The Sinking City 2 Investigation Space

What it replaced

The Sinking City 2 Investigation Space replaced something bigger. The 2019 original was an open-world detective game: you gathered evidence, cross-referenced archives and drew conclusions, and that was the loop. The sequel is a survival horror, and the detective work has been compressed into a system that sits alongside the shooting rather than instead of it.

The genius of this detective mechanic — and the trap in it — is that the compressed version is now your progression. Ignore it and you are not skipping flavour, you are skipping levels.

How connections work

1. Collect clues as you explore. Documents, evidence, objects, and information that arrives through spectral replays.
2. Open the Investigation Space and look at what you are holding.
3. Link related clues. The pay-out is for correct connections, so read rather than click.
4. Collect the reward — Talent Points and Dream Essence.
5. Spend it at the Talent Table in a safe room, from the third one onward.

Optional investigations

Alongside the main thread, each chapter carries optional investigations — side cases that resolve inside the same district. Frogwares confirms these pay Dream Essence directly.

They are the single densest source of talent currency in the game and they are entirely skippable, which is the most consequential "optional" in the design. If your run feels under-powered in the back half, this is almost always why.

Getting connections wrong

Only correct deductions pay. That makes the Investigation Space a place to slow down — the currency is in the reading, not the clicking. If a link does not resolve, you are usually missing a clue rather than mis-reading the two you have.

When that happens, the fix is the same as everywhere else in this game: go back and search the room you skipped.

The connection to everything else

Reading the board efficiently

Two habits make this faster. First, open the board after clearing a room rather than during it — clues arrive in clusters, and connections are easier to see with the whole cluster in hand. Second, read the clue titles before the bodies; most correct pairs are obvious from the headings, and the detail is there for the ones that are not.

If a clue seems to relate to nothing, that is usually the game telling you a second document exists in a room you have not searched yet.

If the Investigation Space feels like busywork

It is a fair reaction on a first pass, and there is a practical reframing that helps: treat it as the shop. This is a game with no vendors and no experience points. The Investigation Space is where you buy things, and the price is attention.

Ten minutes of reading per chapter is roughly what separates a comfortable back half from a punishing one.