This is an extension to Action! System with rules for environmental effects, survival equipment... and parachuting!

Publisher's blurb: " Hostile World contains 37 pages of expanded rules for Wilderness, Weather, and Environments in Action! System games. Includes new equipment to help characters survive in a hostile world! New rules for Parachuting! Get ready for some wild Action! Beef up your Action! System game with A Hostile World!"

More when I get hold of a copy!

Click HERE to buy this from RPG Now.

Book Details:
Author: Mark Arsenault
Publishers' Reference: GRGAHWE
ISBN: Unknown
PDF, 39 pages
Date: December 2003