Pattern is available HERE.

I won’t apologize for trotting out Portal again. I think it’s the best! I stumbled on Portal by accident when my ex bought the Orange Box for Half-Life 2. I was perusing the games and hadn’t heard of Portal when I started playing it. At first, I thought the game was weird, but then it sucked me in and I just couldn’t walk away. I skipped class and called out of work and played it through in one sitting. I think I played it three or four times in one month, trying to find the most efficient and “perfect” ways to get through each puzzle.

Note that this pattern includes both knitting and crochet instructions. The needle/hook size given above is for the specific craft.