<s>
EcoQuest	B-Application
:	I-Application
The	I-Application
Search	I-Application
for	I-Application
Cetus	I-Application
is	O
an	O
educational	O
adventure	O
game	O
developed	O
by	O
Sierra	O
On-Line	O
.	O
</s>
<s>
The	O
game	O
was	O
going	O
to	O
be	O
ported	O
to	O
Amiga	B-Device
and	O
Macintosh	B-Device
,	O
but	O
those	O
releases	O
never	O
came	O
out	O
.	O
</s>
<s>
A	O
sequel	O
,	O
Lost	B-Application
Secret	I-Application
of	I-Application
the	I-Application
Rainforest	I-Application
,	O
was	O
released	O
in	O
1993	O
.	O
</s>
<s>
The	O
last	O
of	O
Sierra	O
's	O
various	O
Quest	O
series	O
,	O
EcoQuest	B-Application
is	O
designed	O
to	O
teach	O
about	O
the	O
importance	O
of	O
environmental	O
ethics	O
.	O
</s>
<s>
Both	O
use	O
a	O
fully	O
mouse-driven	O
version	O
of	O
SCI1	O
,	O
in	O
the	O
manner	O
of	O
Space	B-Application
Quest	I-Application
IV	I-Application
and	O
King	B-Application
's	I-Application
Quest	I-Application
VI	I-Application
.	O
</s>
<s>
The	O
Search	O
for	O
Cetus	O
was	O
released	O
first	O
on	O
floppy	B-Device
disk	I-Device
,	O
then	O
on	O
CD-ROM	B-Device
with	O
full	O
speech	O
in	O
1992	O
.	O
</s>
<s>
Adam	O
's	O
attempts	O
to	O
help	O
a	O
dolphin	B-Application
named	O
Delphineus	O
that	O
his	O
father	O
has	O
rescued	O
,	O
takes	O
a	O
turn	O
for	O
the	O
weirder	O
when	O
the	O
dolphin	B-Application
starts	O
talking	O
.	O
</s>
<s>
In	O
Lost	B-Application
Secret	I-Application
of	I-Application
the	I-Application
Rainforest	I-Application
(	O
aka	O
EcoQuest	B-Application
II	O
,	O
though	O
this	O
does	O
not	O
appear	O
in	O
the	O
game	O
's	O
title	O
)	O
,	O
the	O
second	O
installment	O
in	O
the	O
series	O
,	O
Adam	O
,	O
now	O
slightly	O
older	O
and	O
able	O
to	O
speak	O
with	O
animals	O
as	O
a	O
matter	O
of	O
course	O
,	O
explores	O
the	O
tropical	O
rainforest	O
in	O
search	O
of	O
a	O
cure	O
of	O
a	O
disease	O
afflicting	O
the	O
local	O
Indigenous	O
peoples	O
of	O
South	O
America	O
,	O
and	O
a	O
way	O
to	O
save	O
the	O
rainforest	O
from	O
destruction	O
.	O
</s>
