Night Valley - Tower Defense

This is a challenging tower defense game that can be played in short, interruptible sessions, likely in portrait mode. While it offers a solo, intense experience with high replay value due to its difficulty, progression is heavily gated behind pay-to-win mechanics or excessive grinding and ad watching, making it frustrating for free-to-play users. It's best suited for players who enjoy difficult, strategic challenges and don't mind the aggressive monetization.