Walkthrough
Location-by-location ASPIS walkthrough covering the prologue, Institute of Cybernetics, KGB building, tunnels, Red World, Lukomorye and the final choice.
Introduction
ASPIS is structured as a journey through places rather than numbered chapters. Official material names a prologue, the Institute of Cybernetics, the KGB building, the tunnels, the Red World and the island at Lukomorye, but it never publishes a chapter count or an official act structure. This walkthrough therefore follows location names and the systems you meet there: what the room expects, which item or layer change opens the route, and where players most often report being stuck. The final choice is handled separately because it resolves the story and feeds both ending achievements. Treat the order below as a practical route, not a developer-confirmed table of contents.
Location Route at a Glance
| Location | What happens | Mechanic focus | Main risk |
|---|---|---|---|
| Prologue | Briefing and first controlled environment | Movement, interaction, reading | Rushing past the control and brightness setup |
| Institute of Cybernetics | Abandoned labs, records, OGAS terminals | Documents and terminal context | Missing the six-volunteer explanation |
| KGB building | Combination lock and office spaces | Timed puzzle and search | Touching the lock before searching |
| Tunnels | Underground route and Kotov search | Navigation and sightlines | Losing orientation between junctions |
| The Red World | Red corridor and Devil sequence | Chase pressure and layer changes | Spending ammo on the wrong enemy |
| Island at Lukomorye | Slavic-mythology branch | Exploration and optional reading | Assuming the game explains the myth layer |
| Final choice | Single decision resolving the story | Ending branch | Expecting a third option |
Location Route
Prologue
Briefing and first controlled environment
Institute of Cybernetics
Abandoned laboratories and records
KGB Building
Combination lock and offices
Tunnels
Underground route and Kotov search
The Red World
Red corridor and the Devil sequence
The Island at Lukomorye
Slavic-mythology branch
The Final Choice
One decision, two outcomes
Core Mechanics
Progression in ASPIS is driven by access rather than keys alone. A route opens when three things line up: you are in the right layer of reality, the object you need has been moved with the PEP-01, and the machinery that controls the door or lift has enough Energy X. The game rarely states the order explicitly, so the reliable loop is to scan for unreachable geometry, look for an astral window, and check whether a terminal or mechanism is unpowered. Documents and recordings supply context but do not always gate progress. When a room appears unsolvable, step back and ask which layer you are standing in before assuming you missed a hidden key.
Advantages
A location-first walkthrough matches how the game actually communicates. Because official material does not publish chapter numbers, inventing a table of contents would create false structure and make cross-referencing impossible. Naming locations instead lets you match the guide to the room names, terminals and achievement text you already see in the game. It also makes spoiler control easier: you can read the prologue and Institute sections for orientation, then stop before the Red World or the final choice if you want to preserve the ending. Finally, the route can flag systemic blockers, such as an unpowered mechanism or a missing layer shift, instead of treating every obstacle as a unique puzzle.
Challenges
The weakness is granularity. Official sources do not describe room-by-room layouts, enemy counts or checkpoint placement, so a walkthrough cannot honestly promise a step number for every corridor. Parts of the route also depend on systems that changed during development, such as the OGAS terminal interface and the X-sphere capture input. Player reports about the first Guardian chase and the KGB timed lock are useful but not developer-confirmed. We therefore describe the mechanic that opens a route and the mistake that usually blocks it, rather than claiming a single exact sequence that may not survive the next patch. A reader who wants a strict step-by-step route should therefore use the location table as a checklist and verify each mechanic in the current build, rather than expecting a fixed script that survives every patch.
Frequently Asked Questions
How many chapters does ASPIS have?+
Where do players get stuck most often?+
Can I miss the Lukomorye branch?+
Quick Tips
Treat every new room as a three-part check before you move on: can I see something I cannot reach, is there an astral window, and is a mechanism unpowered. If the answer to any is yes, the route is probably a PEP-01 or Energy X problem rather than a missing key. Doing this check consistently prevents the most common backtracking loop in the Institute.
In the KGB building, search the surrounding offices before touching the combination lock. One achievement asks for the lock to be solved within ninety seconds, and that clock is much easier to beat when you already know the number and the interaction point. If you trigger the timer by accident, finish the attempt and plan a reload rather than rushing blind.
When a chase starts, stop trying to win it. The Guardian cannot simply be shot, ammunition is scarce, and the design is about doors, corners and distance. Keep moving until the encounter behaviour changes, then hide only when the pursuit has actually broken; players report being found inside hiding spots when they stop too early.
Featured
ASPIS All Episodes: Structure Without Official Counts
ASPIS all episodes are confirmed as a structure, but official sources publish no count or names. See what can and cannot be stated.
ASPIS Astral Window: Layers of Reality Explained
An ASPIS astral window opens between layers of reality. Learn the documented PEP-01 loop for seeing and retrieving objects from another layer.
ASPIS Episode 1: What Official Material Confirms
ASPIS Episode 1 is not officially numbered or named. See what the store page and demo announcements say about the opening episode structure.
All Articles
ASPIS Final Choice: One Decision, Two Endings
The ASPIS final choice is a single late-game decision that leads to one of two endings. See what official material confirms about each branch.
ASPIS Find Kotov: The Tunnels Achievement Objective
Find Kotov in ASPIS using the only official clue: achievement text places Evgeny Kotov in the tunnels. No map or exact route is published.
ASPIS Full Walkthrough: Official Locations and Route
Follow the ASPIS full walkthrough through the Institute of Cybernetics, the KGB building, the tunnels, and the official story locations.
ASPIS KGB Combination Lock: The 90-Second Achievement
The ASPIS KGB combination lock appears in official achievement text, which asks for a solve within 90 seconds. No code answer is published.
ASPIS Lukomorye: The Island in Official Captions
ASPIS Lukomorye appears in an official gallery caption as the island at Lukomorye. See what that confirms and what remains unexplained.
ASPIS OGAS Terminal Guide: Interface and Records
Use the ASPIS OGAS terminal guide to understand the documented terminal network, the OGAS 2.0 rework and how records carry the story.
ASPIS All Collectibles: Documents and Records
There is no official ASPIS all collectibles total. Learn how documents and records work as story items and why no count should be assumed.