The Collection currently† introduces 7 new uniquely modelled and animated creatures to ARK: Survival Evolved, each with a unique taming encounter that those among you who have enjoyed the experience of taming a Tusoteuthis are already well-trained for!
Want more? There's also the standalone Domination Rex mod that introduces its namesake, inspired by but legally distinct to the Indominus rex of Jurassic Park fame.
As of October 30th, 2021, The Collection now features its first unique boss - the Savage Acrocanthosaurus. This boss is summoned into the overworld from your inventory using a dedicated engram, which requires tribute in the same manner as the traditional Island bosses or the Extinction titans. Do you think you're ready, survivor?
The Deinonychus was removed from the mod due to conflicts with the Deinonychus on Valguero.
The Cockatrice and Ignisaurus were previously listed under future content but are no longer being considered.
The Amargasaurus was previously in development but was scrapped after Wild Card announced their official release.
The Andrewsarchus was previously on the list of sponsorable creatures but was scrapped after Wild Card's official announcement.
The Titanoceratops was planned to be added to the list of sponsorable creatures, but has been placed on hiatus pending whether or not it wins the November 2021 new content poll. With Desmodus winning the vote, the Titanoceratops became a sponsorable creature.
October 2021's update to The Collection's workshop logo featured the addition of the yet-to-be-released Garugopteryx.