The White Mesa Initiative: Portal x HL

ᴡᴇʟᴄᴏᴍᴇ ᴛᴏ ᴛʜᴇ ᴡʜɪᴛᴇ ᴍᴇꜱᴀ ɪɴɪᴛɪᴀᴛɪᴠᴇ, ᴀɴ ʀᴘ ꜰᴏʀ ʙᴏᴛʜ ʜᴀʟꜰ-ʟɪꜰᴇ ᴀɴᴅ ᴘᴏʀᴛᴀʟ ꜰᴀɴꜱ ᴀʟɪᴋᴇ. [ʀᴇᴠᴀᴍᴘᴇᴅ!]