Scribblenauts Unlimited will launch with Steam Workshop on PC, 5th Cell announced today at PAX. A pre-show demonstration of the game detailed how players will be able to create objected, and the keyboard and mouse controls were also demoed. At present, the PC version supports WASD movement as well as click-to-move control with the mouse. The Steam version will feature Steam achievements and sharing through Steam Workshop. 5th Cell said over 300 puzzles will be included in the game, over 100,000 words and adjectives, and the Object Editor. Scribblenauts Unlimited is slated for release on 3DS, PC, and Wii U later this year. Via Polygon.