ONE. — cheap CD keys, compare prices
Is it worth buying?
- Reviews are solid. (Steam 80%)
- The price is at or near its all-time low — a good time to buy.
Estimate based on public reviews (Metacritic/Steam) and price history — the final call is yours.
About the game
ONE. is a 1990s visual novel widely regarded as one of the titles that helped establish the "nakige" genre — visual novels built around evoking strong emotional reactions from players. This release adds refreshed artwork, new animations, and extra features compared to the original version. The game is categorized under adventure and simulation. It was developed by novamicus and published by Shiravune in 2023.
Best price today
€7.80
all-time low: official €7.80 · keyshop €11.63 near low
The cheapest ONE. key right now costs €7.80 at Steam — the best of 7 compared offers. The lowest price we have recorded for this game: €7.80.
The average low over the past 4 months was €7.80.
↳ chosen by the region label on the key — not a guarantee
Prices as of
Steam best price Official store
Driffle Marketplace
Gog Official store
Fanatical Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
ONE. prices by store 6
| Store | Type | Price |
|---|---|---|
| Steam | Official store | €7.80 |
| Driffle | Marketplace | €11.99 |
| Kinguin | Marketplace | €11.99 |
| K4G | Marketplace | €11.99 |
| Gog | Official store | €17.84 |
| Fanatical | Official store | €19.50 |
Lowest — official stores
€7.80
Jul 2026
Lowest — keyshops
€11.63
Aug 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €7.80 | €11.99 |
| Sept 2026 | €7.80 | €11.99 |
| Aug 2026 | €7.80 | €11.63 |
| Jul 2026 | €7.80 | €11.99 |
Lowest in-stock price per month from our price history; the current month is the low so far.
How to activate your key
- Steam key — open the Steam client → Games → Activate a Product on Steam → enter the key. Stores with this activation: Steam, Driffle, Kinguin, K4G, Fanatical
- GOG key — on GOG.com → Redeem a code (or in GOG Galaxy: Add games & friends → Redeem GOG code). Stores with this activation: Gog
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All-time low so far: €7.80
System requirements
| Minimum | |
|---|---|
| OS | Windows 10 / 11 |
| Processor | Intel Core2Duo 2.4GHz |
| Memory | 4 GB RAM |
| DirectX | Version 11 |
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About this game — FAQ
Can ONE. be played single-player?
Yes, ONE. is a single-player game.
What languages does ONE. support?
ONE. is available in: English, Japanese, Simplified Chinese, Traditional Chinese.
Does ONE. use Steam Cloud saves?
Yes, ONE. uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a ONE. key?
The cheapest ONE. key is currently sold by Steam for €7.80. That is the best of 7 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €7.80.
How much does ONE. cost?
ONE. currently costs from €7.80 — the cheapest offer across the stores we track.
Is Steam an official store or a keyshop?
Steam is an official store — keys come directly from the publisher or an authorized distributor.
Are keys from these stores legal?
Buying is legal — keys come from the grey market, so a small deactivation risk exists. So before paying, check the seller's buyer protection.
Which key region should I pick?
Global activates everywhere. Regional keys (Europe, North America, RU-CIS) only work on accounts from that region — use the Region filter to match your account.
What is an activation platform?
The service where the key activates — Steam, GOG, Epic or the publisher's platform. A key for one platform won't work on another, hence the separate filter.
What's the difference between editions?
Standard is the base game; Deluxe usually adds an expansion or bonus content. The edition filter shows exactly that variant, with no mixed prices.