Kiershar | Minecraft : Practical monster trap for SMP-PvP @kiershar | Uploaded January 2011 | Updated October 2024, 2 hours ago.
This monster trap is designed to be quick and easy to make. The layout is also very stealthy as it cover less chunks and is entirely horizontal. Built at around layer 22 and only 5 layers high! Also works in singleplayer.

Produces an infinite amount of sulfur, arrows and bones. Should take about 2 hours to make for one experienced person, less than an hour if a few works on it at the same time.

You will need about 4 diamond picks, 1 diamond shovel, 2 buckets of water, 1 bucket of lava, 3 stacks of logs and a lot of torches. When building the collector, you can't make items flow toward the north, so you might have to do it toward the left instead of the right, depending on your mob trap orientation.

Link for the tutorial on the flat collector : youtube.com/watch?v=lHQ-EvC8ay0

Check out better mob traps :
Flushing mobtrap : youtube.com/watch?v=2yhe8ptSAIc
Mobtrap with minecart : youtube.com/watch?v=o7HuJQjoyBY

Related tutorials :
Lava blade tutorial : youtube.com/watch?v=9GoDyie9XmQ
Diamond mines (and layers) : youtube.com/watch?v=7Jx1Unhhn94
Cannon 101 (use sulfur to make TNT) : youtube.com/watch?v=QyJta8yKQhg
Record Farming : youtube.com/watch?v=LW0Vt4eO3AM