Glenn’s Gases Mod 1.6.4

Glenn’s Gases introduces gases into the Minecraft world. In real life mining, gases can be extremely dangerous. Without doubt, it will be a challenge in Minecraft too. Glenn’s Gases adds problems to make mining much harder, as well as solutions to these problems.

Features:

Neat flowing gases with different properties!
Generated gas pockets! They don’t surface in the caves, so you’ll only find them if you dig for them.
Smoke!
Deadly steam! Better be careful when farming that obsidian.
Lanterns! They might look fancy but they are vital to your survival!
Gas Pipes, pumps, collectors, and filtering!
Gas Furnace! It’s faster, and can smelt a whole stack of coal into a diamond!
More!

Download: http://www.5minecraft.net/glenns-gases-mod/