About this game
Toxic Arena: Biological Threat is an action roguelike survivor set in the middle of a global biological catastrophe. You find yourself trapped in an arena with endless waves of mutants, and your only goal is to last as long as you can. It is a direct test of your nerves and reaction time, and every round pushes you to keep your head clear under pressure.
Each minute brings a fresh challenge. The enemy waves keep growing, so you need to read the battlefield, plan your movement, and pick the right moment to act. The game runs straight in the browser with no setup, so you can jump in for a quick session or push for a long run.
After each level you choose from unique upgrades that shape how your fighter plays. You can boost damage or fire rate, or unlock abilities such as ricochet shots and armor penetration. As you gather biological experience and unlock new mutations, your build options grow, letting you try different strategies and aim for a new personal best.
How to play
Move with WASD or the arrow keys. As the waves grow, pick one of the upgrade options to strengthen your weapon. Your goal is to survive as long as possible and beat your own record.