Price stats
- Lowest in 48 days
- USD 1.99
- Highest in 48 days
- USD 3.99
The all-time low is CheapShark's, across every store it tracks. Our own record starts 3 Sep 2026.
Price history USD 1.99 – USD 3.99
Does QTI - Quantum Tunnel Idle go on sale?
Yes. Since we started watching on 3 Sep 2026, QTI - Quantum Tunnel Idle has been on sale once, at -50% (USD 1.99, 1 Oct – 8 Oct 2026). In the Autumn Sale (1 Oct – 8 Oct 2026) it was USD 1.99 (-50%).
Next possible discount: 7 Nov 2026 at the earliest. Steam allows no discount within 30 days of another. Steam's rules let it join the Winter Sale (17 Dec).
| 1 Oct – 8 Oct 2026 | -50% | USD 1.99 |
|---|
Every price change DropWatch has recorded from Steam since 3 Sep 2026, in USD. The earliest dates follow Steam's discount rules and the US prices we see; a publisher may not discount at all.
Regional prices on Steam
| United States | USD 3.99 |
|---|---|
| Australia | AUD 5.94 |
| Brazil | BRL 13.78 |
| Canada | CAD 4.98 |
| Germany (euro) | EUR 3.98 |
| Malaysia | MYR 11.50 |
| Singapore | SGD 4.24 |
Today's price in each region we collect. Steam sets these per region rather than by exchange rate.
AN IDLE GAME BASED ON THE "TUNNELING EFFECT"!
- Developer
- Imoyokan
- Publisher
- Idle System, Inc.
- Released
- 5 Jun 2023
- Platforms
- Windows
- Genres
- Simulation
