A term coined by Ben Lehman on The Forge for "the quality of unity and robustness of the shared imagined space, manifest in both in John Kim's descriptions of RGFA Simulationism and in the structures of Universalis." This is considered essentially a synonym for the original meaning of Simulationism within the rgfa Threefold Model.

It means resolving in-game events according to in-game world logic, or if not then arbitrarily. The dramatic situation or fairness to the players should not influence the in-game events. Note that this does include making meta-game choices using such considerations. For example, some events will be played out in more detail than others, presumably on the basis of what the players are interested in.

References:

• Open Play for the Soul (The Forge, Nov 2003)
• Threefold Simulationism Explained (Jan 2004)
• Subtyping Sim (The Forge, May 2004)
• Virtuality and Ouija Boards (The Forge, Jun 2004)