Toxic Arena: Biological Threat

• Free
• No download
• Works on phones
• Adventure Games
• Zombie Games

About the game

Mutants flood a walled arena, and you are the lone fighter holding them off. Each level up lets you pick a mutation, such as more damage, faster fire, ricochet shots or armor penetration. Guns drop in rarities from Common to Legendary, and a better weapon buys you breathing room.

Waves grow with every minute, so the arena gets crowded fast. The maps change too, from gloomy forests to abandoned military bases and secret labs. Every run ends with a score, and the global leaderboard is there for anyone chasing a record.

How to play

• Walk with W A S D or the arrow keys, aim by moving the mouse, and shoot with the left mouse button.
• Press R to reload, so keep an eye on your magazine. Hit Space to dash out when mutants surround you.
• On a phone, the left joystick moves you, the right joystick aims and fires automatically, and the reload icon reloads by hand.
• Keep moving, since a standing target gets eaten. Read each mutation description and combine upgrades that work well together.