How to Play Tower Defence:

Tower Defense is a game mode in Blooket where you answer questions, build towers, and design your defense to protect yourself from waves of evil blooks. It gets more difficult as you clear more rounds by adding more and stronger enemies. Tower Defense can be played on different maps. There are currently three maps released, there are pictures of them below.

Towers

Towers are blooks that can be bought and placed in spaces with no track or object already occupying that space. Each tower has a price and 3 upgrades (each upgrade having 2 choices) The first two upgrades do not alter the units look in any way and just gives them a bronze/silver base and a buff (eg. range, damage, firing speed). The first tier of upgrades gives the tower a bronze base representing the second lowest place on a leaderboard, 3rd. The next tier of upgrades gives the tower a silver base representing second place on a leaderboard. The third and final tier of upgrades gives the tower a golden base and changes the look of a tower and also gives it a special ability.

Sell Prices:
All sell prices are 50% of the cost (including upgrades). 

All units have 3 Stats:
Damage: The amount of damage a unit does to a enemy in its range (towers have damage caps)
Firing Rate: The cooldown of the attack (or in the jester's case, buffing)
Range: The area in which the tower is capable of attacking (or in the jester's case, buffing)