Exo Insomnia is a mobile RPG that combines strategic elements with immersive gameplay. Players can build a team of unique characters, each possessing distinct abilities and traits. The game features tactical strategy construction, engaging battles, and storyline missions across various modes, including PvE, PvP, and cooperative events. This variety allows players to develop their heroes, enhance gear, and compete against others, making it suitable for both newcomers and seasoned players.

The game offers several unique features, such as a lens system for character synergy, tactical battles that emphasize strategic placement, and a collection of over 60 heroes with individual skills and backstories. Automatic battles simplify routine tasks, while a deep progression system enhances character development. Regular events provide unique rewards, and the vibrant 2D graphics and animations contribute to an engaging visual experience.