Return to Jurassic Park is a mod for the 1998 PC game "Trespasser" set on Isla Nublar several years after the events of the first film. Running on an upgraded Trespasser engine, players will get to explore the abandoned facilities through nine expansive levels covering the entire island, while at the same time searching for weapons and supplies as well as solving challenging puzzles; encounter a wide range of dinosaurs, from the tiny compsognathus to the massive aquatic tylosaurus; and uncover a story unlike any previously presented in a Trespasser mod.
The transport of prehistoric specimens is handled through tranquilization and quick, safe wrangling and containment by Jurassic Park Animal Control staff. The smallest specimens can be transported using specially-designed carrier crates, while the larger animals are typically loaded onto one of InGen's custom-modified reinforced flatbed trucks. In order to avoid disturbing the animals or flow of traffic throughout the Park, transit of dinosuars and other hazardous material is done via the underground tunnel network which criss-crosses the entire island.
Speaking of an underground network, is this something players could venture through?
The tunnels (based on those seen in the Telltale game) will appear in the mod, though to what degree you'll have to wait and see. You can expect at least a small taste of them in RTJP~Helipad, the first level.
Awesome! I can picture raptors barreling down at me in dark, narrow passageways!
Oh, it's not Raptors that you'll be worrying about in the tunnels.