Ace Alliance: Merge&Adventure

Ace Alliance is a portrait-oriented RPG with idle progression that can be played in short, interruptible sessions. While it features a light story and can be played one-handed, progression is heavily gated by energy timers and a pay-to-win monetization model, making it difficult for free-to-play users. This game is best suited for players who enjoy idle progression and are willing to engage with or tolerate its aggressive monetization.