Escapade!
An interactive fiction by Juhana Leinonen (2008) - the Inform 7 source text
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The ceiling-trapdoor is scenery in the cell. The printed name is "[if the cell is dark]largish square[otherwise]wooden square[end if]". It is unspecified, self-lit and distant. The description is "[if the cell is dark]There's a largish square up in the ceiling on one side[otherwise if the trapdoor is not open]There's a wooden square up in the ceiling on one side[otherwise if the trapdoor is familiar and the trapdoor is in the middle]The trapdoor hangs open in the ceiling right above itself. Oof, your head hurts[otherwise if the trapdoor is familiar]The trapdoor hangs open in the ceiling on the opposite side of itself. Which is a bit strange, but hey[end if]."
Understand "square" and "largish" and "wooden" as the ceiling-trapdoor.