Sonic 3 & Knuckles — 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
Sonic 3 & Knuckles brings Sonic back to face Dr. Eggman, whose Death Egg has crash-landed atop a volcano on the Floating Island. Sonic must stop Eggman from getting hold of the Master Emerald, all while Knuckles keeps getting in his way. It is a classic from SEGA.
Best price today
€22.99
all-time low: keyshop €22.99 near low
The cheapest Sonic 3 & Knuckles key right now costs €22.99 at Kinguin — the best of 4 compared offers. The lowest price we have recorded for this game: €22.99.
The average low over the past 5 months was €37.81.
↳ chosen by the region label on the key — not a guarantee
Prices as of
GameSeal Marketplace
Kinguin Marketplace
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Sonic 3 & Knuckles prices by store 3
| Store | Type | Price |
|---|---|---|
| Kinguin | Marketplace | €22.99 |
| GameSeal | Marketplace | €32.12 |
| K4G | Marketplace | €32.32 |
Lowest — keyshops
€22.99
Oct 2026
Price history
last 88 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | — | €22.99 |
| Sept 2026 | — | €23.88 |
| Aug 2026 | — | €44.47 |
| Jul 2026 | — | €44.47 |
| Jun 2026 | — | €53.22 |
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: Kinguin, GameSeal, K4G
Price alert Catch alert Price alert
Confirm in our Telegram bot — no account, no spam.
All-time low so far: €22.99
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows® XP or higher | Windows® XP or higher |
| Graphics | 32MB or greater graphics card | — |
About this game — FAQ
Does Sonic 3 & Knuckles have multiplayer?
Yes, Sonic 3 & Knuckles has multiplayer.
Can Sonic 3 & Knuckles be played single-player?
Yes, besides multiplayer modes, Sonic 3 & Knuckles can also be played solo (single-player).
What languages does Sonic 3 & Knuckles support?
Sonic 3 & Knuckles is available in: English.
FAQ
Where is the cheapest place to buy a Sonic 3 & Knuckles key?
The cheapest Sonic 3 & Knuckles key is currently sold by Kinguin for €22.99. That is the best of 4 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €22.99.
How much does Sonic 3 & Knuckles cost?
Sonic 3 & Knuckles currently costs from €22.99 — the cheapest offer across the stores we track.
Is Kinguin an official store or a keyshop?
Kinguin is a keyshop (marketplace) where independent sellers list keys, so prices are often lower than in official stores. Every offer on ulov.gg is clearly labeled with its store type.
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.