In a future world that is highly technologically advanced but plunged into disaster, a horrifying bio-catastrophe erupts, turning the majority of humanity into rampaging bio-monsters, while infected organisms continue to spread and proliferate. Simultaneously, cities suffer immense destruction, and people find themselves in a state of panic and chaos.

The player assumes the role of a biochemist who, at the onset of the catastrophe, becomes trapped in an abandoned laboratory. In this laboratory, the player inadvertently discovers a unique bio-virus capable of controlling and altering the genetic makeup of living organisms. In order to survive and find a solution, the player decides to utilize this virus, injecting it to enhance their own body, transforming into a cyber rodent to gain powerful abilities while maintaining sanity to combat the mutated bio-monsters.

As the player embarks on an adventure in the abandoned city, they find companions to fight alongside. Together, they strive for a glimmer of hope in the midst of the disaster, aiming to rescue the world from its dire straits and rebuild their homes.

"City of Greed: Cyber Rodent" is a hardcore action-survival game.

Main Gameplay:

Players actively engage enemies, avoid their attacks, collect gems for upgrades, and continuously acquire skills and buffs in each level.
Engage in a prolonged battle against the monster legion, challenging who can survive the longest until the battlefield closes, marking the completion of the level.

Squad Gameplay:

At the start, players choose a character and rescue new characters by operating them.
Each character possesses unique skills, and players can have a maximum of three characters per game. Proper coordination between characters enhances the chances of survival.

Treasure System:

Players can obtain treasures by opening chests, categorized into four types: Wisdom, Willpower, Strength, and Wealth.
Treasures come in three qualities: Rare, Excellent, and Epic. Players can use items and coins to upgrade and promote treasures. Excellent and Epic treasures create bonds, providing additional bond effects.

Town System:

In the intense battle against the monster legion, besides the power boost from treasures, there are attribute bonuses from town development.
Players obtain coins and repair fluid in combat to unlock and upgrade town buildings. With the continuous growth of building levels, players gain more powerful skills and additional attribute bonuses.