Tower of Guardian is a 2D fantasy platformer RPG developed by Mostdeep Games. The game follows the adventures of Liszt Arc, a princess of the light wizard from Aluria Kingdom, on her quest to find her missing friend and siblings from the mysterious Tower of Darkness. The tower is possessed by an unknown darkness presence that causes eternal rain in the kingdom, and it's up to Liszt to face the danger inside.

The game offers various key features, including the ability to embrace new skills as you progress, play with in-game time simulation, and unlock secrets and various bosses as you explore the dungeon. Additionally, the game offers a quest log feature with main and side quests, and the player can explore a large world consisting of six floors in the tower, along with two extra stories. There's also a randomly generated forest extra stage and other mini-games area on the sky and under the water.

Overall, Tower of Guardian is an exciting game that offers players a thrilling adventure in a fantasy world.