Features41,566 words4 Endings9 Character CG55+ illust CGs35+ Original BGs11+ BGMs12 SFXsStoryOne 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 [Nightmare Game].After inference of collected hints, they can end this game.the [Broadcast] will tell about where Hints are, and friends' death.they were programmed to bring them to death.is the [Broadcast] 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 NotesYou can change the language in Settings.If you can not hear the game sound, increase the volume in the settings