Short answer
The official listing confirms a 90-room handcrafted campaign and says rooms are ordered by measured completion times, from a warm-up to harder finales. It does not publish an average playtime or a universal room difficulty chart, so those numbers stay open until the launch build is timed.
What is confirmed about the curve.
Mode-by-mode length questions.
| Mode | Known scope | What a useful report must measure |
|---|---|---|
| Campaign | 90 rooms; six-second timer; time crystals. | Clear time, retry count, crystal detours, and the first repeatable route. |
| ESCAPE | 10 long maps; no clock, collectibles, or backtracking. | Map length, half-second shadow pressure, and where a forward commitment becomes irreversible. |
| Arcade | Endless procedural rooms and score chasing. | Seed, score rules, room count per run, and whether the same strategy repeats. |
How to measure a fair completion answer.
- Define the endpoint.Choose campaign clear, all 90 rooms, ESCAPE clear, or a first successful run before starting the timer.
- Record the build.Use the same platform, patch, input method, and save state for every attempt.
- Separate retries from route time.Report both active movement time and the attempts needed to learn the room.
- Repeat the sample.Use several rooms from early, middle, and late sections before calling the difficulty curve representative.
Open length and difficulty data.
There is no official total completion time, median room time, or numbered difficulty tier in the published listing. A player report can point to a hard room, but the site should label it as a lead until the route, build, and repeat are recorded.
Evidence ledger.
Confirmed
What the sources confirm
- The campaign contains 90 handcrafted rooms.
- The listing describes a six-second room timer, instant retries, and a data-tuned room order.
- ESCAPE contains 10 long maps and Arcade is procedurally generated.
Needs a live check
What is not yet verified
- Average campaign completion time and 100% time.
- Room-by-room difficulty tiers and measured clear times.
- ESCAPE map lengths and Arcade run-length rules.
Common mistakes
What to avoid
- Turning the 90-room count into a guessed number of hours.
- Ranking difficulty from one anecdotal death.
- Combining campaign, ESCAPE, and Arcade time into one total.
How many levels are in SIX SECOND SHADOW?
The official listing confirms 90 handcrafted campaign rooms, plus 10 long ESCAPE maps and an endless Arcade mode.
How long does the campaign take to beat?
No official total playtime is published. A useful answer needs a defined endpoint, a named build, and repeated timed runs.
Is SIX SECOND SHADOW difficult?
Steam uses a Difficult tag and the developer describes a measured curve toward harder finales. Exact room tiers still need release-build testing.