The Diary — cheap CD keys, compare prices
Is it worth buying?
- Reviews are mixed. (Steam 68%)
- 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
The Diary slowly pieces together the story of a missing person through a series of journal entries, with the player using deduction to figure out whether the truth sits in what came before or what's happening now. Frequent twists keep the truth hard to pin down, and while time buries much of what happened, traces of it still linger through a thick fog. The game was developed by HuCang Studio and Pone Games, and published by IndieArk in 2025.
Best price today
€7.99
all-time low: official €11.05 · keyshop €7.99 near low
On Steam: €11.05 — you save 28% here
The cheapest The Diary key right now costs €7.99 at Kinguin — the best of 2 compared offers. The lowest price we have recorded for this game: €7.99. The cheapest official store price is €11.05 at Steam.
The average low over the past 4 months was €8.37.
Prices as of
Steam Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
The Diary prices by store 2
| Store | Type | Price |
|---|---|---|
| Kinguin | Marketplace | €7.99 |
| Steam | Official store | €11.05 |
Lowest — official stores
€11.05
Jul 2026
Lowest — keyshops
€7.99
Aug 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €11.05 | €7.99 |
| Sept 2026 | €11.05 | €7.99 |
| Aug 2026 | €11.05 | €7.99 |
| Jul 2026 | €11.05 | €9.50 |
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: Kinguin, Steam
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All-time low so far: €7.99
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows 7 | Windows 10 |
| Processor | i5-4670K | i7-7700K |
| Memory | 4 GB RAM | 8 GB RAM |
| Graphics | GTX 960M | GTX 1060 6GB |
| DirectX | Version 10 | Version 11 |
| Storage | 4 GB available space | 4 GB available space |
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About this game — FAQ
Can The Diary be played single-player?
Yes, The Diary is a single-player game.
What languages does The Diary support?
The Diary is available in: Simplified Chinese, English, Japanese.
Does The Diary use Steam Cloud saves?
Yes, The Diary uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a The Diary key?
The cheapest The Diary key is currently sold by Kinguin for €7.99. That is the best of 2 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €7.99.
How much does The Diary cost?
The Diary currently costs from €7.99 — the cheapest offer across the stores we track. For comparison, the game costs €11.05 on Steam, so buying a key saves you about 28%.
Is Kinguin an official store or a keyshop?
Kinguin is a keyshop (marketplace) where independent sellers list keys, so prices are often lower than in official stores. Every offer on ulov.gg is clearly labeled with its store type.
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.