Rotten Tide

Rotten Tide is a horizontal 2D tower defense game in which you command Tetra Force, a post-national anti-biohazard force protecting people in major cities around the world. Monsters of unknown origin threaten humanity, with different appearances and abilities depending on the countries where they are found. Tetra Force has established branches worldwide to rescue survivors and save humanity.

Command Tetra Force

You assemble a team from more than 20 highly trained agents recruited from around the world. Each agent has different characteristics and a distinct skill tree. Identify the type of creature you face, choose a suitable team and spend Credits, the game’s main currency, to upgrade agent skills and strengthen your forces.

Defend your base

Tetra Force bases contain objects such as Agent Producers and Turrets. To use them, you must rescue survivors and transport supply items yourself. How you use these objects affects a stage’s difficulty, so your strategy shapes how you protect the base and fight off the creatures.

Planned content

The description also outlines planned additions: evolving battlefields with new defense stages that differ from earlier ones, alongside special Tetra Force missions; base upgrades that unlock and improve objects; and battlefields in countries across Asia, Europe and America, featuring creatures with local characteristics as well as unknown monsters.