Summer Nightmare

Summer Nightmare (2017)

Team Summer Nightmare · December 6, 2017 · Free to Play, Visual Novel, Anime, Horror, Gore

Summer Nightmare is free to play — no purchase needed. We track it so you know if that ever changes.

PC
Mixed56% · 552
This game is free to play. Get it on Steam →

Screenshots

Summer Nightmare price

Summer Nightmare is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About Summer Nightmare

✦ AI summary

Unravel a twisted nightmare where deaths in your dreams become reality as you gather clues to break a deadly curse before your friends and classmates are killed. This mystery survival adventure forces you to deduce the truth behind a supernatural game while protecting those around you from a blood-soaked medusa and the horrors it spawns across four branching endings.

Features


  • 41,566 words
  • 4 Endings
  • 9 Character CG
  • 55+ illust CGs
  • 35+ Original BGs
  • 11+ BGMs
  • 12 SFXs

Story



One day, a boy, Riel, has a nightmare. inside the dream there is a school just like in real where terrifying things continues to happen.
Being chased by a blood-soaked medusa, his friends are killed.
Students foam teams just to fight each other.
...this was a beginning of \.

After inference of collected hints, they can end this game.
the \ will tell about where Hints are, and friends' death.
they were programmed to bring them to death.

is the \ from my mind? and what happened in dreams is connected to reality.
when someone dies in my dream- so do in reality. can Riel finish the game?

Summer Nightmare is a Mystery Survival adventure in dreams, surrounding Riel.
Protect friends, teacher and yourself!

『Those who happen to behold Medusa, are destined to be killed by someone.』

Gameplay Notes


  • You can change the language in Settings.
  • If you can not hear the game sound, increase the volume in the settings

Summer Nightmare — game info

Platforms
Windows, macOS, Linux / SteamOS
Player modes
Single-player
PC Game Pass
Not included
More games like this:Mac gamesLinux games

DLC & expansions

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Sep 8, 2026
I didn't expect this game to hook me this much. It's a short horror visual novel, but it does a really good job of creating a creepy and unsettling atmosphere. The visual style is a huge plus - it looks unique and gets genuinely disturbing once things start going off the rails. There's also a fair amount of gore, so fans of bloody scenes and horror stuff won't be disappointed. Some moments genuinely made me sit there and think, "What the hell is going on?". The story pulled me in pretty quickly, and I wanted to see how everything would end. The game isn't very long, but it has multiple endings, so it's worth replaying to see different outcomes. Overall, if you're looking for a short horror experience with a dark atmosphere, weird story, and some blood and gore, this one is definitely worth checking out. I enjoyed it <3
Recommended Aug 11, 2026
🩸 ★★★
Recommended Jul 27, 2026
Summer Nightmare is an interesting free horror visual novel that feels like a mix between an anime mystery story and a survival game. The idea is simple but has some potential. You play as Riel, a boy who finds himself trapped in a nightmare version of a school where strange and violent events start happening. The main mystery is figuring out what is real, what is part of the dream, and how to escape. The strongest part of Summer Nightmare is the atmosphere. The game does a decent job creating a feeling that something is wrong, especially with the dream setting and the constant threat around the characters. The idea that deaths in the nightmare could affect reality gives the story a reason to keep going and makes you want to find out what is actually happening. For a free visual novel, there is also a surprising amount of content. The game includes multiple endings, lots of character artwork, background images, and a fairly long script compared to many small free projects. Having different endings gives you a reason to replay and see what changes depending on your choices. The mystery side is probably the best reason to play. There are hints to discover and parts of the story th…
Not recommended Jul 2, 2026
I hate giving thumbs down, and I wish there was a "mixed up feelings" button, because this is how I feel about this one. It's a nice, quick, and visually appealing VN. However the story/writing is lacking. If choices mattered more and the whole thing was polished, it could be way better
Not recommended Apr 14, 2026
Review after 100% ♡♡♡ Bad english translation. "Don't waste your life, I did. Go home," -John Rambo ⣴⣿⣦⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⣼⣿⣿⣿⣷⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⣼⣿⣿⣿⣿⣿⣿⣿⣦⣄⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣶⣤⣤⣶⣶⣿⣿⡗ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠟⠀ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠃ ⣿⣿⡇⠜⠙⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠀⠀Got a cat here ⣿⣿⣿⣶⣿⣿⣿⣿⣿⠋⡹⠙⣿⣿⣿⡇⠀ Friends passing ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣶⣾⣿⣿⠛⠀⠀by can touch her ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡟⠛⠁⠀⠀and click Like to pet ♡ ⣿⣿⡿⠻⠿⠿⠿⠿⠛⠹⠑⠀⠀ Award for good luck, Take My Points for infinite pets ♡ ⠟⠁⠀
Not recommended Feb 24, 2026
This game felt weirdly rushed and written but a very young teenager or young adult. The story was all over the place and at times I didnt even register why we were making the choices that we were as the characters. It was a mess. I didnt even try this game for the gameplay but the easy 100% but I was disappointed either way. only buy the game if you want the 100%

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