Unknown Force is a Half-Life 2: Episode 1 Modification in progress. Its currently under development by Simon Albrecht. The mod is planned to contain 2 chapters or more, with each chapter spend over 1-2 map(s).
After arriving with a razor-train, test subject AI5 finds himself behind the enemy lines. The character is being contacted through messages by a person called Mason, who supposedly is the mastermind behind this mission. Mason orders AI5 to gather information from the combine-infested place.
The mod is still in its early stages, although many of the vital non-mapping parts are done. Development is still in the first map, which is nearly done. Note: This page will update during development ...
Moddb page: