What's a good iOS game for casual idle tower defense gameplay?

The Tower - Idle Tower Defense is a great choice for casual idle tower defense on iOS. Its simple graphics make it easy to jump into for a few minutes at a time, perfect for short play sessions. The game's idle mechanics allow you to progress even when you're not actively playing, making it a good fit for players who enjoy incremental progress. You can upgrade your tower and defenses to withstand increasingly challenging waves of enemies. The game balances simplicity with enough depth to keep you engaged, offering a satisfying sense of progression as you strengthen your tower and unlock new abilities. The absence of disruptive mid-game ads, as highlighted by user reviews, contributes to a smoother and more enjoyable experience, allowing you to focus on the core gameplay loop.