Legacy of Kain spin-off Nosgoth will be available to play for free on Steam from August 7 for three days.
In order to partake in the free weekend all you need is a Steam account, be over 18 years of age, and be in Europe or North America. The offer expires on August 10 at 8am UK time (3am eastern, Aug 11.)
Those play will receive double XP during the event and an exclusive badge that cannot be unlocked in any other way.
Publisher Square Enix and developer Psyonix has published a detailed FAQ on the game and the event which you can read here.
Described as a competitive, team-based human versus vampire multiplayer game, Nosgoth has gained a cult following due to its ties with the Legacy of Kain series. The game pits two factions against each other in battle, where players must use "each race's unique fighting style to conquer and crush the opposition in a war for supremacy and for survival".
Square Enix has assured fans that although Nosgoth is free-to-play, it is not going to be as consumer-hostile as some fear. George Kelion, a community manager at Square Enix London Studios, insisted in a blog post that Nosgoth was "free-to-play but not pay-to-win".
In May 2012, it was rumoured that Tomb Raider studio Crystal Dynamics was working on a Legacy of Kain: Soul Reaver reboot.