Inform School

NOTE: This "game" warns about the possibility (certainty!) of eventually crashing your interpreter. This will happen. It also warns about possibly locking up your entire computer. This is highly unlikely in modern OSes. The warning stands - but your OS will most probably be safe. I asked around about it and got this helpful answer from Zarf:

"I believe the specific issue is if the game tries to write to a memory address outside the Z-machine's allocated range. (Most Inform games manage to avoid this, but Inform School allows the player to set up some crazy code constructions. This is what the author is warning you about.)

A good interpreter will check all game memory accesses, and throw a fatal error if anything is out of bounds. Early interpreters didn't always do this, because of the CPU cost of these constant checks. At this point all interpreters should do it. Even on mobile devices, which are (at this point) as powerful as 1999-era desktop machines, anyhow."