Expand.io

Developer:Fennec Labs
Release date:26 Oct 2026
Technology:HTML5
Platform:Browser (desktop, tablet, mobile)

Every match in Expand.io puts you in control of an agile sphere competing against online players across a shared grid. Success requires strategic spatial management as you push into contested areas, guard your boundaries, and continuously absorb energy to dominate the arena.

Expanding Territory Through Orb Absorption

Growth begins the moment you enter the map. As you direct your cell across the grid, harvesting scattered power orbs expands your total size and energy mass. This increased size gives you a broader footprint across the field, allowing you to secure larger regions of the arena while keeping smaller opponents at bay.

Controls

WASD / Mouse: Navigate across four directions
Touchscreen Joystick: Mobile virtual controller for touchscreen play

Surviving Size Dynamics and Board Encounters

Maintaining top rank on the live leaderboard depends on how effectively you interact with opponents of varying sizes

Hunting Smaller Cells: Larger spheres naturally possess an offensive advantage, allowing you to target smaller players and consume their mass to boost your score
Evasive Maneuvers: When starting small, rely on swift movements to dodge larger competitors hunting for easy mass
Strategic Traps: Nimble players can use tight maneuvers along contested space, baiting overaggressive rivals into misjudging their path and exposing themselves to counter-attacks

Protecting your borders while steadily invading nearby territory ensures you stay competitive as the live match unfolds.