Spider

The spider was the second mob added to the game. Unlike other hostile mobs (1x1x2 box), the spider is a flat mob (2x2x1 box). It cannot enter the same narrow spaces that zombies and other tall mobs can, but it can crawl into places where the ceiling is too low for any other mobs.

Survival: The spider is basically a zombie that can jump farther. Seeing as they are much larger than zombies, they can be hit rather easily with arrows. A lone spider is easy enough to deal with, but a pack can quickly close distance on you due to their jumping ability. Killing this mob nets 105 points.

Alpha: The spider is drastically different from the zombie. For starters, their eyes glow red and it has multiple model skins. It moves at the same speed as in Survival, but its jumping ability is significantly improved. Like in Indev/Infdev mode, you cannot out-run a spider. Spiders will not burn during the day, but will also become neutral, not becoming aggressive until you attack them (if a mob attacks the spider it will attack the mob back). If they were chasing the player during night they will usually continue. Spiders make a sound somewhat like someone slurping a straw and their distinctive noise can warn you of their presence.

Steed variant
When a spider is spawned it has a 1 in 100 chance of having a skeleton spawn with it riding on its back. They are separate enemies though and have separate health bars. This "Spider jockey" has both the ranged arrow attack of a skeleton and the mobility of a spider as well as larger combined health.



Drops
Survival: Alpha:
 * no dropped items
 * 105 points
 * 0-2 units of string