Sker Ritual is free on Epic Games Store: claim it before Oct 29

Sker Ritual is a round-based co-op survival shooter and a spin-off of Maid of Sker, the award-winning British horror game. You hold out against waves of the Quiet Ones, the supernatural enemies from that series. You can play alone or with up to three other players. It normally costs $24.99 on Epic Games Store.

It's a good fit for fans of wave-survival shooters, and for groups of up to four who want a horror game to play together. It's on PC (Windows).

The offer ends on October 29 at 15:00 UTC. If you claim it before then, it stays in your Epic library after the deal ends, so you can download and play it whenever you like.