Slime Rule — 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
Slime Rule is an RPG in which a monster suddenly appears and takes over Uzacan castle, defeating a line of the world's top heroes. The biggest shock of all is that it's nothing more than a tiny slime. Developed by DIG Games.
Best price today
€0.79
all-time low: official €0.79 · keyshop €2.26 near low
The cheapest Slime Rule key right now costs €0.79 at Steam — the best of 2 compared offers. The lowest price we have recorded for this game: €0.79.
The average low over the past 5 months was €0.79.
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.
Slime Rule prices by store 2
| Store | Type | Price |
|---|---|---|
| Steam | Official store | €0.79 |
| K4G | Marketplace | €2.26 |
Lowest — official stores
€0.79
Jul 2026
Lowest — keyshops
€2.26
Jul 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €0.79 | €2.26 |
| Sept 2026 | €0.79 | €2.26 |
| Aug 2026 | €0.79 | €2.26 |
| Jul 2026 | €0.79 | €2.26 |
| Jun 2026 | €0.79 | €2.26 |
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, K4G
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All-time low so far: €0.79
System requirements
| Minimum | |
|---|---|
| OS | Windows® 7/8/8.1/10 (32-bit/64-bit) |
| Processor | Intel Core 2 Duo or better |
| Memory | 2 GB RAM |
| Graphics | DirectX 9/OpenGL 4.1 capable GPU |
| DirectX | Version 9.0 |
| Storage | 400 MB available space |
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About this game — FAQ
Can Slime Rule be played single-player?
Yes, Slime Rule is a single-player game.
What languages does Slime Rule support?
Slime Rule is available in: English.
Does Slime Rule use Steam Cloud saves?
Yes, Slime Rule uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a Slime Rule key?
The cheapest Slime Rule key is currently sold by Steam for €0.79. That is the best of 2 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €0.79.
How much does Slime Rule cost?
Slime Rule currently costs from €0.79 — 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.