Koan is a Z-machine 5 interactive fiction game written with Inform 5 and is by Esa Peuha. It was released in 2002 without copyright. It was entered in IF Comp 2002 where it took 35th place.
Review by David Welbourn
Not much to this game, is there? I finished it in eleven minutes and that includes being confused by the misleading description of the pot when it's still on the pillar. Bare minimal location descriptions (without even any mention of available directions to travel in) add to the dullness of this remarkably brief game.