Lost:Antinomy — cheap CD keys, compare prices
Is it worth buying?
- Reviews are solid. (Steam 88%)
- 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
Lost:Antinomy is an RPG adventure with simulation elements built around a simple left-or-right swipe decision mechanic. Set on the continent of Astra, each choice steers the player toward different outcomes and story paths. Developed and published by IMaiIna in 2024.
Did you know?
Lost:Antinomy combines three genres in a single title: adventure, RPG, and simulation.
Best price today
€2.99
all-time low: official €2.99 near low
The cheapest Lost:Antinomy key right now costs €2.99 at Steam. The lowest price we have recorded for this game: €2.99.
The average low over the past 5 months was €2.99.
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
€2.99
Jul 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €2.99 | — |
| Sept 2026 | €2.99 | — |
| Aug 2026 | €2.99 | — |
| Jul 2026 | €2.99 | — |
| Jun 2026 | €2.99 | — |
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: €2.99
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows 10, 11 | Windows 10, 11 |
| Processor | Intel Core i3 3.0 GHz | Intel Core i3 3.0 GHz |
| Memory | 1 GB RAM | 1 GB RAM |
| Graphics | NVIDIA GeForce GTX 760 / AMD Radeon R9 280X | NVIDIA GeForce GTX 760 / AMD Radeon R9 280X |
| Storage | 500 MB available space | 500 MB available space |
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About this game — FAQ
Can Lost:Antinomy be played single-player?
Yes, Lost:Antinomy is a single-player game.
What languages does Lost:Antinomy support?
Lost:Antinomy is available in: Simplified Chinese, Traditional Chinese.
FAQ
Where is the cheapest place to buy a Lost:Antinomy key?
The cheapest Lost:Antinomy key is currently sold by Steam for €2.99. The lowest price we have ever recorded for this game: €2.99.
How much does Lost:Antinomy cost?
Lost:Antinomy currently costs from €2.99 — 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.