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A puzzle platformer about changing states.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
A puzzle platformer about changing states.
States have different types, objects in different states have different behaviours.
Explore the mechanics, change the states using logic, and find the solutions to the puzzles.
Nonlinear level map
Keyboard input remap
60 levels
Color blind friendly
If experience lag, please try update your system, update your driver, use windows 10 instead of windows 11, or other common technique.
Right now the cheapest offer for ➕1⃣ is CA$8.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for ➕1⃣ is CA$6.74 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when ➕1⃣ drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
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