<s>
Trespasser	B-Application
is	O
a	O
1998	O
action-adventure	O
video	O
game	O
developed	O
by	O
DreamWorks	O
Interactive	O
and	O
published	O
by	O
Electronic	O
Arts	O
for	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
The	O
game	O
serves	O
as	O
a	O
sequel	O
to	O
the	O
1997	O
film	O
The	B-Application
Lost	I-Application
World	I-Application
:	I-Application
Jurassic	I-Application
Park	I-Application
,	O
taking	O
place	O
a	O
year	O
after	O
the	O
film	O
's	O
events	O
.	O
</s>
<s>
The	O
game	O
engine	O
of	O
Trespasser	B-Application
was	O
advanced	O
for	O
its	O
time	O
and	O
required	O
a	O
fast	O
and	O
powerful	O
computer	O
to	O
adequately	O
display	O
the	O
game	O
's	O
detailed	O
graphics	O
without	O
pixelation	B-Algorithm
artifacts	O
.	O
</s>
<s>
While	O
Jurassic	B-Application
Park	I-Application
was	O
built	O
on	O
Isla	O
Nublar	O
,	O
off	O
the	O
coast	O
of	O
Costa	O
Rica	O
,	O
the	O
animals	O
were	O
raised	O
at	O
an	O
alternate	O
location	O
,	O
Isla	O
Sorna	O
,	O
also	O
named	O
Site	O
B	O
.	O
Trespasser	B-Application
takes	O
place	O
a	O
year	O
after	O
the	O
events	O
of	O
The	B-Application
Lost	I-Application
World	I-Application
:	I-Application
Jurassic	I-Application
Park	I-Application
,	O
where	O
the	O
general	O
public	O
learned	O
about	O
the	O
existence	O
of	O
Jurassic	B-Application
Park	I-Application
.	O
</s>
<s>
After	O
defeating	O
the	O
Alpha	O
Velociraptor	B-Device
and	O
its	O
tribe	O
that	O
lives	O
atop	O
the	O
mountain	O
,	O
she	O
is	O
rescued	O
by	O
helicopter	O
.	O
</s>
<s>
As	O
she	O
traverses	O
the	O
island	O
,	O
Anne	O
will	O
often	O
talk	O
to	O
herself	O
or	O
remember	O
clips	O
of	O
John	O
Hammond	O
's	O
memoirs	O
(	O
voiced	O
by	O
Richard	O
Attenborough	O
)	O
describing	O
the	O
creation	O
(	O
and	O
downfall	O
)	O
of	O
Jurassic	B-Application
Park	I-Application
.	O
</s>
<s>
With	O
the	O
film	O
The	B-Application
Lost	I-Application
World	I-Application
:	I-Application
Jurassic	I-Application
Park	I-Application
expected	O
to	O
be	O
a	O
success	O
and	O
after	O
securing	O
the	O
movie	O
license	O
,	O
the	O
pair	O
approached	O
several	O
movie	O
animation	O
groups	O
before	O
signing	O
with	O
DreamWorks	O
Interactive	O
.	O
</s>
<s>
Adobe	O
Photoshop5	O
and	O
3D	B-Language
Studio	I-Language
Max	I-Language
were	O
used	O
to	O
produce	O
the	O
game	O
.	O
</s>
<s>
Trespasser	B-Application
went	O
severely	O
over-budget	O
several	O
times	O
throughout	O
its	O
development	O
.	O
</s>
<s>
After	O
developing	O
for	O
over	O
two	O
years	O
,	O
DreamWorks	O
Interactive	O
informed	O
the	O
development	O
team	O
in	O
April	O
1998	O
that	O
as	O
part	O
of	O
a	O
deal	O
with	O
AMD	O
,	O
Trespasser	B-Application
would	O
need	O
to	O
