Steam
BestOfficialIn stockAn Eye for Optical Theory 1666 · Region US · Jul 11
$1.99
An Eye for Optical Theory 1666
An Eye for Optical Theory 1666 is a short point & click horror adventure game with a focus on atmosphere and narrative. It is the plague year of 1666 and Isaac Newton, in lockdown at his home, has been thinking on the topic of Optics, and planning a series of experiments. Will you help him?
OfficialJul 9, 2023 · Perfect Crime GamesAdventureIndieFamily SharingSingle-playerSteam AchievementsWindows
Current best
$1.99
at Steam · Jul 11
All-time low
$1.99
Jul 11, 2026
Stores tracked
1
sources indexed
Review signal
No reviews
Current best · Steam
$1.99
Observed Jul 11
View best listingCurrent low target
$1.99 · matches the current indexed low
KeyDwarf only tracks observations — checkout happens on the store.
Tracked Stores
Best indexed price $1.99 at Steam.
1/1
View listing
How trust is scored: KeyDwarf combines source type, known retailer posture, marketplace risk, activation-region warnings, and source transparency. Checkout and support still happen with the external seller.
Price History
1 observationsBest observed priceAll-time low
All-time low
$1.99
Jul 11, 2026 · Steam
12-week avg
$1.99
1 recent observations
Current vs low
At low
Current $1.99
Recommendation
At indexed low
current indexed price matches the low
Lowest indexed daily price per currency. KeyDwarf tracks listings and does not sell keys.
Media
11 indexedCommon Questions
Where is An Eye for Optical Theory 1666 cheapest right now?
An Eye for Optical Theory 1666 is currently indexed at $1.99 from Steam. Publisher, direct storefront, or authorized retail source. Check the linked store's current terms before acting.
What is the historical low for An Eye for Optical Theory 1666?
The indexed low for An Eye for Optical Theory 1666 is $1.99 from Steam, observed Jul 11, 2026. The current indexed price is at that low, so KeyDwarf labels it "At indexed low".
Is the top source safe?
Steam is labeled "Official store" in the index. KeyDwarf tracks the listing and source risk, but checkout and support stay with the external store.
What is the review signal?
No review summary is indexed for this game yet.
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