Stack Prootocol — 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
Stack Prootocol is a puzzle-platformer starring Meep, a RAM-obsessed USB mouse, who stacks blocks and bends gravity to carve out new routes. The cyberspace journey centers on fixing a broken toaster, with a digital void ready to swallow any misstep. Dare Looks and Mahmu-Kai both developed and published the title in 2025.
Best price today
€1.00
all-time low: official €6.15 · keyshop €1.00 near low
On Steam: €6.15 — you save 84% here
The cheapest Stack Prootocol key right now costs €1.00 at Kinguin — the best of 2 compared offers. The lowest price we have recorded for this game: €1.00. The cheapest official store price is €6.15 at Steam.
The average low over the past 4 months was €1.21.
Prices as of
Steam Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Stack Prootocol prices by store 2
| Store | Type | Price |
|---|---|---|
| Kinguin | Marketplace | €1.00 |
| Steam | Official store | €6.15 |
Lowest — official stores
€6.15
Jul 2026
Lowest — keyshops
€1.00
Sept 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €6.15 | €1.00 |
| Sept 2026 | €8.79 | €1.00 |
| Aug 2026 | €8.79 | €1.10 |
| Jul 2026 | €6.15 | €1.74 |
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, Steam
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All-time low so far: €1.00
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows 10 or higher | Windows 11 |
| Memory | 2 GB RAM | 4 GB RAM |
| DirectX | Version 12 | Version 12 |
| Storage | 300 MB available space | 500 MB available space |
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About this game — FAQ
Can Stack Prootocol be played single-player?
Yes, Stack Prootocol is a single-player game.
Does Stack Prootocol support a controller/gamepad?
Yes, Stack Prootocol has full controller support.
What languages does Stack Prootocol support?
Stack Prootocol is available in: English, German, Spanish - Spain.
Does Stack Prootocol use Steam Cloud saves?
Yes, Stack Prootocol uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a Stack Prootocol key?
The cheapest Stack Prootocol key is currently sold by Kinguin for €1.00. That is the best of 2 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €1.00.
How much does Stack Prootocol cost?
Stack Prootocol currently costs from €1.00 — the cheapest offer across the stores we track. For comparison, the game costs €6.15 on Steam, so buying a key saves you about 84%.
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.