A Bear's Night Out is a text based game for Mac in which you incarnate a child's teddy bear and come alive at night.  

Story: You were on a 7 day leisure cruise, when your ship was hit by a horrible hurricane, and it sinks. You swim for a long time, and then you see what appears to be an island aheead to the north. Maybe it's a mirage. You can also swim...

ADVSYS - An Adventure Writing System... that's all I can say about it and the fact that I could only got it to run on Mini vMac under Mac OS 4.1 or lower.  This looks like a very early text based adventure game editor.  AdvCom seems to...