Kellri's Weird Science is a short pdf compatible with all science-fiction and pulp roleplaying games. Inside you'll find a complete system for creating oddball inventions from death ray projectors to time machines. Also included is a system for handling player or NPC research, with all of the breakthroughs and pitfalls you expect. So, what are you waiting for? Download the article, grab some dice and a pad of paper, and start your career as a mad scientist today!