Spatterlight combines the abilities of many interpreters and is able to play games targeted for the following platforms: ADRIFT (up to version 4), AdvSys, AGT, Alan, Glulx, Hugo, Level 9, Magnetic, TADS 2, TADS 3, and Z-code (except version 6). HTML TADS is not supported yet (text only).
This makes it a good all-purpose interpreter that can play virtually all interactive fiction that is supported on the Mac.
It is replacing Cugel, from the same author.
See also: Gargoyle, a similar program for MS-Windows, macOS and Unix.