Cell To Singularity: Mesozoic Valley

Cell to Singularity: Mesozoic Valley is an idle simulation game where players unlock dinosaurs, earn fossil points, and finish missions to move forward. Everything happens in cycles—you start small, collect resources, and gradually build toward more complex creatures.

To begin, players buy their first dinosaur, the Archosaur, and start a Fossil Cycle, which produces fossil points. These points are used to unlock more dinosaurs like Ornithischia and to expand your collection. Missions show up on the right side of the screen, and finishing them rewards you with Geodes. Breaking a Geode gives you trait cards that can automate fossil production, plus extras like Mutagen for permanent upgrades and Darwinium Cubes for boosts.

Progress doesn’t stop there. Once all missions in a run are finished, an asteroid icon triggers an extinction event. This resets dinosaurs but lets you keep upgrades, so every new run becomes faster and helps unlock even more creatures. Repeating simulations is how players eventually fill out their entire dinosaur tree.

The game also hides small bonuses, like golden pterosaurs or crystals on screen. Tapping them gives extra fossil points. All of this can be done quickly and for free on kbhgames.com, right in the browser with no installation required.

While it looks simple at first, the loop of collecting points, upgrading traits, and restarting with extinction is what keeps players moving toward unlocking every dinosaur in the valley.