The Cat Protocol — cheap CD keys, compare prices
Is it worth buying?
The price is at or near the lowest we've tracked — a good time to buy
Buy · Steam €6.62
About the game
The Cat Protocol, developed and published by Exe.ye Loading in 2026, is an adventure game. A phone call upends Tom's school break just as it begins: a mysterious stranger has taken his cat Titi. To get the pet back, Tom must go on a quest of brain-teasers and hidden clues.
Best price today
€6.62
· · check “Region” on the seller’s page
Steam · Official store · Steam
Global key · check “Region” on the seller’s page
You pay Steam directly · same price as on their site
Notify me when it drops below €5.96
- On Steam
- €6.62
- lowest in tracked period
- €6.625 Nov
The cheapest The Cat Protocol key right now costs €6.62 at Steam. (Prices as of )
Offers 1 · PC · from €6.62
Prices as of
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Listed seller price shown — payment fees may vary by method.
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Lowest official since we started tracking (Nov 2026)
€6.62
Nov 2026
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
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows 10 64-bit | Windows10/11 64-bit |
| Processor | Dual core 2GHz | Dual core 2.5Ghz+ |
| Memory | 4 GB RAM | 8 GB RAM |
| Graphics | Integrated graphics (intel HD Graphics or equivalent) | Dedicated or recent integrated graphics |
| Storage | 5 GB available space | 5 GB available space |
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About this game — FAQ
Can The Cat Protocol be played single-player?
Yes, The Cat Protocol is a single-player game.
What languages does The Cat Protocol support?
The Cat Protocol is available in: English, French, German, Spanish - Spain, Simplified Chinese, Japanese, Portuguese - Portugal, Russian.
Does The Cat Protocol use Steam Cloud saves?
Yes, The Cat Protocol uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a The Cat Protocol key?
The cheapest The Cat Protocol key is currently sold by Steam for €6.62. The lowest price we have ever recorded for this game: €6.62.
How much does The Cat Protocol cost?
The Cat Protocol currently costs from €6.62 — 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.