Research and Development is a puzzle-centric mod for Half-Life 2: Episode Two featuring an unarmed player but plenty of violent mayhem.
Amazing! I really enjoyed the crap outta this mod and I'm sad it is so short. MAKE MORE,dammit, more more more! I had the background-not-found issue at first startup, cut and pasted the readme patch and everything went smoothly from there. Don't let the lack of guns fool you, some of these puzzles are chock full of action and mayhem. Actually, most are. Great fun, I laughed out loud, yadayada, just play it.