release	O
in	O
October	O
of	O
that	O
year	O
even	O
though	O
Blackley	O
estimated	O
Trespasser	B-Application
needed	O
at	O
least	O
another	O
year	O
of	O
development	O
to	O
be	O
release-ready	O
.	O
</s>
<s>
The	O
team	O
rushed	O
the	O
remainder	O
of	O
development	O
,	O
and	O
Trespasser	B-Application
released	O
as	O
an	O
unfinished	O
game	O
set	O
in	O
a	O
very	O
large	O
and	O
open	O
outdoor	O
environment	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
some	O
techniques	O
,	O
including	O
bump	O
mapping	O
and	O
image	O
caching	O
,	O
were	O
incompatible	O
with	O
graphics	B-Architecture
processing	I-Architecture
units	I-Architecture
.	O
</s>
<s>
Trespasser	B-Application
used	O
many	O
textures	O
for	O
its	O
mip	O
levels	O
and	O
image	O
cache	O
,	O
more	O
than	O
the	O
most	O
highly	O
lauded	O
gaming	O
card	O
of	O
the	O
time	O
,	O
the	O
Voodoo2	O
,	O
could	O
handle	O
,	O
and	O
the	O
game	O
used	O
the	O
lower	O
resolution	O
textures	O
in	O
hardware	O
mode	O
instead	O
of	O
the	O
high	O
resolution	O
ones	O
available	O
in	O
software	O
mode	O
.	O
</s>
<s>
The	O
Trespasser	B-Application
engine	O
contained	O
several	O
features	O
not	O
normally	O
seen	O
in	O
game	O
engines	O
at	O
the	O
time	O
.	O
</s>
<s>
In	O
addition	O
,	O
the	O
Trespasser	B-Application
engine	O
featured	O
the	O
first	O
game	O
world	O
to	O
be	O
completely	O
influenced	O
by	O
classical	O
mechanics	O
and	O
was	O
also	O
the	O
first	O
game	O
to	O
use	O
ragdoll	O
physics	O
.	O
</s>
<s>
Trespasser	B-Application
features	O
a	O
robust	O
physics	O
system	O
,	O
but	O
instead	O
of	O
accurate	O
,	O
per-polygon	O
collisions	O
,	O
Trespasser	B-Application
uses	O
a	O
"	O
Box	O
System	O
"	O
where	O
every	O
object	O
in	O
the	O
game	O
acts	O
as	O
if	O
it	O
is	O
encased	O
in	O
an	O
invisible	O
box	O
.	O
</s>
<s>
Additionally	O
,	O
Trespasser	B-Application
's	O
physics	O
are	O
based	O
on	O
the	O
Penalty	O
Force	O
Method	O
,	O
in	O
which	O
,	O
when	O
two	O
objects	O
collide	O
,	O
rather	O
than	O
stopping	O
movement	O
the	O
two	O
objects	O
push	O
away	O
from	O
one	O
another	O
until	O
they	O
are	O
no	O
longer	O
colliding	O
.	O
</s>
<s>
Andrew	O
Grant	O
was	O
Trespasser	B-Application
's	O
chief	O
artificial	B-Application
intelligence	I-Application
programmer	O
.	O
</s>
<s>
Every	O
animation	O
in	O
Trespasser	B-Application
is	O
done	O
using	O
inverse	B-General_Concept
kinematics	I-General_Concept
.	O
</s>
<s>
No	O
animation	O
in	O
the	O
game	O
is	O
pre-animated	O
;	O
every	O
movement	O
of	O
every	O
dinosaur	O
is	O
generated	O
automatically	O
through	O
their	O
artificial	B-Application
intelligence	I-Application
.	O
</s>
<s>
Trespasser	B-Application
was	O
designed	O
to	O
have	O
