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Mosaic of the Strange

Mosaic of the Strange

Mosaic of the Strange is a picross/minesweeper hybrid featuring ENORMOUS interlocking puzzles. Help Special Agents Cullen and Brady investigate a bizarre murder, while discovering 144 real-world paranormal case files.

Released Dec 11, 2025 Developer Mark Ffrench Publisher Divide The Plunder Platforms Windows · Mac IncrementalCasualPuzzleCollectathonPoint & Click
View on Steam ↗ $12.99 (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.

93.0%positive244 reviews
Recommended · 1 found this helpful

“Same minesweeper-style gameplay as the other Mosiac games, but wrapped with lots more storytelling and a giant collection of psuedoscience references. Wiki the clues as you go for anything you don't recognize and you'll be rewarded with some amusing stories. The multi-colored…”

— a player, Steam review · 31 hrs played
Recommended · 1 found this helpful

“murder mystery framing is a ton of fun (though it's completely on the rails/there's no player input on that end) and was just what this line of Mosaic puzzle games needed to freshen up a bit after i had started to reach a point of fatigue after hammering out the rest over the…”

— a player, Steam review · 20 hrs played
Recommended · 0 found this helpful

“Having played most of the series so far, I found the implementation of a story and map to traverse around quite satisfying! It was nice to depart from the larger puzzles for this game and take on the puzzles in bite-size pieces. The music was great, with a genuine eeriness to…”

— a player, Steam review · 27 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. History through 2026-08 via SteamCharts; self-collected from the Steam API since Aug 2026.

182all-time peak
0 50 100 2026 92 avg · Dec 2025

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

100achievements
54.4%median completion
46.7%rarest: Declassified
96.1% of players 86.5% of players 85.4% of players 83.0% of players 82.6% of players 82.5% of players 81.9% of players 81.0% of players 80.8% of players 78.3% of players 76.5% of players 74.9% of players 74.8% of players 74.3% of players 73.5% of players 73.4% of players 73.4% of players 72.7% of players 69.6% of players 67.9% of players 67.6% of players 66.6% of players 66.4% of players 66.1% of players 65.8% of players 65.4% of players 65.3% of players 64.8% of players 64.4% of players 64.0% of players 63.9% of players 63.4% of players 62.9% of players 62.7% of players 61.5% of players 61.4% of players 61.0% of players 60.6% of players 60.3% of players 59.8% of players 59.8% of players 59.5% of players 59.4% of players 56.5% of players 56.5% of players 56.4% of players 56.3% of players 55.8% of players 55.7% of players 55.6% of players 54.4% of players 54.4% of players 54.2% of players 54.2% of players 54.2% of players 54.1% of players 54.1% of players 53.9% of players 53.7% of players 53.6% of players 96.1% 0% most earned rarest
Almost everyone has
96.1%Homicide Report — Hidden achievement
86.5%Scratching the Surface — Solve region 34 in the watch tower
85.4%Afterburn — Solve region 30 in the watch tower
Rarest badges of honor
46.7%Declassified — Hidden achievement
46.9%The Truth is Out There — Hidden achievement
47.2%The Whole Picture — Hidden achievement

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Apr 13, 2026
Update 1.1.04133

This update fixes a few bugs: Fixed several achievements that were not firing after completing each scene Fixed an issue with global completion progress going over 100% Fixed VSync setting not persist

Apr 07, 2026
Update 1.1.04071

This update fixes a couple of issues introduced in the last update Disabled gamepad vibration when playing with keyboard and mouse Fixed achievements not firing until the game was restarted Performanc

Apr 02, 2026
Update 1.1.03313

What's New This major update implements some of the most-requested fixes for the game: Newly-sourced, professional translations for all cutscenes, for the case board and parts of the UI. Added full ga

Feb 05, 2026
Hotfix 1.1.02050

This update fixes a bug introduced in the last update, which caused the current region progress count to get stuck on 0%.

Feb 04, 2026
Update 1.1.02040 - Drawing Mode Improvements!

This update makes some significant improvements to the drawing mode: Fixed performance hitches when opening and closing the panel. Notes now stay visible when the panel is closed. Added keyboard short

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-26.

GenresAdventure, Casual
Player tagsIncremental · Casual · Puzzle · Collectathon · Point & Click · Adventure · 2D · Pixel Graphics · Open World · Mystery · Aliens · Singleplayer (Steam store community voting)
FeaturesSingle-player · Steam Achievements · Camera Comfort · Custom Volume Controls · Adjustable Difficulty · Mouse Only Option · Playable without Timed Input · Save Anytime
LanguagesEnglish, French, Italian, German, Spanish - Spain, Dutch, Japanese, Russian, Simplified Chinese, Traditional Chinese, Korean, Polish, Portuguese - Brazil, Turkish
Achievements100
Official sitehttps://markffrench.com
Minimum system requirements (PC)

Minimum: OS: Windows 10 Processor: 2.0GHZ Dual Core Processor Memory: 4 GB RAM Graphics: Intel Graphics 4400 or better Storage: 1 GB available space