A Circle Among Squares

A Circle Among Squares is a game about surviving levels as a circle surrounded by squares. You shoot in the direction your arrow faces, aiming to hit enemies or make them shoot one another. There are 200 levels, and clearing each one permanently unlocks the next. Progress autosaves, and failing a level has no consequences.

Enemies and hazards

The three enemy types include enemies that shoot in a direction, enemies that shoot in four directions at once, and enemies that kill you by touch instead of firing. Enemies vary in speed and shooting rate, from slow to very quick. Some follow or flee from you, some move along predetermined paths, and others stay still. Enemies die in one hit, and so do you; the early levels are often quick and easy, while later levels become much harder.

Squares and blocks

The floor lets anyone move freely across it. Other squares affect movement and bullets in different ways:

• Blocks stop movement and bullets and cannot be destroyed.
• Reflective blocks stop movement and reflect bullets.
• Selective blocks let only enemy bullets pass, or only bullets coming from the direction of the block’s arrow; the arrow-based block has four variations.
• Reflective and deflective blocks may turn bullets 90 degrees or reflect them, depending on the bullet’s direction. They have four variations.
• Teleportation squares come in pairs and can be used only by you.
• Holes block movement but not bullets.

Key features

• 200 levels
• 3 enemy types, with varying speeds, shooting rates and movement patterns
• Block, reflection, deflection and teleport elements
• Autosave
• Minimalist design
• 100 achievements