A School 666 Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €9.15 (-6%) at Gameseal, Steam Gift format · Cheapest official key: €9.75 · 2 verified stores, 3 offers in stock · Updated 54min ago.
You must stay alive in this horror endless school. Try to find the correct way to survive the anomalies in the endless school. Use your brain to escape from some extremely powerful anomalies bosses. Explore the story behinds this extremely powerful dimension... and don't die.
Turn back if you find any anomalies. You are waked in an endless school. You have to choose the way forward or backward. When you make the wrong decision, you will return to the origin.
Anything can become an anomaly. Every chair around you, every set of stationery, even the blackboard or the classroom itself can become an anomaly you didn't expect. You might be scared to death by these anomalies or laugh to death from them.
Extremely abnormal anomalies are looking for you. Every time you pass the six normal levels, you'll be pulled into their dimension by some powerful anomaly. Each dimension has different game rules. You need to find these game rules and escape.
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School 666 is a co-op horror game about finding anomalies.
In normal levels, players need to confirm whether there is any abnormality.
If there is an exception, go back along the way; if there is no exception, go forward.
In the Boss level, players need to find a way to escape according to the unique game rules of each level.
This game features more than 100 anomalies and more than 20 stages of abnormal dimensions.
This game pays tribute to many game and movie elements.
Sweet Baby Not Included.
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If you need my permission to live stream this game, as long as you attach the game name(School 666) to the video introduction or stream description, you will automatically be authorized(including videos and live broadcasts used for profit).
School 666 for PC starts at €9.15 at Gameseal, a Steam gift, which is 6% under the €9.75 it costs on the official store.
That €9.15 already includes the SEAL17CDK coupon, so apply it at checkout or the store will show you a higher price.
Only 3 offers across 2 stores carry it, and thin supply means the price barely moves.
That puts it 6% under its average of €9.75 since 2025, so today is a better entry point than most days of its life.
That €9.75 key is at its usual price: no bargain, no spike.
Worked out from 369 daily records of the Steam Key for School 666 across 1 stores. See the full price history.
The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.
By format: Steam Gift from €9.15 and Steam Key from €9.75.
2 of the 3 offers work on US — the Global ones plus the ones issued for your own region.
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What do our users think of School 666 for PC Digital?
A 1-4 player co-op survival horror game set in an infinite school full of anomalies. Escape shifting halls, avoid terrifying anomalies dragging you into other dimensions, and find out the dark reasons you’re at the school. A very tense atmosphere, players like it.
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