Causality — cheap CD keys, compare prices
Is it worth buying?
- The price is well above its low (was €0.97) — worth waiting for a drop or setting an alert. Notify me on a drop →
Estimate based on public reviews (Metacritic/Steam) and price history — the final call is yours.
About the game
Causality is a puzzle game built around manipulating time: players reorder how events unfold to change what happens by each level's end. Loju both developed and published the title in 2017.
Best price today
€3.99
all-time low: official €3.99 · keyshop €0.97 (+311%)
The cheapest Causality key right now costs €3.99 at Steam. The lowest price we have recorded for this game: €0.97.
The average low over the past 4 months was €2.22.
Prices as of
Steam best price Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Lowest — official stores
€3.99
Jul 2026
Lowest — keyshops
€0.97
Sept 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €3.99 | — |
| Sept 2026 | €3.99 | €0.97 |
| Aug 2026 | €3.99 | €1.92 |
| Jul 2026 | €3.99 | €1.99 |
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
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All-time low so far: €0.97
System requirements
| Minimum | |
|---|---|
| OS | Windows 7 |
| Processor | 1.5 Ghz |
| Memory | 1 GB RAM |
| Graphics | 128 MB |
| DirectX | Version 9.0c |
| Storage | 250 MB available space |
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About this game — FAQ
Can Causality be played single-player?
Yes, Causality is a single-player game.
Does Causality support a controller/gamepad?
Yes, Causality has full controller support.
What languages does Causality support?
Causality is available in: English, French, Italian, German, Spanish - Spain, Bulgarian, Russian, Japanese and 1 more.
Does Causality use Steam Cloud saves?
Yes, Causality uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a Causality key?
The cheapest Causality key is currently sold by Steam for €3.99. The lowest price we have ever recorded for this game: €0.97.
How much does Causality cost?
Causality currently costs from €3.99 — 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.