a terminal in ultrakill. the terminal displays a gmail screenshot of an email from Garry Newman, developer of gmod. it reads: "Sure - no textures though - they're Valve's. garry" it's the reply to the implied question "Can I recreate gm_construct in my game's engine and use it as the sandbox mode?"
https://pool.jortage.com/glaceonsocial/media_attachments/files/111/960/414/426/591/900/original/fdfca1a0ef2c2bd9.png