Research and Development is a puzzle-centric mod for Half-Life 2: Episode Two featuring an unarmed player but plenty of violent mayhem.
Seriously one of the best mods I've ever played!
Everything was brilliant, and especially the mapping!
The concept of this game, is from what I've seen, not very common! And it is done in a great way! The concept is completed in such a great way!
10/10 for sure!