Toxic Arena: Biological Threat is a free Shooting game you can play instantly in your browser, with no download and no registration. How to play: Survive the harsh conditions of Toxic Arena Biological Threat repelling endless mutant attacks Collect biological experience unlock unique mutations and upgrade your arsenal to last as long as possible and set a new record PC Controls WASD or Arrow. It renders at 800 by 600 pixels and scales to your window. It joined SaGo Games on October 29, 2026. It is an HTML5 build, so it loads in any modern desktop or mobile browser.
Toxic Arena: Biological Threat is a thrilling action-roguelike survivors game where your only goal is to survive in the heart of a global biological catastrophe. You are a fighter trapped on an arena with endless hordes of mutants. Test your nerves and your reaction time! What awaits you: Insane Drive: Fight against ever-growing waves of enemies. Every minute on the arena is a new challenge and a test of your tactics. Deep Mutation System: Choose unique upgrades with each level! Increase damage, fire rate, or unlock abilities like ricochet and armor penetration.