Questerium: Sinister Trinity HD Collector's Edition

Adventure· Casual· Puzzle· Hidden Object

Released Jan 2015

Financed by the banker, the professor builds an evil machine that causes the meteor’s energy to spin out of control, destroying the city and mutating its plants and animals. Citizens are evacuated, but rescuers fail to find and evacuate two children.

82% positive · 236 reviews

Done

All announced content has been released

High confidence

Done

All announced content has been released

High confidence

Where to buy

Steam Updated 12 Oct 2026 $6.99

Can't confirm — worth a look

We couldn't confirm these stores carry this game.

Green Man Gaming Steam key Search IndieGala Steam key Search

Prices in USD, as listed by each store.

Buying through an affiliate store helps support the site

Evaluation

Questerium: Sinister Trinity HD Collector's Edition is a casual hidden-object adventure game that released on January 15, 2015. The store description presents it as a self-contained story — an investigator hired to destroy an evil machine, rescue two children, and save a city — with a fixed feature set including 20 secrets, achievements, puzzles, and mini-games. There is no indication of post-launch content, DLC, expansions, or ongoing development. The one developer news post on file is entirely unrelated to this game — it announces the 1.0 launch of a different game (REMEDIUM: Sentinels) from the same developer network, and carries no information about Questerium. No DLC is listed for the game. This is a complete, standalone product that launched as a finished package over a decade ago.

Evidence

Store description presents a fully self-contained story with a fixed feature list: 20 secrets, achievements, garden development, puzzles, mini-games, and real-life actors. No mention of updates, DLC, or ongoing content.

description · Jan 15, 2015 source development ending

high

The only developer news post is for an entirely different game (REMEDIUM: Sentinels) and contains no information about Questerium: Sinister Trinity HD.

news post · Jul 18, 2023 source ambiguous

low

Media

Details

Developer

URSE Games

Publisher

ESDigital Games

Achievements

Platform

Windows, macOS

Controller

—

Steam Deck

Not rated

Players

Single-player

Adventure Casual Hidden Object Puzzle Point & Click Mystery Indie Atmospheric

About this game

Three men, friends since childhood, perform important roles in their communities: professor, mayor, banker… But when a meteor falls not too far from the city, Professor Gustav learns that the meteorite is emanating some sort of unknown energy, and begins a series of experiments without the mayor’s permission. Financed by the banker, the professor builds an evil machine that causes the meteor’s energy to spin out of control, destroying the city and mutating its plants and animals. Citizens are evacuated, but rescuers fail to find and evacuate two children. In Questerium: Sinister Trinity HD, you play the investigator hired to work the case, and it’s up to you to destroy the evil machine, rescue the abandoned children, save the city and arrest the professor!