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Trespasser
Jurassic ParkWindows 95/98AdventureShooter

Trespasser

Developer: Dreamworks Interactive · Published by Dreamworks Interactive · 1998
The most ambitious failure of a generation, and a tech demo that forgot to be a game.
VoodooDirectX 6PhysicsCD-ROM
2.5
Average
POCG VERDICT
The biggest letdown of the year, and a frustrating tech demo that forgot to be a game.
Trespasser promised a Jurassic Park experience with revolutionary physics. What we got was a boring, repetitive mess with a rubber-limbed arm and dinosaur AI that makes chickens look smart.
About This Game

Trespasser is a 1998 first-person shooter/adventure game developed and published by Dreamworks Interactive, set in the Jurassic Park universe. The game takes place on Isla Sorna (Site B), the same island from The Lost World: Jurassic Park, and casts the player as Anne, a plane crash survivor who must find a way to escape the dinosaur-infested island.

Trespasser was ambitious, touting a groundbreaking physics engine that allowed objects to be manipulated with realistic weight and inertia. Players controlled a single hand, Anne's right arm, using a complex system of key combinations to rotate, extend, and grip objects. The arm could be used to pick up and throw items, stack crates to reach higher areas, and aim a variety of firearms against hostile dinosaurs.

The game featured large outdoor environments rendered with a then-advanced combination of high-detail close-up objects and lower-resolution distant scenery. Dinosaurs were fully animated and reacted to the player's presence, with species ranging from small compsognathus to the enormous Tyrannosaurus rex. The T. rex in particular was a centerpiece, designed to be a persistent, nearly unstoppable threat that could track the player across the island.

Upon release, Trespasser received mixed to negative reviews. Critics praised the dinosaur animation and sound design but heavily criticized the interface, the repetitive crate-stacking puzzles, the poor artificial intelligence, and the game's linear level design. The ambitious physics engine, while impressive in small interactions, was seen as limited in scope and frustrating to control. The game was also notorious for its steep system requirements and performance issues.

Despite its commercial and critical failure, Trespasser is remembered today as a fascinating failure that tried to push boundaries. Its physics-based gameplay foreshadowed later immersive sims and physics sandboxes, earning it a cult following among retro gaming enthusiasts.

Screenshots8 shots
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POCG ReviewOriginal: October 12, 1999 · Restored: June 14, 2026
2.5
Average
Review Verdict
Private: Trespasser
Trespasser promised a Jurassic Park experience with revolutionary physics. What we got was a boring, repetitive mess with a rubber-limbed arm and dinosaur AI that makes chickens look smart.
In the News3 mentions
Nov 31998
Trespasser Demo Released
Dreamworks Interactive has released the demo for Trespasser. Trespasser is the evolution of 3D first-person gaming. It features real-world outdoor environments, combined with detailed interiors.
Release
Oct 171998
Trespasser is Gold
DreamWorks Interactive has said that Trespasser has Gone Gold. Trespasser, the 3D action game based on the blockbuster movie, The Lost World, is expected to be hitting store shelves by October 28th.
Release
Sep 91998
Trespasser interview posted
Avault posted Trespasser Interview, with Trespasser Project Leader Seamus Blackley. Trespasser is being developed by Dreamworks.
Release
How to Play TodayYour options for running this game in 2026
Original Hardware
Original CD-ROM copies are easy to find on eBay for around $10-20. Requires a period Windows 95/98 PC with a Pentium 166 MHz or better, 32MB RAM, and a 3D accelerator card for smoother performance.
Modern Re-release
Available on GOG.com for $9.99, pre-configured for modern Windows with widescreen and minor fixes. Includes the original manual.
Emulation / Other Options
Runs best in a Windows 98 virtual machine, or apply a DirectX wrapper like dgVoodoo on modern systems. Expect physics quirks without tinkering.
Game Info
PlatformWindows 95/98
ReleasedOctober 28, 1998
DeveloperDreamworks Interactive
PublisherDreamworks Interactive
GenreAdventure, Shooter
Players1 Player
SeriesJurassic Park
ReviewedOctober 12, 1999
RestoredJune 14, 2026
Jurassic Park Series
Trespasser (1998)
Windows 95/98
Not Reviewed
This
Jurassic Park: The Game (2011)
PC / PS3 / Xbox 360
Not Reviewed
Original PC Specs
OSWindows 95/98 with DirectX 6.0
CPUPentium 166 MHz (Pentium II 266 MHz recommended)
RAM32 MB
GPU / Display1 MB video card (3D accelerator recommended)
Storage120 MB free hard drive space
Drive4x CD-ROM