KSEF
Short description
You are Janusz, a 47-year-old Polish business owner. Your mission: issue one e-invoice through KSeF before 5 PM. A Windows XD bureaucracy simulator with 15 apps, 30+ random interruptions, multiple endings, and disco polo.
- Developer
- Januszex
- Publisher
- Januszex
- Release
- Tue, Jun 23, 2026
- Price
- $4.99
- Reviews
- 10
- Positive
- 90%
- Followers
- n/a
- Owners (estimated)
- 0 – 20K
- Concurrent players
- n/a
- Genres
- Casual, Indie
- Tags
Review count and SteamSpy's owner range agree well enough to narrow the estimate down to this band. Multiplied by $4.99, the average price these copies actually sold for — weighted from the price history rather than taken from the $4.99 launch price. Before Steam's cut, VAT and refunds. How these numbers are calculated.
Waiting for KSEF to get cheaper? Name your price and we will email you when it gets there.
Media
History
No history in this range. Try a wider one — or snapshots have not started yet, they begin the first time the refresh job reaches this game.
1 data points going back to Aug 5, 2026 lie outside the 90-day window of your plan. Plus shows the complete history.