Fibonex CD Key
PC price comparison · Fibonexia · Oct 22, 2026
Turn numbers into firepower. Build conveyor lines, calculate the ammunition your towers need and defend your Core in this single-player factory and tower-defense game. Reach the first boss, keep going in Endless, or experiment in Sandbox with or without enemies.
Lowest final price
at Steam · Standard Official
Historical low: $7.19 on October 23, 2026
Get the best deal ↗Compare Fibonex key prices
Sorted by final price including fees, never by commission.
| Store | Edition | Activates on | Region | Price | Fees | Final price | |
|---|---|---|---|---|---|---|---|
SteamOfficial | Standard | Steam | Global | −10%$7.19 | none | $7.19 | Go to store ↗ |
- SteamOfficial
Standard · Steam · Global
$7.19 · fees: noneGo to store ↗$7.19
Fibonex price history
The chart appears after a few days.
Historical lows by store
- Steam$7.19
About Fibonex
Turn numbers into firepower Fibonex is a single-player factory-building and tower-defense game where your production line is also your ammunition supply. Mine numbers, route them along conveyor belts and combine them in Math Machines. Feed the results into Ammo Makers, supply your towers and protect the Core. Build a factory that can fight The right number is part of the defense. When a wave calls for different ammunition, your factory needs to deliver it. Change a calculation, split a supply line or expand production to keep more towers supplied. A powerful weapon still needs a working route from the source to its input. Research new tools, upgrade machines and bring different tower roles into your defense. Balance production and transport as enemies approach from different sides. Use the preparation time between waves to rebuild, or start the next wave when you are ready. Reach the boss, then choose what comes next Math Wars begins with a guided introduction and a compact sequence of goals leading through ten introductory waves to the first boss. New enemy types ask you to rethink your setup along the way. After the first boss, finish your run or continue with the same factory in Endless. If a wave goes wrong, the saved preparation checkpoint lets you retry with time to adjust your defenses.Make room for experiments Sandbox opens the building and research toolbox for free construction and upgrades. Play with or without enemies, explore projectile and light systems, or work on a factory at your own pace. Six optional experiment ideas give you small goals, from making a seven to keeping both Splitter outputs moving. Choose industrial artwork or mathematical diagrams. Look up machines, their inputs and practical tips in the illustrated Block Wiki. Play locally with mouse and keyboard, save your factory and return to it later. English and German interface. Math Wars and Sandbox are included, with no in-game purchases.Read more
Fibonex system requirements
Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 11 (64-bit)
- Processor: Intel Core i5-6500 / AMD Ryzen 3 1200 or better
- Memory: 8 GB RAM
- Graphics: NVIDIA GeForce GTX 750 Ti / AMD Radeon RX 550, 2 GB VRAM
- Storage: 1 GB available space
- Additional Notes: Requires a 64-bit processor and operating system. Keyboard and mouse required. Minimum display resolution: 1280 x 720.
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 11 (64-bit)
- Processor: Intel Core i5-8400 / AMD Ryzen 5 2600 or better
- Memory: 16 GB RAM
- Graphics: NVIDIA GeForce GTX 1050 Ti / AMD Radeon RX 560, 4 GB VRAM
- Storage: 2 GB available space
Fibonex key FAQ
+What is a Fibonex CD key?
A Fibonex CD key is a digital code that unlocks the game on a PC platform such as Steam. After redeeming it, you download the game directly from that platform and it stays in your library.
+What is the cheapest price for Fibonex?
The cheapest Fibonex key right now costs $7.19 at Steam, 10% off the regular price. We compare 1 offers from 1 store, and the price already includes payment and service fees.
+What is the historical low for Fibonex?
The lowest price we have recorded for Fibonex is $7.19 on October 23, 2026. Check the price history chart to decide whether to buy now or wait for the next sale.
+Is it safe to buy a Fibonex key?
Buying from an official store such as Steam, GOG or Epic Games is always safe. Key resellers are often cheaper but sell keys second-hand, so check the region lock and buyer protection before you buy. Every offer on GameKeyDeal is labelled as official or reseller.
