Get a T. rex sized bundle of Jurassic Park sims on PC for just $20

Listen, if you think you can do better than Richard Attenborough, be my guest, but run a theme park full of unruly guests And disobedient ten-ton reptiles is harder than it looks. Don’t you believe me? Try managing your own Jurassic Park with Humble’s $20 bundle that includes both Evolution of the Jurassic world and its sequel, in addition to an extensive collection of DLC for each game. The sale lasts until October 18th.

The games in the Jurassic World Evolution franchise are park management simulators along the lines of Planet Zoo or Planet roller coasteronly with the obvious addition of dinosaurs and the dangers that come with trying to control them. You’re responsible not only for the well-being of your reptilian tenants, but also for making a profit by ultimately keeping your guests happy and, well, alive. However, other forces in the form of natural disasters and disgruntled employees will occasionally derail your efforts.

Both games feature the voice talents of the original Jurassic Park‘s leading cast, including Sam Neill, Laura Dern, BD Wong and Jeff Goldblum. The DLC packs introduce new dinosaur species into the mix, plus new scenarios and cosmetic options.

Humble always sends a portion of every bundle sale to a nonprofit. In this case, your purchase supports both Girls who code and the Scholarship fund for girls making gamesa few organizations working to close the gender gap in programming, game development, and other STEM-related fields. Remember, you can always use the ‘Adjust donation’ drop-down menu to fine-tune how much goes to the publisher, charity or Humble.