Tower Defense Strategy:
The key to success in Alien Creeps - Tower Defense is to develop a strong strategy for your towers and weapons. There are four types of towers in the game, each with its own unique advantages and disadvantages. Laser towers, for example, are great for attacking large groups of enemies, while missile towers are better for taking out individual targets. Tesla towers are great for slowing down enemies, making them easier targets for your other towers, while machine gun towers are useful for attacking rushing enemies or bosses.

In addition to towers, players can also use special abilities to defeat the enemy invaders. These abilities include airstrikes, mines, and other powerful weapons that can be used to take out large groups of enemies at once. To be successful in Alien Creeps - Tower Defense, it's important to understand the strengths and weaknesses of each tower and ability, and to use them strategically to overcome the enemy attacks.

Leveling Up:
To progress through the game and unlock new levels and tower upgrades, players need to level up quickly. There are a few key strategies that can help players level up quickly in Alien Creeps - Tower Defense. First, it's important to defeat as many enemy waves as possible, as this will earn you experience points and other rewards. Additionally, players can earn extra experience points by completing in-game objectives, such as killing a certain number of enemies, completing a level without taking any damage, or achieving a high score.

Players can also earn extra resources and other rewards by completing daily missions and participating in special events. These events are typically timed, and offer unique challenges and rewards that can help players level up more quickly and earn more rewards overall.

In-Game Currency:
In Alien Creeps - Tower Defense, players can earn and spend two types of in-game currency: coins and gems. Coins can be earned by completing levels and defeating enemies, and can be used to purchase and upgrade towers and other weapons. Gems, on the other hand, are harder to come by, and can be used to purchase more powerful weapons and abilities, as well as to speed up construction times and other in-game actions.

Players can earn gems by completing special challenges and events, or by purchasing them with real money through the in-game store. However, it's important to use gems strategically, as they can be difficult to come by and are valuable for purchasing the more powerful weapons and abilities in the game.

Conclusion:
Alien Creeps - Tower Defense is an exciting and challenging tower defense game that requires players to use strategy and skill to defend their base against waves of alien attacks. By using a strong tower defense strategy and earning and spending resources strategically, players can level up quickly and progress through the game more easily. With dozens of levels and unique challenges to complete, Alien Creeps - Tower Defense offers hours of addictive gameplay and a chance to see how well you can defend your base against the alien invaders.