Cavern Zero

You start with five lives and twenty bullets. Run a deadly maze patrolled by treaded robots, giant spiders and ammunition-stealing slime. Make each shot count: bolts pierce enemies until they strike a wall.

Two difficulty levels are available as well as two environments.  Choose the Man-Made Labyrinth or Natural Cave theme, and switch to minimal lighting for a tougher survival challenge. Play with keyboard, a compatible controller, or touch controls.

This is a tribute to Dark Cavern (1982), one of my favorite Atari 2600 games.

Controls:

- Keyboard: arrows / WASD to move, Space to fire, P / Escape to pause.

- Xbox / standard controller: D-pad / left stick to move, A / right trigger to fire, Menu to pause. A also starts or resumes.

- Touch: slide on the D-pad, hold FIRE, tap the pause button.

- T switches the maze theme; L switches lighting. H opens the full player guide.