Virtual reality has the promise to take us to places never possible before. Today, you could go on a dinosaur-filled adventure … as long as you have the right equipment.

Time Machine VR has launched today for Oculus Rift and HTC Vive, the two biggest home VR devices for PC. It costs $30. Time Machine VR is a 10 hour adventure that has players traveling back to the Jurassic period. It is one of the most ambitious games made yet for VR. The whole VR market could be worth $30 billion by 2020 for all platforms, advisory firm Digi-Capital forecasts.

Minority Media developed Time Machine VR. The studio previously made the digital game Papa & Yo for PlayStation 3. Time Machine VR features a script from Jill Murray, who also worked on Assassin’s Creed III and Assassin’s Creed IV: Black Flag.

You can read our preview for the game here. You can also watch a new trailer below.