A DLC / Add-On called Realm Royale Reforged Epic Launch Bundle is free for a short time.
As long as you claim your copy of the bundle before 15:00 UTC on the 15th September.
The Add-On is for a free-to-play game called Realm Royale Reforged.
Realm Royale is Bok with Realm Royale Reforged! Dive back in with this free Epic Games exclusive bundle for a limited time! The Epic Launch Bundle instantly unlocks the Death’s Edge Assassin Skin, Bokserker Chicken Skin and the Nogard Mount!