After Prometheus and Alien: Covenant were met with less-than-stellar responses from Alien fans and critics, Alien: Romulus tries to take the franchise back to its roots. Along the way, it takes a look back at basically every other major piece of media in the Alien series, calling back iconic lines and mirroring memorable scenes and images. It spends a lot of time showing how much the original films, Alien and Aliens, influenced it, but it’s drawing from everywhere–including Alien: Isolation, the phenomenal 2014 video game.

The references in Romulus range from overt to subtle, and include a few that even a dedicated Alien fan might miss. Here are all the homages, callbacks, Easter eggs and references we caught–let us know if you spotted anything else in the comments below.

Warning: This gallery is full of spoilers!