A game called Daymare 1998: is free to own forever from the GOG store.
As long as you claim your copy before 2nd January at 14:00 UTC.
DAYMARE: 1998 is a third-person survival horror with hardcore survival mechanics and hard to kill enemies. It requires a strategical approach to combat and puzzles and offers a multi-character point of view on the story, revealing a deep and obscure lore.
The scene is set with a secret research facility, a deadly chemical weapon and a special security team to investigate this incident with the potential to become much more than just a security breach.