Official estimate: expect roughly 30 to 40 hours for the main story.
Why the estimate is a range
The developer does not promise a fixed completion time. The official Q&A says the result depends on difficulty and your experience with tactics games.
That makes practical sense: a player who already reads cover, threat ranges, and turn economy quickly will usually spend less time reconsidering each move. A player learning those systems may take longer without doing anything wrong.
What can change your own run
- Difficulty: tougher encounters can require more cautious turns and repeat attempts.
- Tactics familiarity: experience shortens the time needed to evaluate positioning and ability combinations.
- Company management: exploring the Den, comparing recruits, and reviewing Operations adds useful campaign time outside combat.
- Play style: careful turn planning is naturally slower than committing to the first workable move.
What the estimate does not prove
The 30-to-40-hour answer is not a verified mission count, completionist estimate, or promise for every player. The approved official material does not provide enough evidence to publish an exact walkthrough length or a reliable “all content” total.
Planning recommendation
Use 30 hours as the lower planning bound and 40 hours as the safer main-story budget. If this is your first turn-based tactics game, plan closer to the upper end so you can learn the systems without rushing the campaign.