a	O
complex	O
artificial	B-Application
intelligence	I-Application
routine	O
,	O
giving	O
each	O
creature	O
on	O
the	O
island	O
its	O
own	O
set	O
of	O
emotions	O
and	O
the	O
possibility	O
of	O
dinosaurs	O
fighting	O
each	O
other	O
.	O
</s>
<s>
However	O
,	O
system	O
bugs	O
in	O
the	O
artificial	B-Application
intelligence	I-Application
routines	O
made	O
it	O
so	O
that	O
dinosaurs	O
would	O
switch	O
between	O
mood-based	O
actions	O
so	O
quickly	O
that	O
they	O
would	O
stop	O
moving	O
and	O
acting	O
.	O
</s>
<s>
Before	O
the	O
release	O
of	O
the	O
game	O
,	O
it	O
was	O
announced	O
that	O
Trespasser	B-Application
would	O
revolutionize	O
PC	O
gaming	O
,	O
however	O
reviews	O
after	O
release	O
were	O
mostly	O
negative	O
.	O
</s>
<s>
Trespasser	B-Application
was	O
a	O
critical	O
and	O
commercial	O
failure	O
,	O
selling	O
about	O
50,000	O
copies	O
.	O
</s>
<s>
In	O
the	O
end	O
,	O
though	O
,	O
it	O
's	O
clear	O
that	O
Trespasser	B-Application
had	O
a	O
reach	O
that	O
exceeded	O
its	O
grasp.	O
"	O
</s>
<s>
Alex	O
Huhtala	O
of	O
Computer	O
and	O
Video	O
Games	O
gave	O
the	O
game	O
a	O
score	O
of	O
1	O
out	O
of	O
5	O
,	O
criticising	O
the	O
"	O
technically	O
impressive	O
"	O
in-game	O
physics	O
for	O
making	O
simple	O
actions	O
frustrating	O
to	O
perform	O
,	O
and	O
concluding	O
"	O
Trespasser	B-Application
is	O
possibly	O
the	O
worst	O
game	O
I	O
've	O
ever	O
played.	O
"	O
</s>
<s>
One	O
reviewer	O
said	O
it	O
had	O
the	O
worst	O
clipping	B-Algorithm
he	O
had	O
ever	O
seen	O
with	O
another	O
reviewer	O
finding	O
the	O
game	O
experienced	O
slowdown	O
and	O
frame	O
rate	O
drops	O
.	O
</s>
<s>
GameSpot	O
included	O
Trespasser	B-Application
as	O
one	O
of	O
nominees	O
for	O
the	O
title	O
of	O
the	O
Most	O
Disappointing	O
Game	O
of	O
the	O
Year	O
(	O
"	O
losing	O
"	O
to	O
Star	B-Application
Wars	I-Application
Rebellion	I-Application
)	O
and	O
awarded	O
it	O
the	O
Worst	O
Game	O
of	O
the	O
Year	O
(	O
PC	O
)	O
,	O
commenting	O
:	O
"	O
Of	O
all	O
the	O
games	O
released	O
this	O
year	O
,	O
none	O
was	O
as	O
ill-received	O
and	O
terrible	O
as	O
Trespasser	B-Application
.	O
</s>
<s>
(	O
...	O
)	O
There	O
's	O
one	O
thing	O
we	O
wo	O
n't	O
forget	O
:	O
Trespasser	B-Application
was	O
undoubtedly	O
the	O
worst	O
game	O
of	O
1998.	O
"	O
</s>
<s>
Although	O
Trespasser	B-Application
was	O
a	O
critical	O
and	O
commercial	O
failure	O
,	O
substantial	O
amateur	O
interest	O
in	O
the	O
game	O
persisted	O
for	O
years	O
,	O
coalescing	O
into	O
online	O
fan	O
communities	O
such	O
as	O
the	O
Trespasser	B-Application
Hacking	O
Society	O
and	O
Trespasser	B-Application
Secrets	O
,	O
both	O
now	O
defunct	O
,	O
and	O
TresCom	O
,	O
which	O
remains	O
