Causality — cheap CD keys, compare prices
Is it worth buying?
- Reviews are excellent. (Steam 93%)
- 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
Causality is a survival horror game set in a school full of mysterious psychic phenomena. Players must rescue three trapped students while piecing together the real story behind the building and the causal links between its events. It was developed by WAFFLE GAMES and published by PsychoFlux Entertainment in 2021.
Did you know?
Uncovering the causal relationships between events is the core narrative mechanic in Causality, a concept reflected in the game's own title.
Best price today
€1.07
all-time low: official €1.07 · keyshop €1.99 near low
The cheapest Causality key right now costs €1.07 at Steam — the best of 3 compared offers. The lowest price we have recorded for this game: €1.07.
The average low over the past 5 months was €4.81.
Prices as of
Steam best price Official store
Fanatical Official store
Fanatical Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Causality prices by store 2
| Store | Type | Price |
|---|---|---|
| Steam | Official store | €1.07 |
| Fanatical | Official store | €6.89 |
Lowest — official stores
€1.07
Oct 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €1.07 | — |
| Sept 2026 | €6.89 | — |
| Aug 2026 | €6.89 | — |
| Jul 2026 | €6.89 | €1.99 |
| Jun 2026 | €7.19 | — |
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, Fanatical
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All-time low so far: €1.07
System requirements
| Minimum | |
|---|---|
| OS | Windows 7 / 8 / 8.1 / 10 |
| Processor | Any processor w/ a clock rate of 2 GHz |
| Memory | 1 GB RAM |
| Graphics | CPU-integrated or on-board graphics |
| Storage | 250 MB available space |
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About this game — FAQ
Does Causality have multiplayer?
Yes, Causality has multiplayer. It supports PvP.
Can Causality be played single-player?
Yes, besides multiplayer modes, Causality can also be played solo (single-player).
What languages does Causality support?
Causality is available in: Korean, English, Japanese.
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 €1.07. That is the best of 3 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €1.07.
How much does Causality cost?
Causality currently costs from €1.07 — 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.