Description

A minimalist ecosystem of circles, tracks, and projectiles. You are a tanklike creature with three nutrient stores: protein builds permanent upgrades for this run, sugar supplies immediate energy, and fat keeps you going when sugar runs out. Survive as long as you can.

Instructions

• Move and shoot: use WASD or the arrow keys. Point and hold the mouse button to aim and shoot. Hold Space for auto-aimed fire, or use the touch controls. Click the arena to focus keyboard controls.
• Sugar: touch or shoot stationary green plant circles, then move near the green drop to absorb it. Plants contain only sugar. Sugar drains continuously; movement and firing use additional energy.
• Fat: defeated tanks drop fat and protein. Move close to draw the drop in automatically. Fat burns only after sugar is exhausted, and one fat unit supplies four sugar-equivalent energy units. A new sugar pickup takes priority again.
• Protein: spend it on speed with 1 or shot damage with 2, or use the upgrade buttons. Each branch has increasing costs and a maximum of 12 upgrades. Protein does not burn as fuel.
• Survival: enemy shots and collisions hurt you. With neither sugar nor fat, you slow down and lose health. With fuel, health recovers slowly after you stop taking hits. New plants grow throughout the arena.
• Competitors: scouts move quickly, hunters balance speed and damage, and bruisers fire harder shots. Enemy strength and population rise gradually with your upgrades, victories, and survival time. Dashed rings warn you before new enemies become active.
• Pause: press P or Escape. Leaving the game or switching tabs pauses it automatically. Resume or start a new run after defeat.

This is a simplified game economy: its nutrient units and conversion rules are game mechanics.