Astrosaurus — Dinoastronaut Adventure

Astrosaurus is a free retro browser game. Pilot a pixel-art T-rex in a space helmet across a 10,500-pixel asteroid field while oxygen drains. As oxygen depletes, gravity grows heavier and your jumps get weaker — you race your own decay toward the spacecraft at the far end.

How to play

• Move with Arrow Keys or A / D
• Jump with Space or W
• Pause with Escape, fullscreen with F

Features

• Dynamic oxygen-driven physics — gravity and jump strength degrade as your tank empties
• Three asteroid types: stable, crumbling (2 second timer), and vertically drifting
• 60+ asteroids across four escalating sections with three oxygen recharge stations
• 16 comet hazards falling at angles plus 7 horizontal debris movers
• 8-bit pixel art, Phaser 3, 60 FPS, keyboard-only, no install

Target run time: 2 to 2.5 minutes. Desktop browsers only.