The Moon, similarly to the Sun, illuminates blocks open to the sky with a maximum light level of 4, as opposed to the sun's 15. This allows Daylight Sensors to be rigged to a night/day clock, since they will not respond to light levels of 4.
PhasesThe moon has eight phases:
- New Moon
- Waxing Crescent
- First Quarte s
- Waxing Gibbous
- Full Moon
- Waning Gibbous
- Last Quarter
- Waning Crescent
These phases allow the player to keep track of the days. In addition, they regulate how much Slimes spawn in Swamp Biomes; a full moon means lots of slimes, and a new moon means none. This feature was added in 1.5.
In addition, post-1.6, Skeletons and Zombies spawned during a full moon have a much higher chance to have armor or be able to pick up items. Spiders and Cave Spiders have a higher chance to spawn with potion effects. Note that these chances will diminish as the world goes on.