Red Moon is a Z-machine interactive fiction game written with Inform 7 and is © 2008 by Jonathan Hay. It was an entry in IF Comp 2008 where it took 19th place.
In this short one-room game, you play as a young former football player somehow trapped by fear in a wooden hut with your sister. It's frighteningly dark in the hut, save for the red light that shines through holes in the ceiling, hinting at the unimaginable horrors that lurk outside.
This solution is by David Welbourn, and is based on Release 1 of the game.
> x me. i. x sister. x dress.
> listen. x clock.
> x lamp. turn on lamp. (It's lit, but the room remains dark.)
> x shadows. x door. open door.
> x computer. turn on computer. (Nothing. No plug?)
> x manuscript.
> open cupboard. x photograph. take it.
> x holes. x mirror. xyzzy.
What time is it again?
> x clock. g. g. g.
That's... unhelpful. Try looking at your sister several times:
> x sister. g. g. g.
Weird. Your sister's hair and dress color change every time you look. That's really not normal. Examine the mirror several times:
> x mirror. g. g. g. g.
Ugh. But that was a progression. Not random. Now examine the photo many times:
> x photo. g. g. g. g. g. g. g.
Your dad had a snout? You mom had a claw? You had a brother instead of a sister? Why is nothing in this hut stable? This can't be real. You must be asleep. Also, this game loves making you do actions repeatedly. Therefore, try to wake up several times. Eventually, you'll actually do it:
> wake. g. g. g. g. g. g.
*** You have won ***
Oh. OH. Okay, then.
From the author's walkthrough file:
I made this with Inform 7. It was mostly great, gave me some grief at times, but overall was a fun learning experience!
Thanks to my friend and beta-tester, Koh Zi Han, who helped me find quite a few bugs and gave me many suggestions!
 (Ever tried loading the project, then IMMEDIATELY compiling without waiting a few seconds for your source code to appear? That, as I found the hard way, will UTTERLY erase everything you've done. Beware!)
This walkthrough is provided free of charge since the work it's based on has less than fifteen locations. Please consider it a thank you for your support!
I create larger walkthroughs too! Please visit my Patreon account if you're interested in helping me create more interactive fiction walkthroughs. I appreciate all the help I can get! Thanks again.