In Idle Space Tower Defence, you can upgrade your towers by investing coins in permanent upgrades. These upgrades will help strengthen your base and make it more effective at repelling attackers.

You will face waves of various enemies in Idle Space Tower Defence. Each wave brings new challenges as the enemies become stronger and more diverse.

There is no strict limit to the number of upgrades you can purchase, but each upgrade requires a certain amount of coins. The key is to strategically allocate your resources.

Yes, you can customize your spacebase by upgrading different aspects of your defenses. This includes upgrading individual towers, improving overall base defenses, and enhancing your attack capabilities.

The auto-play feature allows you to let the game progress automatically while you are away. It will continue to defend your spacebase and earn coins for you, so you can come back and upgrade your defenses later.

Yes, there are various power-ups and special abilities that can be unlocked or purchased. These can provide temporary boosts to your defenses or offer unique attack options against the enemy waves.

Improving your strategy involves careful planning of where to place your towers and when to upgrade them. Consider the paths the enemies take and the strengths and weaknesses of different tower types.

If your spacebase gets overwhelmed, you can try adjusting your defense strategy, focusing on upgrading key areas, and making better use of available resources to prevent future attacks.