Loading…
Solve the case, face twisted monsters, and pray you make it out alive.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Summer, 1995.
You receive a call from the Polly’s Ville Police Department. An electrical engineer, John Plier, just 18 years old, has been found dead in the decaying station of Ghillies Subway. What begins as a simple investigation soon spirals into something much darker...
Explore the subway, and the twisted realm of a psycho killer in Polly's Hospital.
And lookout, as there's a monster waiting for you....
This game is no longer receiving support and will not be updated.
Lowest tracked price: CA$1.19 (Jul 7, 2026) · current best: CA$1.19.
75% positive reviews all-time.
Right now the cheapest offer for Investigation is CA$1.19 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Investigation is CA$1.19 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Investigation drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