active	O
as	O
of	O
May	O
2021	O
.	O
</s>
<s>
Members	O
of	O
these	O
communities	O
developed	O
fan-made	O
software	O
to	O
examine	O
,	O
preview	O
,	O
and	O
eventually	O
edit	O
Trespasser	B-Application
,	O
such	O
as	O
the	O
TresEd	O
level	O
editor	O
.	O
</s>
<s>
For	O
example	O
,	O
Trespasser	B-Application
CE	O
allows	O
players	O
to	O
play	O
the	O
original	O
Trespasser	B-Application
game	O
at	O
higher	O
resolutions	O
and	O
frame	O
rates	O
without	O
experiencing	O
crashes	O
.	O
</s>
<s>
Despite	O
lackluster	O
reviews	O
,	O
Trespasser	B-Application
went	O
on	O
to	O
influence	O
game	O
developers	O
who	O
were	O
interested	O
in	O
the	O
game	O
's	O
ideas	O
and	O
flawed	O
but	O
innovative	O
mechanics	O
.	O
</s>
<s>
The	O
game	O
's	O
unique	O
control	O
scheme	O
inspired	O
at	O
least	O
two	O
indie	O
titles	O
,	O
Surgeon	B-Application
Simulator	I-Application
2013	I-Application
and	O
the	O
original	O
Octodad	B-Application
,	O
whose	O
developers	O
have	O
referred	O
to	O
Trespasser	B-Application
as	O
a	O
source	O
of	O
inspiration	O
.	O
</s>
<s>
Trespasser	B-Application
's	O
outdoor	O
level	O
design	O
also	O
partly	O
inspired	O
the	O
use	O
of	O
outdoor	O
environments	O
in	O
level	O
design	O
for	O
FPS	O
games	O
such	O
as	O
Halo	O
:	O
Combat	O
Evolved	O
and	O
the	O
Far	B-Application
Cry	I-Application
series	O
.	O
</s>
<s>
Id	O
Software	O
cofounder	O
John	O
Carmack	O
also	O
cited	O
Trespasser	B-Application
's	O
use	O
of	O
voiceover	O
narration	O
for	O
storytelling	O
as	O
one	O
inspiration	O
for	O
Doom	B-Application
3	I-Application
eschewing	O
cutscenes	O
in	O
favor	O
of	O
audio	O
logs	O
for	O
its	O
storytelling	O
.	O
</s>
<s>
Despite	O
its	O
failures	O
,	O
Trespasser	B-Application
is	O
generally	O
recognized	O
as	O
the	O
first	O
game	O
to	O
incorporate	O
a	O
full	O
physics	O
engine	O
.	O
</s>
<s>
Gabe	O
Newell	O
cited	O
Trespasser	B-Application
as	O
influential	O
to	O
Half-Life	O
2'''s	O
physics	O
,	O
though	O
its	O
failure	O
caused	O
him	O
and	O
the	O
rest	O
of	O
Valve	O
to	O
worry	O
about	O
the	O
potential	O
for	O
negative	O
comparisons	O
between	O
the	O
two	O
.	O
</s>
<s>
In	O
September	O
2019	O
,	O
Trespasser	B-Application
was	O
spotlighted	O
in	O
the	O
172nd	O
episode	O
of	O
the	O
webseries	O
Angry	O
Video	O
Game	O
Nerd	O
,	O
with	O
Seamus	O
Blackley	O
making	O
a	O
guest	O
appearance	O
to	O
discuss	O
the	O
game	O
's	O
development	O
.	O
</s>
<s>
Around	O
2012	O
,	O
as	O
Steven	O
Spielberg	O
was	O
preparing	O
to	O
revive	O
the	O
Jurassic	B-Application
Park	I-Application
franchise	O
,	O
he	O
contacted	O
Blackley	O
to	O
prepare	O
concepts	O
for	O
a	O
new	O
video	O
game	O
and	O
sequel	O
to	O
Trespasser	B-Application
.	O
</s>
