Dungeons and Dragons design veteran Jeff Grub recalls the origins of Spelljammer, an early-1990s D&D supplement that allowed players to launch their faux-medieval fantasy campaigns into outer space.
Here is the image I pitched. A knight standing on the deck of a ship in space. He doesn’t freeze. He doesn’t blow up. He doesn’t float away. Everything that follows comes out of that one image, which is captured (with more to it as well) on the final cover Jeff Easley did. All what people have called “Grubbian Physics” with its air envelopes and its gravity planes, comes from creating a universe where that image is true.
The idea using a single image as a design cornerstone for a game (or a role-playing game’s setting) resonates with me. A single, powerful seed-image also lay at the core of The Warbler’s Nest, and was instrumental in getting me to actually complete and ship the game. I really just wanted make it real and share it as an experience; the rest of the game was almost just a delivery system for that one moment. (Which helps to explain why the whole thing’s so short…)