Tower Defenders is a tower-defense game that allows players to control different characters and fight against waves of enemies in order to save the world from destruction. The game features a variety of enemies, towers, and upgrades that can be purchased using in-game gold or real money.
There are a total of 21 slots available for players to purchase using both methods.
Players can increase their chances of getting more slots by playing the game and completing challenges. Players can also purchase additional slots using in-game gold or real money.
However, the best way to get more slots is by completing special offers that are available from time to time. These offers include bonus coins, in-game items, and even additional slots.