Big Bad Wolf Studio has published the system requirements for the horror title Cthulhu: The Cosmic Abyss, which is being made in Unreal Engine 5.
If you only want to survive the opening hours, the minimum asks for 12 GB RAM and a GPU comparable to a GTX 1060 or RX 590. The studio lists CPUs like the Intel Core i7-8700K or AMD Ryzen 5 1600X, and about 16 GB of storage is needed.
For smoother play on the recommended preset, plan on an RTX 3070 or RX 6750 XT GPU alongside a more modern CPU — examples given are the Intel Core i5-12600K and the AMD Ryzen 5 7600. RAM should be 16 GB (yes, 16 GB), so factor that into any upgrade plans.