Conan Exiles dev kit has been released free on Epic Games store.
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Thanks Farflame!Update:
From the looks of it, this is only the dev kit for Conan Exiles. Both Epic and Funcom did not clarify on the store page whether this was only the Unreal Engine 4 dev kit or not (which is a bit misleading if you ask us). After downloading it, we can confirm that it's only the dev kit.
More information.