Battles earns you credits and experience. The better you do during a battle, the more you earn. Experience and Credits can be used to unlock new modules for tanks you own and new tanks in the Tech Tree, starting with low-level light tanks and ending up with the powerful top-tier vehicles of the post-war era.
For more information on vehicles available in World of Tanks Blitz go to the World of Tanks Blitz Encyclopedia.
The player gets all tier I tanks with the game’s default settings. You can modify your machine by changing its modules such as its gun, turret, chassis, and engine. Once you have enough XP to research a new module it will be automatically installed on your vehicle. Research of advanced vehicles calls for a lot experience gained in combat. All research-related options are available in the Upgrades window.
The Upgrades window also enables you to sell current machines and research next-tier vehicles. As soon as you have enough XP and have all the necessary modules unlocked, you can research the next tank in the Tech Tree. If you lack experience points, you can use Free Experience.
With all the necessary research for a tank complete, it is now available for purchase with Credits. Make sure your Garage has a free slot for it. If not, you can sell one of your current tanks or buy an additional slot with in-game Gold.