Patch 2025.9.9.0.4 is now available!

Patch 2025.9.9.0.4 is now available on the Evolution Public Branch.

• The tyrannosaurus rex adult has 5 new call sounds. Press the 1 key for an idle call. Press the 2 key for a friendly call. Press the 3 key for a call for help. Press the 4 key for an aggressive call. Press the 5 key for a distant call.

• Fixed a preferred foods randomization glitch for piscivores.

• A dinosaur's maximum amount of gastroliths is now halved if the dinosaur has a "lean" body type. Bulky body types still have the same maximum gastroliths. So a lean dinosaur can require between 5 and 120 gastroliths depending on their growth stage and size category.

• A dinosaur gets fuller faster while eating with higher amounts of gastroliths in their stomach. Up to 5x fuller per bite.

• A dinosaur gets hungrier faster with higher amounts of gastroliths in their stomach. Up to 6x faster. Older dinosaurs don't get as hungry from this penalty.

• A dinosaur only grows from eating if they are hungry.

• The Guide page on Growth has been updated.

• A new Guide page on the Preferred Foods system has been added.

• Almost all dinosaur species can now play their movement and call animations at the same time.

• Almost all aquatic species can now play their movement and attack animations at the same time.

• The styracosaurus, oviraptor, dimorphodon, and troodon can now play their movement and attack animations at the same time.