100 Undersea Cats — 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 €1.29
About the game
100 Undersea Cats sends players through a series of themed, cat-filled settings, with hand-drawn scenery to explore while tracking down 100 cats hidden across the game. It was made and published by 100 Cozy Games and Cats, and released in 2026.
Best price today
€1.29
· · 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 €1.16
- On Steam
- €1.29
- all-time low
- €1.2918 Oct
- Average low, 3 mo.
- €1.59
The cheapest 100 Undersea Cats key right now costs €1.29 at Steam. (Prices as of )
Offers 1 · PC · from €1.29
Prices as of
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
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Lowest official since we started tracking (Aug 2026)
€1.29
Oct 2026
Monthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €1.29 | — |
| Sept 2026 | €1.99 | — |
| Aug 2026 | €1.49 | — |
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
System requirements
| Minimum | |
|---|---|
| OS | Windows 10/11 |
| Processor | 2 GHz Dual Core |
| Memory | 2 GB RAM |
| Graphics | 1GB + |
| Storage | 1 GB available space |
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About this game — FAQ
Can 100 Undersea Cats be played single-player?
Yes, 100 Undersea Cats is a single-player game.
What languages does 100 Undersea Cats support?
100 Undersea Cats is available in: English, French, Italian, German, Spanish - Spain, Arabic, Bulgarian, Hungarian and 95 more.
FAQ
Where is the cheapest place to buy a 100 Undersea Cats key?
The cheapest 100 Undersea Cats key is currently sold by Steam for €1.29. The lowest price we have ever recorded for this game: €1.29.
How much does 100 Undersea Cats cost?
100 Undersea Cats currently costs from €1.29 — 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.