Nanosaur is a science fiction third-person shooter video game developed by Pangea Software and published by Ideas From the Deep for Mac OS 9 and Microsoft Windows.
The Nanosaur arrives in a lush jungle, with twenty minutes given to collect the eggs before the meteor that caused the initial extinction of the dinosaur race hits the Earth.
The object of the game is to collect the eggs of five dinosaur and flying reptile species and deposit them in time portals to the future in twenty minutes; at the end of the countdown, the asteroid that caused the Cretaceous–Paleogene extinction event hits Earth.
The native animals will attack the Nanosaur when their eggs are threatened; species encountered include Tyrannosaurus rex, Stegosaurus, Triceratops, Dilophosaurus (which spits venom as in Jurassic Park), and the flying reptile Pteranodon.
As well as hostile creatures, the Nanosaur must also avoid environmental hazards which slow the player down or inflict damage - such as water, lava, tumbling boulders, and spores from poisonous fungi.
[3] In 2021 an open source version of the game utilizing OpenGL was ported to modern systems (Windows, Mac, and Linux) with the developer's blessing by Iliyas Jorio.