Sierra Discovery Series games in order

All 8 games of the Sierra Discovery Series series in the order they came out, from Mixed-Up Mother Goose (1987) to Spelling Jungle (1993).

1. 
   Mixed-Up Mother GooseApple II, Mac, Apple IIGS +2 · Sierra Entertainment
   1987
2. 
   EcoQuest: The Search for CetusPC, DOS · Sierra Entertainment
   1991
3. 
   Mixed-Up Fairy TalesDOS · Sierra Entertainment
   1991
4. 
   Quarky & Quaysoo's Turbo ScienceDOS, PC · The Incredible Machine
   1 Feb
5. 
   The Island of Dr. BrainDOS · Sierra Entertainment
   1992
6. 
   Pepper's Adventures in TimePC, DOS · Sierra Entertainment
   1 Feb
7. 
   Lost Secret of the RainforestPC, DOS · Sierra Entertainment
   1993
8. 
   Spelling JungleDOS, PC, Mac · Bright Star Technology
   1993