Chthonian TD — cheap CD keys, compare prices
Is it worth buying?
- 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
Chthonian TD is a fast, cooperative title blending roguelite action with tower-defense mechanics. Players face progressively tougher waves of enemies, gamble resources inside a hazard-filled mine, take down a boss, and then get a chance to find out just how long they can hold out in an Endless mode. Lukas Haupt is credited as both developer and publisher, and the game came out in 2026.
Best price today
€5.24
all-time low: official €5.24 near low
The cheapest Chthonian TD key right now costs €5.24 at Steam. The lowest price we have recorded for this game: €5.24.
The average low over the past 4 months was €6.55.
Prices as of
Steam best price Official store
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Listed seller price shown — payment fees may vary by method.
Lowest — official stores
€5.24
Oct 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €5.24 | — |
| Sept 2026 | €6.99 | — |
| Aug 2026 | €6.99 | — |
| Jul 2026 | €6.99 | — |
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: €5.24
System requirements
| Minimum | |
|---|---|
| OS | Windows 10/11 |
| Processor | Intel i5 4th Gen or equivalent |
| Memory | 6 GB RAM |
| Graphics | GTX 760 or equivalent |
| DirectX | Version 11 |
| Storage | 3 GB available space |
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About this game — FAQ
Does Chthonian TD have co-op?
Yes, Chthonian TD supports online co-op.
Does Chthonian TD have multiplayer?
Yes, Chthonian TD has multiplayer.
Can Chthonian TD be played single-player?
Yes, besides multiplayer modes, Chthonian TD can also be played solo (single-player).
What languages does Chthonian TD support?
Chthonian TD is available in: English.
Does Chthonian TD use Steam Cloud saves?
Yes, Chthonian TD uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a Chthonian TD key?
The cheapest Chthonian TD key is currently sold by Steam for €5.24. The lowest price we have ever recorded for this game: €5.24.
How much does Chthonian TD cost?
Chthonian TD currently costs from €5.24 — 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.