Strange Eons is a free cross-platform application written in Java designed to assist in making professional looking custom content for Fantasy Flight’s extremely popular Arkham Horror board game. Using the program, people have created everything from new investigators — including taking pop culture icons like SpongeBob SquarePants or the Buffy characters and converting them into the game — to creating entire expansion packs for the game. The sheer volume of free content out there for Arkham Horror created with Strange Eons is amazing. If you love Arkham Horror half as much as the cultists do, you need to check this out.