I'll probably have more keys to share in the near future. Access to the game does however not expire in the next 18 hours. This batch of keys will expire in around 18 hours. I'll edit and bump the thread whenever I have more keys. You can read about the game, their dev blog and more here: ĮDIT: Looks like they all got taken pretty quick. It was originally meant to be an Unreal Engine-successor to Garry's Mod, but later in development they switched to Source 2. Here's a bunch of keys for the dev preview of Facepunch's in-development successor to Garry's Mod, called 's&box'.