Screenshots
About this game
Nightmare Puzzles: The Unknown is a portrait-oriented logic puzzle game designed for short, interruptible sessions. Players solve a variety of puzzles, with progression often facilitated by watching ads or making in-app purchases. Some players feel that progression can be slow without these options. It appeals to casual players who enjoy logic challenges and are comfortable with an ad-driven monetization model.
What players say
Themes from 200 recent Google Play reviews, analysed 28 Aug 2026
Praised
Fun & addictive50Ads not intrusive11
Complained about
Too many ads44Bugs & crashes10
Why we tagged it this way
What each behavioural tag is based on
- Short sessionsRuns are self-contained, so stopping early costs you nothing.
- InterruptiblePut it down mid-session and pick it up cold.
- One-handedPlayable with a thumb, in portrait.
- Plays offlineNo connection needed once installed.
- No energy timersNothing caps how long you can play.
- Sound optionalNo audio cue carries information — fine on mute.
- Low focusPlayable while half-distracted.
Commute
Short, interruptible sessions
Flight
Plays fully offline
In bed
Works muted, one-handed
With friends
Solo only, no multiplayer
What it costs
| Download | Free |
| In-app purchases | $1.99 - $9.49 |
| Ads | Yes |
| Energy timers | None |
From the Google Play listing.
Tags
ReplayabilityHigh
StoryLight Story
SocialSolo
DifficultyNormal
GrindMedium
Brain PowerLight
Story depthLight
PriceFreemium-Fair
PauseableHigh
VibeRelaxing
OrientationLikely-Portrait
RatingTeen
DeviceLightweight
Has ending?Endless
MultiplayerSolo-Only
GenrePuzzle Logic
✈️ Offline play👍 One-handed🔇 Mute-friendly⚡ No energy timers👶 Parent-friendly
