Cosmic Defender
About Cosmic Defender
How to Play
Move your ship with the mouse cursor, by touch-dragging on mobile, or with the A and D keys or left and right arrows. Fire by holding a mouse click, holding touch, or holding the spacebar. Press Escape or P for the pause menu.
Controls
- Click to interact
- Drag with mouse to aim or move
- Move mouse to control
Tips & Tricks
Hold fire continuously rather than tapping — the controls are built around a held input, and there is no reload or overheat to manage. Learn each formation's descent pattern instead of chasing individual ships; positioning yourself where the formation will be is far more effective than reacting to where it currently is.
Game Info
- Category
- action
- Platform
- Web Browser
- Price
- Free
- Added
- Jul 28, 2026
More Action Games Games
Combat Guardian: Under Attack
A top-down arcade shooter that fights its way across all fifty US states, one level each.
epicshooter3d
A no-frills browser FPS with no installs, accounts, or waiting.
Rocket Fuel Tycoon
An idle tycoon about extracting oil, fuelling rockets, and expanding across the cosmos.
Zombie Quell 3D
A top-down zombie shooter across fifteen levels, with an upgrade shop between runs.