Torn Banner Studios’ first-person combat game Chivalry: Medieval Warfare is currently available for free for via Steam. That promotion — intended to drum up interest in the sequel, Mirage: Arcane Warfare — is only available today.

Chivalry: Medieval Warfare is available to download for Linux, Mac, SteamOS and Windows PC, and if Steam users download it during the free period, it will remain in their library.

Those who download (or already own) Chivalry: Medieval Warfare will get a 10 percent discount on pre-orders of Mirage: Arcane Warfare.

Mirage: Arcane Warfare is currently in beta and costs $29.99. Those who pre-order the game will get access to the beta, which will be playable until Arcane Warfare’s release on May 23.

Check out gameplay from Mirage: Arcane Warfare in the video below.