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You 100
Shield Stored 0/2 0
0:00
Your Arena Default Arena
Rival 100
Shield 0
Sphere Spiral
12
charged 4.0s
Shield x0
Surge
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F Press F to alternate between minimized and maximized play

Colosphereum™

Player-Crafted Arena Duels

Public Beta
Gladiator Pilot

Sphere Colors

Leaderboard

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    Weapon
    Craft Your Arena Default Arena - Included

    Each match randomly chooses your arena or your opponent's arena.

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    © 2026 Colosphereum™

    Craft Your Arena

    Select a piece. Use ← → to rotate it

    Opponents will fight you in the arena that you create. Make an arena that gives you an edge!

    Your Arenas 0/3
    Fairness Requirements

    Required: 4 shield orbs and at least 4 shapes on each side. Shield orbs cannot be placed on the dotted horizontal line.

    Top Side0/4 shields0/4 shapes Bottom Side0/4 shields0/4 shapes
    Complete both sides to save.

    You don't have to place every available piece.

    You don't have to use every available cut.

    Blocks
    Arena & Bleachers

    ←→Rotate selected piece

    Select a piece

    Matchmaking

    Finding an opponent

    10 seconds
    Arena Hint

    Craft unique arenas to defeat your opponent

    Arena menu

    Menu

    Top 50

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      Round complete

      Victory

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